AppCorpus MCP gives your agent current app data, prices, screens, features and sources.
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GET /api/v3/apps/336370151
{
"app_id": 336370151,
"canonical_url": "https://appcorpus.com/apps/cello-tuner-336370151",
"identity": {
"name": "Cello Tuner",
"slug": "cello-tuner",
"developer": {
"name": "Alvin Yu",
"url": "https://appcorpus.com/developers/alvin-yu-developer_3c783c8b180298755fd747d795d32f93"
},
"icon_url": "https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/7e/2c/eb/7e2ceba3-fd5c-8a09-fb01-783373addaf1/CelloTunerAppIcon-0-0-1x_U007epad-0-1-sRGB-85-220.jpeg/512x512bb.jpg",
"stores": [
"apple"
],
"platforms": [
"iphone",
"ipad"
],
"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/cello-tuner/id336370151?uo=4",
"rating": 3.9,
"rating_count": 250,
"formatted_price": "Free",
"is_free": true,
"has_iap": false,
"has_subscription": false,
"version": "1.14.0",
"updated": "2026-05-14",
"currency": "USD"
}
],
"summary": {
"one_liner": null,
"summary": null,
"best_for": [],
"not_for": [],
"status": "fallback",
"at_a_glance": [
"Free to download"
]
},
"categories": {
"official": [
"Utilities",
"Music"
],
"appcorpus": [
{
"category_id": "utilities",
"label": "Utilities",
"url": "https://appcorpus.com/categories/utilities"
},
{
"category_id": "music",
"label": "Music",
"url": "https://appcorpus.com/categories/music"
}
]
},
"use_cases": [],
"features": [
{
"capability_id": "free_app",
"label": "Free app",
"availability": "yes",
"access_level": "free",
"scope": null,
"evidence": "Store published"
}
],
"pricing": [
{
"store": "apple",
"formatted_price": "Free",
"is_free": true,
"has_iap": false,
"has_subscription": false,
"currency": "USD",
"market": "us",
"last_verified": "2026-08-07",
"rows": [
"Free"
]
}
],
"screens": [
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/cd/9d/1c/cd9d1cc0-59f7-3f04-1c73-cdab8e26ca20/iPad_-_3.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Cello Tuner ipad screenshot 1"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/ae/e1/d9/aee1d9b3-bc5a-7e62-729a-bc5cb8dbb0c5/pr_source.jpg/576x768bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Cello Tuner ipad screenshot 2"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/15/db/ef/15dbefa9-170c-fd82-2259-9b2c59bd4eba/iPhone_6.5_-_3.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Cello Tuner iphone screenshot 3"
}
],
"ratings": [
{
"store": "apple",
"average": 3.9,
"count": 250,
"market": "us",
"observed_at": "2026-08-07",
"reviews": [
{
"rating": 5,
"title": "It’s a tuner for people who have an ear",
"body": "It works great. Nice and fast - I use it every time I practice my cello. A big step up from a tuning fork. But it doesn’t tell you if your note is too high or too low- you have to be able to do that by hearing and comparing the sounds from your tuner and cello.",
"author": "zoe leiter",
"date": "7 Aug 2026"
},
{
"rating": 5,
"title": "Wasn’t bad at all!",
"body": "It worked every time and I liked how sharp it felt to the touch as well!",
"author": "Jahred lemon",
"date": "7 Aug 2026"
},
{
"rating": 5,
"title": "Perfect Pitch",
"body": "This works much better than previous sites I've tried using. It matches great and I use it all the time before I practice!",
"author": "Lizzy Lou022",
"date": "7 Aug 2026"
},
{
"rating": 5,
"title": "Good",
"body": "Glad to have a way tune my cello Thanks",
"author": "Dan labelle",
"date": "7 Aug 2026"
},
{
"rating": 1,
"title": "Screen stayed blank???",
"body": "I got this app so I could tune my out-of-tune cello. But when I tapped the notes nothing happened. The screen stayed the same as when I had first opened it. It didn’t even do anything as I played any notes. Please fix this.",
"author": "Senor Chester",
"date": "7 Aug 2026"
}
]
}
],
"privacy": [
{
"store": "apple",
"declarations": [
{
"title": "Data Linked to You",
"detail": "Analytics — Diagnostics — Crash Data",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Analytics — Diagnostics — Performance Data",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Analytics — Identifiers — Device ID",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Analytics — Usage Data — Advertising Data",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Analytics — Usage Data — Product Interaction",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "App Functionality — Diagnostics — Crash Data",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Third-Party Advertising — Diagnostics — Crash Data",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Third-Party Advertising — Diagnostics — Performance Data",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Third-Party Advertising — Identifiers — Device ID",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Third-Party Advertising — Location — Coarse Location",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Third-Party Advertising — Usage Data — Advertising Data",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Third-Party Advertising — Usage Data — Product Interaction",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Diagnostics",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Identifiers",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Location",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Usage Data",
"source": "Developer declared"
},
{
"title": "Data Used to Track You",
"detail": "Diagnostics — Crash Data",
"source": "Developer declared"
},
{
"title": "Data Used to Track You",
"detail": "Diagnostics — Performance Data",
"source": "Developer declared"
},
{
"title": "Data Used to Track You",
"detail": "Diagnostics",
"source": "Developer declared"
},
{
"title": "Data Used to Track You",
"detail": "Identifiers — Device ID",
"source": "Developer declared"
},
{
"title": "Data Used to Track You",
"detail": "Identifiers",
"source": "Developer declared"
},
{
"title": "Data Used to Track You",
"detail": "Location — Coarse Location",
"source": "Developer declared"
},
{
"title": "Data Used to Track You",
"detail": "Location",
"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 — Product Interaction",
"source": "Developer declared"
},
{
"title": "Data Used to Track You",
"detail": "Usage Data",
"source": "Developer declared"
}
],
"accessibility": []
}
],
"changes": [
{
"store": "apple",
"version": "1.0",
"released_at": null,
"notes": ""
},
{
"store": "apple",
"version": "1.1",
"released_at": null,
"notes": "Minor Bug Fixes"
},
{
"store": "apple",
"version": "1.10.0",
"released_at": null,
"notes": "Updated for iOS 15"
},
{
"store": "apple",
"version": "1.11.0",
"released_at": null,
"notes": "Updated for iOS 16"
},
{
"store": "apple",
"version": "1.12.0",
"released_at": null,
"notes": "Updated for iOS 17"
},
{
"store": "apple",
"version": "1.13.0",
"released_at": null,
"notes": "Updated for iOS 18"
},
{
"store": "apple",
"version": "1.14.0",
"released_at": "2026-05-14",
"notes": "Minor UI fixes and stability improvements."
},
{
"store": "apple",
"version": "1.2",
"released_at": null,
"notes": "Adjusted UI for iPhone 5 Screen"
},
{
"store": "apple",
"version": "1.3",
"released_at": null,
"notes": "Update UI for iOS 7"
},
{
"store": "apple",
"version": "1.4",
"released_at": null,
"notes": "Minor Bug Fix for iOS 5 and iOS 6"
},
{
"store": "apple",
"version": "1.5",
"released_at": null,
"notes": "Minor Bug Fix"
},
{
"store": "apple",
"version": "1.6",
"released_at": null,
"notes": "Updated UI"
},
{
"store": "apple",
"version": "1.7",
"released_at": null,
"notes": "Minor bug fixes."
},
{
"store": "apple",
"version": "1.8",
"released_at": null,
"notes": "Update UI for iPhone X"
},
{
"store": "apple",
"version": "1.9.0",
"released_at": null,
"notes": "Updated for iOS 13"
}
],
"alternatives": [
{
"app_id": 1525664370,
"name": "Ukulele Tuner - TrueStudio",
"url": "https://appcorpus.com/apps/ukulele-tuner-truestudio-1525664370",
"reason": "Same category + similar ratings"
}
],
"evidence_summary": {
"index_state": "S1",
"evidence_level": 1,
"level_label": "Live store listing",
"indexable": true,
"last_verified_at": "2026-08-07",
"unknown_fields": [
"Independent summary has not been published yet."
],
"sources": [
"App Store"
]
},
"availability_markets": {
"live": [
"us"
],
"selected": "us",
"note": null
},
"feature_events": {
"events": []
},
"features_slice": {
"plans": [
{
"code": "free",
"label": "Free",
"kind": "free",
"status": "inferred",
"prices": [],
"trial": null
}
],
"features": [],
"unknown_features": [],
"data_cutoff": "7 Aug 2026"
}
}
