AppCorpus MCP gives your agent current app data, prices, screens, features and sources.
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GET /api/v3/apps/1413511646
{
"app_id": 1413511646,
"canonical_url": "https://appcorpus.com/apps/acoustic-tuner-1413511646",
"identity": {
"name": "Acoustic Tuner",
"slug": "acoustic-tuner",
"developer": {
"name": "Fredrik Blank",
"url": "https://appcorpus.com/developers/fredrik-blank-developer_e242f274e20589b567df069a096488d8"
},
"icon_url": "https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/2c/83/96/2c839660-285e-79d4-562e-a5aacd353978/AppIconV2-0-0-1x_U007epad-0-1-85-220.png/512x512bb.jpg",
"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": [
{
"store": "apple",
"status": "ACTIVE",
"url": "https://apps.apple.com/us/app/acoustic-tuner/id1413511646?uo=4",
"rating": 3.9,
"rating_count": 306,
"formatted_price": "Free",
"is_free": true,
"has_iap": false,
"has_subscription": false,
"version": "2025.1",
"updated": "2025-09-18",
"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",
"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": "2026-08-06",
"rows": [
"Free"
]
}
],
"screens": [
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/72/48/92/724892f7-9ccd-b606-e7f2-15423dbf643f/ac0c1ce4-1260-4ee0-97b8-43cec02d43ce_guitar-tuner-ipad-good.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Acoustic Tuner ipad screenshot 1"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/1c/83/e0/1c83e02f-3b6d-ed2a-c9e5-febbf847c9d2/64a8616b-1575-4fb9-9b1b-b3ae14eb6915_guitar-tuner-ipad-good.png/576x768bb.png",
"store": "apple",
"platform": "ipad",
"alt": "Acoustic Tuner ipad screenshot 2"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/ad/74/ae/ad74ae64-7529-b904-d001-c90b98b7fa5b/a67684f4-8146-44e8-8f66-18fb3e0931b3_guitar-tuner-ipad-low.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Acoustic Tuner ipad screenshot 3"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/31/b6/3e/31b63eb0-1fd3-eb17-0054-8e13c7fef1a8/0c738281-64e0-46ba-bc96-70278ba984f2_guitar-tuner-ipad-low.png/576x768bb.png",
"store": "apple",
"platform": "ipad",
"alt": "Acoustic Tuner ipad screenshot 4"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/45/db/5a/45db5a0c-cb87-2c64-a7cd-b80aea3495e1/5f7c31d0-2c1b-438d-aa7c-be7eec5880ec_guitar-tuner-ipad-high.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Acoustic Tuner ipad screenshot 5"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/ed/52/d5/ed52d5b5-1151-11b3-8d6a-f2d5aaefebb6/8ae1338c-0a51-4905-9ff0-6781bb55e181_guitar-tuner-ipad-high.png/576x768bb.png",
"store": "apple",
"platform": "ipad",
"alt": "Acoustic Tuner ipad screenshot 6"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/5d/4d/60/5d4d6093-3167-a2d9-ea35-035721da8cf6/cb14797e-d15e-4d76-9af7-dea19de4fffe_guitar-tuner-max-good.png/1284x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Acoustic Tuner iphone screenshot 7"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/b9/5b/5e/b95b5e35-7267-e608-2700-62e19902b24b/549d30fc-d931-47cd-aaf1-7fcb9e15d9ee_guitar-tuner-max-low.png/1284x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Acoustic Tuner iphone screenshot 8"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/1c/c7/e4/1cc7e451-8e72-815c-ab41-aa69594ca27b/b143a701-3585-4cc0-b5b7-d1b1fb721056_guitar-tuner-max-high.png/1284x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Acoustic Tuner iphone screenshot 9"
}
],
"ratings": [
{
"store": "apple",
"average": 3.9,
"count": 306,
"market": "us",
"observed_at": "2026-08-06",
"reviews": [
{
"rating": 5,
"title": "Don Deo, (Mister Fingers)",
"body": "This helps the player to tune its ear. The ultimate goal is to make the best tune without no help just the sound in your mind. I saw this talent in a old man who constructed acoustic guitars and after a long time making them and in a rush for a musician who needed one he lost his left hand fingers only the thumb was left after passing a piece of beautiful wood on a desk rotary saw. After that tragic event, people thought that it was it for Don Deo, but we were wrong he kept making beautiful guitars and when he was finish with one he tune the guitar amazingly only by ear. Truth story by US Army retired SFC Aponte Alfredo",
"author": "Capt. Aponte El negrolo",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "A fully accessible guitar tuner!",
"body": "As a totally blind musician, I've been looking for a tuner that is accessible with Voiceover. Your Acoustic Tuner app fits the bill! I purposefully didn't allow access to the microphone, because my ear is all I need! And everything is accurately labeled and clearly spoken by Voiceover! I highly recommend that blind and visually impaired musicians get this app!",
"author": "Angela_KM4FCF",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "I like that it respects privacy!",
"body": "I was searching for a simple guitar tuner that wasn’t going to access my contacts or track me across apps so that I could keep it installed between uses. This one seems to do the trick, and I’m happy with what I found. Thank you!!!!",
"author": "L. Silver",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "Simple",
"body": "When I hold my phone against my guitar and use this tuner the wavelengths are incredibly easy to hear, even with the messed up hearing that I have. Instead of lining up visual effects to tune, a natural waveform is created that produces very accurate results when you hear it against the pitch of the string. Easy.",
"author": "luv2ping",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "Great tuner",
"body": "I love this tuner! I don’t really know how to tune my guitar and this app made it very simple and fast. Before it would take me 10 minutes, now it takes me two. Thank you!",
"author": "Death of a Dream",
"date": "6 Aug 2026"
}
]
}
],
"privacy": [
{
"store": "apple",
"declarations": [
{
"title": "Data Not Linked to You",
"detail": "Third-Party Advertising — Identifiers — Device ID",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Identifiers",
"source": "Developer declared"
}
],
"accessibility": []
}
],
"changes": [
{
"store": "apple",
"version": "2019.7",
"released_at": null,
"notes": "Bug fixes"
},
{
"store": "apple",
"version": "2019.8",
"released_at": null,
"notes": "Note frequency is now visible!"
},
{
"store": "apple",
"version": "2020.1",
"released_at": null,
"notes": "Stability improvements"
},
{
"store": "apple",
"version": "2020.2",
"released_at": null,
"notes": "Added tuning D Standard (Whole Step Down)"
},
{
"store": "apple",
"version": "2020.3",
"released_at": null,
"notes": "Microphone sensitivity fix + some minor tweaks"
},
{
"store": "apple",
"version": "2020.4",
"released_at": null,
"notes": "Added tuning: \"New Standard\" (CGDAEG)"
},
{
"store": "apple",
"version": "2020.5",
"released_at": null,
"notes": "Fix: Prevent the screen from going to sleep while tuning your guitar"
},
{
"store": "apple",
"version": "2020.6",
"released_at": null,
"notes": "Thank you for using Acoustic Tuner - Added support info - Tweaks and fixes"
},
{
"store": "apple",
"version": "2020.7",
"released_at": null,
"notes": "Thank you for using Acoustic Tuner In this version, some iOS 14 tweaks were made."
},
{
"store": "apple",
"version": "2020.8",
"released_at": null,
"notes": "- Tweaked the frequency checker - Design fixes"
},
{
"store": "apple",
"version": "2021.1",
"released_at": null,
"notes": "Happy New Year - Reset UI after each frequency update - Minor layout fixes"
},
{
"store": "apple",
"version": "2021.2",
"released_at": null,
"notes": "This version comes with a new audio engine Appreciate all feedback!"
},
{
"store": "apple",
"version": "2021.3",
"released_at": null,
"notes": "- Clearer tuning info - UI fix"
},
{
"store": "apple",
"version": "2021.4",
"released_at": null,
"notes": "Updated underlying audio engine"
},
{
"store": "apple",
"version": "2021.5",
"released_at": null,
"notes": "Updated UI to support iOS 15"
},
{
"store": "apple",
"version": "2022.1",
"released_at": null,
"notes": "Thanks for using Acoustic Tuner This version contains an underlying audio engine update"
},
{
"store": "apple",
"version": "2022.2",
"released_at": null,
"notes": "Bug fixes"
},
{
"store": "apple",
"version": "2022.3",
"released_at": null,
"notes": "Updates to the underlying audio engine"
},
{
"store": "apple",
"version": "2022.4",
"released_at": null,
"notes": "Enhancements (new devices)"
},
{
"store": "apple",
"version": "2022.5",
"released_at": null,
"notes": "Fixed a few small issues"
}
],
"alternatives": [
{
"app_id": 1553432239,
"name": "Guitar Tuner＋",
"url": "https://appcorpus.com/apps/guitar-tuner-1553432239",
"reason": "Same category + similar ratings"
},
{
"app_id": 6444131285,
"name": "Simple Tuner - Guitar Tuner",
"url": "https://appcorpus.com/apps/simple-tuner-guitar-tuner-6444131285",
"reason": "Same category + similar ratings"
},
{
"app_id": 588151563,
"name": "Acoustic Guitar Tuner Basic",
"url": "https://appcorpus.com/apps/acoustic-guitar-tuner-basic-588151563",
"reason": "Same category + similar ratings"
},
{
"app_id": 1546894160,
"name": "LunaTuna - Guitar Tuner",
"url": "https://appcorpus.com/apps/lunatuna-guitar-tuner-1546894160",
"reason": "Same category + similar ratings"
},
{
"app_id": 1147429690,
"name": "Classical Guitar Tuner Basic",
"url": "https://appcorpus.com/apps/classical-guitar-tuner-basic-1147429690",
"reason": "Same category + similar ratings"
},
{
"app_id": 423214938,
"name": "Guitar Tuner - Chromatic",
"url": "https://appcorpus.com/apps/guitar-tuner-chromatic-423214938",
"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": [
"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": "6 Aug 2026"
}
}
