AppCorpus MCP gives your agent current app data, prices, screens, features and sources.
View JSON
GET /api/v3/apps/364009203
{
"app_id": 364009203,
"canonical_url": "https://appcorpus.com/apps/polytune-364009203",
"identity": {
"name": "PolyTune",
"slug": "polytune",
"developer": {
"name": "TC Electronic",
"url": "https://appcorpus.com/developers/tc-electronic-developer_407c225db0e95c98966f8d87e6f178e9"
},
"icon_url": "https://is1-ssl.mzstatic.com/image/thumb/Purple111/v4/1c/ba/23/1cba23a4-51c9-24a1-ed0b-85cf1f16c97f/pr_source.png/512x512bb.jpg",
"stores": [
"apple"
],
"platforms": [
"iphone",
"ipad"
],
"status": {
"state": "abandoned-risk",
"label": "Abandoned risk",
"last_checked": "2026-07-29",
"last_checked_label": "29 Jul 2026",
"banner": null,
"region_note": null
}
},
"listings": [
{
"store": "apple",
"status": "ACTIVE",
"url": "https://apps.apple.com/us/app/polytune/id364009203?uo=4",
"rating": 2.8,
"rating_count": 79,
"formatted_price": "$4.99",
"is_free": false,
"has_iap": false,
"has_subscription": false,
"version": "2.0.0",
"updated": "2017-01-13",
"currency": "USD"
}
],
"summary": {
"one_liner": null,
"summary": null,
"best_for": [],
"not_for": [],
"status": "fallback",
"at_a_glance": [
"$4.99"
]
},
"categories": {
"official": [
"Music"
],
"appcorpus": [
{
"category_id": "music",
"label": "Music",
"url": "https://appcorpus.com/categories/music"
}
]
},
"use_cases": [],
"features": [
{
"capability_id": "family_sharing",
"label": "Family Sharing",
"availability": "yes",
"access_level": "unknown",
"scope": "App Store",
"evidence": "Store published"
}
],
"pricing": [
{
"store": "apple",
"formatted_price": "$4.99",
"is_free": false,
"has_iap": false,
"has_subscription": false,
"currency": "USD",
"market": "us",
"last_verified": "2026-07-29",
"rows": [
"Price: $4.99"
]
}
],
"screens": [
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple91/v4/66/7d/19/667d19c0-68f3-e4ad-066a-0078ee0f52ad/pr_source.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "PolyTune ipad screenshot 1"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple122/v4/69/aa/ca/69aaca06-a810-cf65-dffd-0766556fb355/pr_source.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "PolyTune iphone screenshot 2"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple111/v4/43/e3/1b/43e31bc2-2dd3-a061-8867-053b4014fa2a/pr_source.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "PolyTune iphone screenshot 3"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple111/v4/df/e7/24/dfe72479-1145-3253-0266-ecf9564e6e28/pr_source.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "PolyTune iphone screenshot 4"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple111/v4/24/1c/44/241c44d1-0654-390d-2f1c-c9e8ba16adee/pr_source.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "PolyTune iphone screenshot 5"
}
],
"ratings": [
{
"store": "apple",
"average": 2.8,
"count": 79,
"market": "us",
"observed_at": "2026-07-29",
"reviews": [
{
"rating": 5,
"title": "Best iOS tuner out there",
"body": "I've had this app since it came out in 2010 and it's actually been the best tuner on iOS the whole time. The accuracy on both the individual and multi string settings (changes based on what you play, not an actual \"setting\") is very close. I just sit the phone on my knee and tune up.",
"author": "Trewlxkck cosoaksjd",
"date": "29 Jul 2026"
},
{
"rating": 5,
"title": "Best iOS guitar tuner",
"body": "I've had a few PolyTune pedal tuners on my pedal board and this app has always been just as good. I didn't think TC would ever update it - it still worked great but looked wrong at the smaller size. This new design looks great and is a welcome update!",
"author": "SixStringBuzz",
"date": "29 Jul 2026"
},
{
"rating": 1,
"title": "New PolyTune update screws up tuner accuracy",
"body": "I've owned this App for years and its worked better than any other tuner on the App store, until it recently auto Updated itself to a new version with new look and function... The new version, is really quite insensitive and non responsive in general and specifically to the lower A and E strings of any acoustic guitar on all my iPhones and iPads including iPhone 7. Do not buy it - Since the company released their new hardware PolyTune clip product, it seems they deliberately dumbed down the App, to encourage the hardware purchase over the App.",
"author": "moody breeze",
"date": "29 Jul 2026"
},
{
"rating": 5,
"title": "Awesome...",
"body": "Awesome app.. seems really accurate, surprisingly so. I have a 30+ years playing bass. Only gripe, screen dims when the app is open. I find myself having to tap the screen in the middle of tuning but aside from that excellent app well worth the purchase. Next buy will be a PolyTune 2 pedal. 😉",
"author": "Primusfan",
"date": "29 Jul 2026"
},
{
"rating": 3,
"title": "No capo functions",
"body": "I'd like to give this five stars, but I capo a lot of times… If it's so easy to add \"de-tuned\" guitar tuning options, why can't they go UP the neck from the regular E tuning, and do the F, F#, G, G#, A... etc. Seems pretty easy to add these features… Look, I know how to tune open and then capo after that, but a lot of times a capo messes with the tuning, usually makes One or two strings go sharp, so I like to tune right through the capo. Any flamenco guitarist would appreciate a capo function...",
"author": "eltalon",
"date": "29 Jul 2026"
}
]
}
],
"privacy": [
{
"store": "apple",
"declarations": [
{
"title": "No Details Provided",
"detail": "",
"source": "Developer declared"
}
],
"accessibility": []
}
],
"changes": [
{
"store": "apple",
"version": "1.0.00",
"released_at": null,
"notes": ""
},
{
"store": "apple",
"version": "1.1.0",
"released_at": null,
"notes": "- colorblind mode - updated graphics with support for retina display"
},
{
"store": "apple",
"version": "2.0.0",
"released_at": "2017-01-13",
"notes": "This update from Apple will improve the functionality of this app. No new features are included. -updated UI -Graphical changes -new icon"
}
],
"alternatives": [
{
"app_id": 304731501,
"name": "Tempo - Metronome with Setlist",
"url": "https://appcorpus.com/apps/tempo-metronome-with-setlist-304731501",
"reason": "Same category + similar ratings"
}
],
"evidence_summary": {
"index_state": "S1",
"evidence_level": 1,
"level_label": "Live store listing",
"indexable": true,
"last_verified_at": "2026-07-29",
"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": [],
"features": [],
"unknown_features": [
"family_sharing"
],
"data_cutoff": "29 Jul 2026"
}
}
