AppCorpus MCP gives your agent current app data, prices, screens, features and sources.
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GET /api/v3/apps/1433908656
{
"app_id": 1433908656,
"canonical_url": "https://appcorpus.com/apps/bass-tuner-bt1-1433908656",
"identity": {
"name": "Bass Tuner BT1",
"slug": "bass-tuner-bt1",
"developer": {
"name": "Bijoy Thangaraj",
"url": "https://appcorpus.com/developers/bijoy-thangaraj-developer_87debf2ef89237e5212e5c36b97260a6"
},
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"stores": [
"apple"
],
"platforms": [
"iphone",
"ipad"
],
"status": {
"state": "active",
"label": "Active",
"last_checked": "2026-08-06",
"last_checked_label": "6 Aug 2026",
"banner": null,
"region_note": null
}
},
"listings": [
{
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"status": "ACTIVE",
"url": "https://apps.apple.com/us/app/bass-tuner-bt1/id1433908656?uo=4",
"rating": 4.6,
"rating_count": 1617,
"formatted_price": "Free",
"is_free": true,
"has_iap": false,
"has_subscription": false,
"version": "3.16",
"updated": "2025-02-17",
"currency": "USD"
}
],
"summary": {
"one_liner": null,
"summary": null,
"best_for": [],
"not_for": [],
"status": "fallback",
"at_a_glance": [
"Free to download"
]
},
"categories": {
"official": [
"Music",
"Utilities"
],
"appcorpus": [
{
"category_id": "music",
"label": "Music",
"url": "https://appcorpus.com/categories/music"
},
{
"category_id": "utilities",
"label": "Utilities",
"url": "https://appcorpus.com/categories/utilities"
}
]
},
"use_cases": [],
"features": [
{
"capability_id": "free_app",
"label": "Free app",
"availability": "yes",
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"scope": null,
"evidence": "Store published"
}
],
"pricing": [
{
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"formatted_price": "Free",
"is_free": true,
"has_iap": false,
"has_subscription": false,
"currency": "USD",
"market": "us",
"last_verified": "2026-08-06",
"rows": [
"Free"
]
}
],
"screens": [
{
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"store": "apple",
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},
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},
{
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"store": "apple",
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"store": "apple",
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{
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"store": "apple",
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"alt": "Bass Tuner BT1 ipad screenshot 6"
},
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"store": "apple",
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"alt": "Bass Tuner BT1 ipad screenshot 7"
},
{
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"store": "apple",
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"alt": "Bass Tuner BT1 ipad screenshot 8"
},
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"store": "apple",
"platform": "ipad",
"alt": "Bass Tuner BT1 ipad screenshot 9"
},
{
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"store": "apple",
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"alt": "Bass Tuner BT1 ipad screenshot 10"
},
{
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"store": "apple",
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"alt": "Bass Tuner BT1 ipad screenshot 11"
},
{
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"store": "apple",
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},
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},
{
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"store": "apple",
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},
{
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"store": "apple",
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"alt": "Bass Tuner BT1 iphone screenshot 15"
},
{
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"store": "apple",
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"alt": "Bass Tuner BT1 iphone screenshot 16"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Bass Tuner BT1 iphone screenshot 17"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Bass Tuner BT1 iphone screenshot 18"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Bass Tuner BT1 iphone screenshot 19"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Bass Tuner BT1 iphone screenshot 20"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Bass Tuner BT1 iphone screenshot 21"
}
],
"ratings": [
{
"store": "apple",
"average": 4.6,
"count": 1617,
"market": "us",
"observed_at": "2026-08-06",
"reviews": [
{
"rating": 5,
"title": "Bass student",
"body": "I’ve just started learning the double bass and struggled with a clip-on tuner to find my pitches. This app is EXACTLY what I needed. It’s simple, tracks extremely well, it has an attractive screen (the “signal line” inside the color bands is a great feature! You can really nail down your intonation) and the full screen makes it SO easy to see from a distance. And yes, it picks up low tones that a standard tuner just can’t seem to handle. Another reviewer mention the app picking up background noise. It does, but I imagine that comes with making it sensitive to low frequency. Something to be aware of. All in all, a solid app! Get it!",
"author": "J00000008",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "Amazing",
"body": "This app works fantastically and can work for any occasion straight out of the box, it also has little features that helps you tweak things to be perfect. Also from what I’ve seen most of the bad reviews are uninformed or very situational, this is a tuning app and if you know what notes your tuning too it works amazingly.",
"author": "Trigatory",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "Great for long tone exercises on winds and brass",
"body": "I started using this with my Bari sax and am now using it on my other saxophones too. The tuner makes it very easy to see any pitch fluctuations as you’re playing. It also doesn’t freeze up like some other well known tuning apps. Highly recommend trying it. Free version works great!",
"author": "jonbopper",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "Best $5 I’ve Spent for a Tuner App!",
"body": "I’ve tried all the tuner apps over the years. BT1 is the absolute best one because of it’s dead simple design. Big and easy to see whether you’re in tune, without needing to toggle through anything. Brilliant! I can’t emphasize how grest this app is and recommend buying the $5 pro version. 👏👏👏",
"author": "Travis Owen",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "Accurate, and works on many instruments!",
"body": "I have been using this for not only bass, but with all my guitars! Don’t worry that it’s only for bass, because it works amazingly on regular guitar too! If you are planning to get a tuner, then I recommend this one more than any other I have used! 👍",
"author": "Common Roblox player",
"date": "6 Aug 2026"
}
]
}
],
"privacy": [
{
"store": "apple",
"declarations": [
{
"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 — Location — Coarse Location",
"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": "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 Not Linked to You",
"detail": "Analytics — Diagnostics — Crash Data",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Third-Party Advertising — Diagnostics — Crash Data",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Diagnostics",
"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",
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}
],
"accessibility": []
}
],
"changes": [
{
"store": "apple",
"version": "1.0",
"released_at": null,
"notes": ""
},
{
"store": "apple",
"version": "1.0.1",
"released_at": null,
"notes": "Improvements in the tuning algorithm - Now you can tune instruments with even lower frequencies than the human audible range."
},
{
"store": "apple",
"version": "1.1",
"released_at": null,
"notes": "Minor performance improvements."
},
{
"store": "apple",
"version": "1.1.1",
"released_at": null,
"notes": "Updated the app icon to show more contrast on the red bar that differentiates the free version of Bass Tuner BT1 from the Pro version."
},
{
"store": "apple",
"version": "1.2",
"released_at": null,
"notes": "- Minor improvements in the user interface. - Added support for dark mode."
},
{
"store": "apple",
"version": "1.3",
"released_at": null,
"notes": "Fixed a bug that caused issues with the app's normal functioning when used with Bluetooth devices."
},
{
"store": "apple",
"version": "1.4",
"released_at": null,
"notes": "Fixed a bug that caused a crash in iOS 9 devices."
},
{
"store": "apple",
"version": "3.13",
"released_at": null,
"notes": "This update contains minor stability and performance improvements."
},
{
"store": "apple",
"version": "3.13.1",
"released_at": null,
"notes": "Fixed an issue with the tone generator."
},
{
"store": "apple",
"version": "3.14",
"released_at": null,
"notes": "Framework and security updates."
},
{
"store": "apple",
"version": "3.14.1",
"released_at": null,
"notes": "Framework and security updates."
},
{
"store": "apple",
"version": "3.14.2",
"released_at": null,
"notes": "Framework and security updates."
},
{
"store": "apple",
"version": "3.14.3",
"released_at": null,
"notes": "Framework and security updates."
},
{
"store": "apple",
"version": "3.14.4",
"released_at": null,
"notes": "Framework and security updates."
},
{
"store": "apple",
"version": "3.14.5",
"released_at": null,
"notes": "Framework and security updates."
},
{
"store": "apple",
"version": "3.15",
"released_at": null,
"notes": "• Improvements to the tuning algorithm • User interface improvements • Support for additional languages"
},
{
"store": "apple",
"version": "3.15.1",
"released_at": null,
"notes": "Framework and security updates."
},
{
"store": "apple",
"version": "3.16",
"released_at": "2025-02-17",
"notes": "Framework and security updates."
}
],
"alternatives": [
{
"app_id": 6450222155,
"name": "Bass Tuner - LikeTones",
"url": "https://appcorpus.com/apps/bass-tuner-liketones-6450222155",
"reason": "Same category + similar ratings"
},
{
"app_id": 1107017950,
"name": "Fender Tune: Guitar Tuner App",
"url": "https://appcorpus.com/apps/fender-tune-guitar-tuner-app-1107017950",
"reason": "Same category + similar ratings"
},
{
"app_id": 1438248122,
"name": "Tuner Pro: Guitar Tuner & Tab",
"url": "https://appcorpus.com/apps/tuner-pro-guitar-tuner-tab-1438248122",
"reason": "Same category + similar ratings"
},
{
"app_id": 399211291,
"name": "Songsterr Tabs & Chords",
"url": "https://appcorpus.com/apps/songsterr-tabs-chords-399211291",
"reason": "Same category + similar ratings"
},
{
"app_id": 1090819417,
"name": "Guitar Tuner: Bass and Ukulele",
"url": "https://appcorpus.com/apps/guitar-tuner-bass-and-ukulele-1090819417",
"reason": "Same category + similar ratings"
},
{
"app_id": 1457541750,
"name": "Pitched Tuner - Tuning App",
"url": "https://appcorpus.com/apps/pitched-tuner-tuning-app-1457541750",
"reason": "Same category + similar ratings"
}
],
"evidence_summary": {
"index_state": "S1",
"evidence_level": 1,
"level_label": "Live store listing",
"indexable": true,
"last_verified_at": "2026-08-06",
"unknown_fields": [
"Independent summary has not been published yet."
],
"sources": [
"App Store"
]
},
"availability_markets": {
"live": [
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],
"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": "6 Aug 2026"
}
}
