AI app builder and APK maker for Android. Create and edit apps without coding.
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AppCreator24 is an AI app builder and APK maker for Android. Creates Android apps and builds APKs, returning download and editor links. Also replaces the sections of an app previously created through this service. Supports up to six sections: webpages/PDFs, HTML content, quizzes, audio, video, user video sharing, chat, user lists, RSS feeds, forums and games. Produces an initial configurable app structure, not arbitrary Android source code. Creation in this flow does not require an AppCreator24 account. Inputs: six general string fields plus matching type_N/title_N/info_N fields for section slots 1-6. Each used slot has a nonblank title. Unused slots have all three fields absent. Content formats and length limits are documented in the parameter schemas. Resource URLs refer to existing content. The server does not search the web or verify resource availability. Creation: previous_id is "0". A new app and initial icon are prepared and the app enters a compilation queue. Editing: previous_id is the complete id returned by an earlier successful call. The payload represents the entire final app structure, including unchanged sections; omitted sections are removed. There is no partial-update mode or configuration-retrieval tool. Editing updates the configuration but does not change the actual app name or regenerate its icon. Additional customization, image galleries and advanced settings are available in the AppCreator24 web editor. Success returns structuredContent with id, download_url and edit_url. The id includes an app-management code used for subsequent edits; edit links also contain this code. A download link is not a compilation-completion signal. The service does not submit apps to Google Play or guarantee store approval. Failures return isError=true with an explanatory text. A validation rejection occurs before a backend request. Backend failures, timeouts and unexpected responses can leave the operation's outcome unknown. Creation and editing are not idempotent; another call can create a duplicate app or repeat changes. Some responses direct app management to the web editor.
App name, maximum 15 characters. Sets the actual app name on creation. During editing this field updates the welcome title but not the actual app name.
Theme of the app. Possible values: white, black, blue, red, green, orange.
Welcome message, maximum 255 characters. Line breaks and emojis are supported.
Main app language, expressed as one of the listed language names rather than a locale code.
Brief app description, maximum 255 characters.
Creation: string "0". Editing: complete id from a previous successful response, including the six-character app-management code. An edit replaces the full section structure; a numeric-only ID is invalid.
Section 1 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup.
Section 2 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup.
Section 3 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup.
Section 4 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup.
Section 5 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup.
Section 6 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup.
Type of section 1. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid.
Type of section 2. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid.
Type of section 3. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid.
Type of section 4. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid.
Type of section 5. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid.
Type of section 6. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid.
Display title of section 1, maximum 30 characters. Nonblank for a used section; absent for an unused slot.
Display title of section 2, maximum 30 characters. Nonblank for a used section; absent for an unused slot.
Display title of section 3, maximum 30 characters. Nonblank for a used section; absent for an unused slot.
Display title of section 4, maximum 30 characters. Nonblank for a used section; absent for an unused slot.
Display title of section 5, maximum 30 characters. Nonblank for a used section; absent for an unused slot.
Display title of section 6, maximum 30 characters. Nonblank for a used section; absent for an unused slot.
The server marks this tool as destructive. Running it may delete or overwrite data on the server or in any account you connected with your headers.
AppCreator24 is an AI app builder and APK maker for Android. Creates Android apps and builds APKs, returning download and editor links. Also replaces the sections of an app previously created through this service. Supports up to six sections: webpages/PDFs, HTML content, quizzes, audio, video, user video sharing, chat, user lists, RSS feeds, forums and games. Produces an initial configurable app structure, not arbitrary Android source code. Creation in this flow does not require an AppCreator24 account. Inputs: six general string fields plus matching type_N/title_N/info_N fields for section slots 1-6. Each used slot has a nonblank title. Unused slots have all three fields absent. Content formats and length limits are documented in the parameter schemas. Resource URLs refer to existing content. The server does not search the web or verify resource availability. Creation: previous_id is "0". A new app and initial icon are prepared and the app enters a compilation queue. Editing: previous_id is the complete id returned by an earlier successful call. The payload represents the entire final app structure, including unchanged sections; omitted sections are removed. There is no partial-update mode or configuration-retrieval tool. Editing updates the configuration but does not change the actual app name or regenerate its icon. Additional customization, image galleries and advanced settings are available in the AppCreator24 web editor. Success returns structuredContent with id, download_url and edit_url. The id includes an app-management code used for subsequent edits; edit links also contain this code. A download link is not a compilation-completion signal. The service does not submit apps to Google Play or guarantee store approval. Failures return isError=true with an explanatory text. A validation rejection occurs before a backend request. Backend failures, timeouts and unexpected responses can leave the operation's outcome unknown. Creation and editing are not idempotent; another call can create a duplicate app or repeat changes. Some responses direct app management to the web editor.
| Argument | Type | Description |
|---|---|---|
| name* | string | App name, maximum 15 characters. Sets the actual app name on creation. During editing this field updates the welcome title but not the actual app name. |
| theme* | string | Theme of the app. Possible values: white, black, blue, red, green, orange. |
| info_1 | string | Section 1 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup. |
| info_2 | string | Section 2 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup. |
| info_3 | string | Section 3 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup. |
{
"type": "object",
"required": [
"theme",
"previous_id",
"name",
"description",
"welcome",
"language"
],
"properties": {
"name": {
"type": "string",
"maxLength": 15,
"description": "App name, maximum 15 characters. Sets the actual app name on creation. During editing this field updates the welcome title but not the actual app name."
},
"theme": {
"enum": [
"white",
"black",
"blue",
"red",
"green",
"orange"
],
"type": "string",
"description": "Theme of the app. Possible values: white, black, blue, red, green, orange."
},
"info_1": {
"type": "string",
"maxLength": 4096,
"description": "Section 1 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup."
},
"info_2": {
"type": "string",
"maxLength": 4096,
"description": "Section 2 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup."
},
"info_3": {
"type": "string",
"maxLength": 4096,
"description": "Section 3 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup."
},
"info_4": {
"type": "string",
"maxLength": 4096,
"description": "Section 4 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup."
},
"info_5": {
"type": "string",
"maxLength": 4096,
"description": "Section 5 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup."
},
"info_6": {
"type": "string",
"maxLength": 4096,
"description": "Section 6 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup."
},
"type_1": {
"enum": [
"url",
"html",
"quiz",
"audio",
"video",
"users-videos",
"chat",
"users-finder",
"rss",
"forum",
"game"
],
"type": "string",
"description": "Type of section 1. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid."
},
"type_2": {
"enum": [
"url",
"html",
"quiz",
"audio",
"video",
"users-videos",
"chat",
"users-finder",
"rss",
"forum",
"game"
],
"type": "string",
"description": "Type of section 2. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid."
},
"type_3": {
"enum": [
"url",
"html",
"quiz",
"audio",
"video",
"users-videos",
"chat",
"users-finder",
"rss",
"forum",
"game"
],
"type": "string",
"description": "Type of section 3. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid."
},
"type_4": {
"enum": [
"url",
"html",
"quiz",
"audio",
"video",
"users-videos",
"chat",
"users-finder",
"rss",
"forum",
"game"
],
"type": "string",
"description": "Type of section 4. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid."
},
"type_5": {
"enum": [
"url",
"html",
"quiz",
"audio",
"video",
"users-videos",
"chat",
"users-finder",
"rss",
"forum",
"game"
],
"type": "string",
"description": "Type of section 5. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid."
},
"type_6": {
"enum": [
"url",
"html",
"quiz",
"audio",
"video",
"users-videos",
"chat",
"users-finder",
"rss",
"forum",
"game"
],
"type": "string",
"description": "Type of section 6. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid."
},
"title_1": {
"type": "string",
"maxLength": 30,
"description": "Display title of section 1, maximum 30 characters. Nonblank for a used section; absent for an unused slot."
},
"title_2": {
"type": "string",
"maxLength": 30,
"description": "Display title of section 2, maximum 30 characters. Nonblank for a used section; absent for an unused slot."
},
"title_3": {
"type": "string",
"maxLength": 30,
"description": "Display title of section 3, maximum 30 characters. Nonblank for a used section; absent for an unused slot."
},
"title_4": {
"type": "string",
"maxLength": 30,
"description": "Display title of section 4, maximum 30 characters. Nonblank for a used section; absent for an unused slot."
},
"title_5": {
"type": "string",
"maxLength": 30,
"description": "Display title of section 5, maximum 30 characters. Nonblank for a used section; absent for an unused slot."
},
"title_6": {
"type": "string",
"maxLength": 30,
"description": "Display title of section 6, maximum 30 characters. Nonblank for a used section; absent for an unused slot."
},
"welcome": {
"type": "string",
"maxLength": 255,
"description": "Welcome message, maximum 255 characters. Line breaks and emojis are supported."
},
"language": {
"enum": [
"catalan",
"english",
"french",
"italian",
"spanish",
"german",
"japanese",
"portuguese",
"russian",
"turkish",
"arabic",
"chinese",
"dutch",
"hindi",
"other"
],
"type": "string",
"description": "Main app language, expressed as one of the listed language names rather than a locale code."
},
"description": {
"type": "string",
"maxLength": 255,
"description": "Brief app description, maximum 255 characters."
},
"previous_id": {
"type": "string",
"maxLength": 25,
"description": "Creation: string \"0\". Editing: complete id from a previous successful response, including the six-character app-management code. An edit replaces the full section structure; a numeric-only ID is invalid."
}
},
"additionalProperties": false
}| info_4 | string | Section 4 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup. |
| info_5 | string | Section 5 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup. |
| info_6 | string | Section 6 content. Content format depends on type: url = webpage or direct PDF URL; video = YouTube video, direct video file or stream URL; audio = direct audio file/stream URL, not a webpage; rss = direct RSS XML URL, not Atom (maximum one RSS section per app); html = complete <html>...</html> document containing an img element; quiz = 4-6 question;correct_answer;wrong_answer_1;wrong_answer_2;wrong_answer_3 blocks joined by |, with no ; or | within fields (answers are shuffled by the server); forum = 2-6 nonblank category names joined by @, with no @ within names; chat/users-videos/users-finder = empty string; game = basketball, soccer, tennis, shooter, cars, cards, airplanes, pinball, puzzle, golf, martial arts, cricket, boats, christmas, education, skiing or skill. Maximum 4096 characters for the entire string, including HTML markup. |
| type_1 | string | Type of section 1. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid. |
| type_2 | string | Type of section 2. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid. |
| type_3 | string | Type of section 3. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid. |
| type_4 | string | Type of section 4. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid. |
| type_5 | string | Type of section 5. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid. |
| type_6 | string | Type of section 6. PDF content uses url; card games use game. An unused slot has no type/title/info fields. An empty type string is invalid. |
| title_1 | string | Display title of section 1, maximum 30 characters. Nonblank for a used section; absent for an unused slot. |
| title_2 | string | Display title of section 2, maximum 30 characters. Nonblank for a used section; absent for an unused slot. |
| title_3 | string | Display title of section 3, maximum 30 characters. Nonblank for a used section; absent for an unused slot. |
| title_4 | string | Display title of section 4, maximum 30 characters. Nonblank for a used section; absent for an unused slot. |
| title_5 | string | Display title of section 5, maximum 30 characters. Nonblank for a used section; absent for an unused slot. |
| title_6 | string | Display title of section 6, maximum 30 characters. Nonblank for a used section; absent for an unused slot. |
| welcome* | string | Welcome message, maximum 255 characters. Line breaks and emojis are supported. |
| language* | string | Main app language, expressed as one of the listed language names rather than a locale code. |
| description* | string | Brief app description, maximum 255 characters. |
| previous_id* | string | Creation: string "0". Editing: complete id from a previous successful response, including the six-character app-management code. An edit replaces the full section structure; a numeric-only ID is invalid. |