AppCorpus MCP gives your agent current app data, prices, screens, features and sources.
View JSON
GET /api/v3/apps/6752113848
{
"app_id": 6752113848,
"canonical_url": "https://appcorpus.com/apps/cat-s-library-book-tracker-6752113848",
"identity": {
"name": "Cat's Library - Book Tracker",
"slug": "cat-s-library-book-tracker",
"developer": {
"name": "Lo-Fi Labs Inc.",
"url": "https://appcorpus.com/developers/lo-fi-labs-inc-developer_fb830f9880ad622f90843bb7569d99d8"
},
"icon_url": "https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/d5/db/a3/d5dba34a-c7cb-b213-817e-508cd3ecf6a0/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/512x512bb.jpg",
"stores": [
"apple",
"gplay"
],
"platforms": [
"iphone",
"ipad",
"android"
],
"status": {
"state": "active",
"label": "Active",
"last_checked": "2026-08-07",
"last_checked_label": "7 Aug 2026",
"banner": null,
"region_note": null
}
},
"listings": [
{
"store": "apple",
"status": "ACTIVE",
"url": "https://apps.apple.com/us/app/cats-library-book-tracker/id6752113848?uo=4",
"rating": 4.8,
"rating_count": 30,
"formatted_price": "Free",
"is_free": true,
"has_iap": true,
"has_subscription": false,
"version": "1.3.1",
"updated": "2026-08-01",
"currency": "USD"
},
{
"store": "gplay",
"status": "ACTIVE",
"url": "https://play.google.com/store/apps/details?id=com.tld.takeabook",
"rating": 4.74,
"rating_count": 1108,
"formatted_price": "Free",
"is_free": true,
"has_iap": true,
"has_subscription": false,
"version": "1.3.1",
"updated": "2026-08-01",
"currency": "USD"
}
],
"summary": {
"one_liner": null,
"summary": null,
"best_for": [],
"not_for": [],
"status": "fallback",
"at_a_glance": [
"From $2.49/mo",
"Free to download",
"In-app purchases"
]
},
"categories": {
"official": [
"Books",
"Books & Reference",
"Lifestyle"
],
"appcorpus": [
{
"category_id": "books",
"label": "Books",
"url": "https://appcorpus.com/categories/books"
},
{
"category_id": "lifestyle",
"label": "Lifestyle",
"url": "https://appcorpus.com/categories/lifestyle"
}
]
},
"use_cases": [],
"features": [
{
"capability_id": "free_app",
"label": "Free app",
"availability": "yes",
"access_level": "free",
"scope": null,
"evidence": "Store published"
},
{
"capability_id": "in_app_purchases",
"label": "In-app purchases",
"availability": "yes",
"access_level": "free_limited",
"scope": null,
"evidence": "Store published"
}
],
"pricing": [
{
"store": "apple",
"formatted_price": "Free",
"is_free": true,
"has_iap": true,
"has_subscription": false,
"currency": "USD",
"market": "us",
"last_verified": "2026-08-06",
"rows": [
"Pro Book Butler Annual Subscription — $29.99/year ($2.49/mo)",
"Pro Book Butler Monthly Sub — $4.99/month",
"Coin Pack - 100 — $1.49",
"Coin Pack - 1000 — $9.99",
"Coin Pack - 500 — $6.49",
"Pro Book Butler Lifetime Subs — $79.99"
]
},
{
"store": "gplay",
"formatted_price": "Free",
"is_free": true,
"has_iap": true,
"has_subscription": false,
"currency": "USD",
"market": "us",
"last_verified": "2026-08-07",
"rows": [
"Free to download",
"In-app purchases: $1.49 - $79.99 per item"
]
}
],
"screens": [
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],
"ratings": [
{
"store": "apple",
"average": 4.8,
"count": 30,
"market": "us",
"observed_at": "2026-08-06",
"reviews": [
{
"rating": 5,
"title": "독서 시간 표시",
"body": "독서 시간 제외하고 읽은 페이지만 저장할 수 있는 기능이 있으면 좋겠어요",
"author": "Annieeeee888",
"date": "6 Aug 2026"
},
{
"rating": 1,
"title": "not working",
"body": "app hasn’t worked in two days",
"author": "paco_inpico",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "Fun app!",
"body": "I love using this app to track my reading. I wish there were more things in the shop for my cat, but I appreciate that they have been adding more options.",
"author": "BBaird36",
"date": "6 Aug 2026"
},
{
"rating": 3,
"title": "App is not working",
"body": "I LOVE this app with every fiber of my being. This helps me keep track of my reading log after I’ve been struggling for the past few weeks. The reason why my review is low, however, is that the app suddenly stopped working on me, constantly hitting me with the “No Internet Connection” bug. My app is updated all the way, my phone was restarted, and the app was even deleted and redownloaded to clear out the cache, but it still won’t work. This bug confuses me too because it was NEVER an issue in the area I’m in. I’m worried that all of my data has gotten lost while trying to fix it and there’s no email to contact for issues like these. Please, if there are any updates on this fix, do it ASAP.",
"author": "J-Lock7374",
"date": "6 Aug 2026"
}
]
},
{
"store": "gplay",
"average": 4.74,
"count": 1108,
"market": "us",
"observed_at": "2026-08-06",
"reviews": []
}
],
"privacy": [
{
"store": "apple",
"declarations": [
{
"title": "Data Not Linked to You",
"detail": "Analytics — Diagnostics — Crash Data",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Analytics — Usage Data — Other Usage Data",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Analytics — Usage Data — Product Interaction",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "App Functionality — Diagnostics — Crash Data",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "App Functionality — Usage Data — Product Interaction",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Developer’s Advertising or Marketing — Identifiers — Device ID",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Third-Party Advertising — Usage Data — Advertising Data",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Diagnostics",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Identifiers",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Usage Data",
"source": "Developer declared"
},
{
"title": "Data Used to Track You",
"detail": "Usage Data — Advertising Data",
"source": "Developer declared"
},
{
"title": "Data Used to Track You",
"detail": "Usage Data",
"source": "Developer declared"
}
],
"accessibility": []
},
{
"store": "gplay",
"declarations": [
{
"title": "Security practices",
"detail": "Your data isn’t transferred over a secure connection — Data isn’t encrypted",
"source": "Developer declared"
},
{
"title": "Security practices",
"detail": "The developer provides a way for you to request that your data be deleted — You can request that data be deleted",
"source": "Developer declared"
}
],
"accessibility": []
}
],
"changes": [
{
"store": "apple",
"version": "1.1.22",
"released_at": null,
"notes": "New Features & Improvements • Barcode (ISBN) search improvement: Enhanced book recognition during barcode scanning with better multilingual book search support. Register international books more easily! • Book status change logic improvement: Fixed an issue where the current page was incorrectly calculated when changing book status. Your reading records are now managed more accurately. Bug Fixes • Quote collection memo save bug fix: Fixed an issue where memos were not actually saved when collecting quotes. Your precious thoughts are now recorded without fail. Service Optimization • Improved UI design and enhanced app stability for a more pleasant experience."
},
{
"store": "apple",
"version": "1.1.23",
"released_at": null,
"notes": "New Features & Improvements • Search in Library: You can now quickly search for books in your library. Service Optimization • Enhanced app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.1.24",
"released_at": null,
"notes": "New Features & Improvements • The Statistics calendar now reflects each book's reading start, stop, and finish dates. • You can now leave reviews and ratings for Did Not Finish books. Bug Fixes • Fixed minor bugs. Service Optimization • Enhanced UI design and improved app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.1.25",
"released_at": null,
"notes": "New Features & Improvements • You can now edit or delete sentences and reading logs directly from the calendar. • Tap a tag in your library to quickly edit book details. Service Optimization • Enhanced UI design and improved app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.1.26",
"released_at": null,
"notes": "New Features & Improvements • Added new themes. Service Optimization • Improved the UI design and enhanced app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.1.27",
"released_at": null,
"notes": "Bug Fixes • Urgently fixed an issue where the app could not be launched. New Features & Improvements • Added new themes. Service Optimization • Improved the UI design and enhanced app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.1.28",
"released_at": null,
"notes": "New Features & Improvements • Improved background music playback and added new tracks to enjoy while reading. Service Optimization • We've refined the UI and strengthened app stability for a more comfortable experience."
},
{
"store": "apple",
"version": "1.1.29",
"released_at": null,
"notes": "New Features & Improvements • Added a new theme, Positano. • Refined the author-based sorting in your library for a cleaner look. Service Optimization • We've refined the UI and strengthened app stability for a more comfortable experience."
},
{
"store": "apple",
"version": "1.1.30",
"released_at": null,
"notes": "New Features & Improvements • Added the Cozy Study theme and new accessories. Bug Fixes • Fixed minor display issues on some screens. Service Optimization • Improved app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.1.32",
"released_at": null,
"notes": "New Features & Improvements • Check your reading progress and timer right from a home screen widget, without opening the app. • Added manual reading logs so you can record your reading time without the timer. • Added a calendar to see your reading streak at a glance. Bug Fixes • Fixed minor display issues on some screens. Service Optimization • Improved app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.1.33",
"released_at": null,
"notes": "Bug Fixes • Fixed minor display issues on some screens. Service Optimization • Improved app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.2.0",
"released_at": null,
"notes": "New Features & Improvements • Added new hats and a desk decoration to the shop. • Reading Recap: revisit the books, pages, time, and quotes you collected this month, this year, or all time. • Refined the comment your cat gives when you pick a book, plus easier plan switching and instant details for books you already own. Bug Fixes • Fixed the home widget missing data after sign-in and small-screen clipping. Service Optimization • Improved app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.2.1",
"released_at": null,
"notes": "Bug fixes and stability improvements"
},
{
"store": "apple",
"version": "1.2.10",
"released_at": null,
"notes": "New Features & Improvements • Your last-used options are now remembered when creating quote share images. • Improved the colors of the reading stats chart. Bug Fixes • Fixed minor issues that could occur during use. Service Optimization • Improved the UI and enhanced app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.2.11",
"released_at": null,
"notes": "New Features & Improvements • Flip through your collected quotes one card at a time. • Shape the text on quote images just the way you like, and dress them up with new fonts. • Picking a date or time feels brand new, and you can jump right to the day you're looking for. Bug Fixes • Fixed minor issues that could occur during use. Service Optimization • Improved the UI and enhanced app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.2.2",
"released_at": null,
"notes": "New Features & Improvements • Save your Reading Recap as a single image and share it with friends. Bug Fixes • Fixed minor display issues on some screens. Service Optimization • Improved app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.2.3",
"released_at": null,
"notes": "New Features & Improvements • You can now mark books as ebook or paper and track progress by page or percent. • Refreshed the add and edit book screens for a cleaner look. Bug Fixes • Fixed display issues on some screens and layout problems on smaller displays. Service Optimization • Polished the UI and improved app stability for a smoother experience."
},
{
"store": "apple",
"version": "1.2.4",
"released_at": null,
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},
{
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"reason": "Same category + similar ratings"
}
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}
}
