AppCorpus MCP gives your agent current app data, prices, screens, features and sources.
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GET /api/v3/apps/1551925812
{
"app_id": 1551925812,
"canonical_url": "https://appcorpus.com/apps/composer-pro-sheet-music-maker-1551925812",
"identity": {
"name": "Composer Pro-Sheet Music Maker",
"slug": "composer-pro-sheet-music-maker",
"developer": {
"name": "嵩 张",
"url": "https://appcorpus.com/developers/developer-250-developer_8b4617f6a597091ab70e511d72a1a665"
},
"icon_url": "https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/dc/cf/fc/dccffc62-aecb-15c9-b588-173e1ae5a3a7/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/512x512bb.jpg",
"stores": [
"apple"
],
"platforms": [
"iphone",
"ipad"
],
"status": {
"state": "active",
"label": "Active",
"last_checked": "2026-08-05",
"last_checked_label": "5 Aug 2026",
"banner": null,
"region_note": null
}
},
"listings": [
{
"store": "apple",
"status": "ACTIVE",
"url": "https://apps.apple.com/us/app/composer-pro-sheet-music-maker/id1551925812?uo=4",
"rating": 4.5,
"rating_count": 669,
"formatted_price": "Free",
"is_free": true,
"has_iap": true,
"has_subscription": false,
"version": "2.0.3",
"updated": "2026-08-01",
"currency": "USD"
}
],
"summary": {
"one_liner": null,
"summary": null,
"best_for": [],
"not_for": [],
"status": "fallback",
"at_a_glance": [
"Free to download",
"In-app purchases"
]
},
"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"
},
{
"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": "2026-08-05",
"rows": [
"Pro Access — $9.99",
"Pro Access — $49.99",
"Unlimited Access — $6.99"
]
}
],
"screens": [
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/b6/82/00/b6820039-f7d0-3233-ae70-6d122df52891/tns.hdiwkomo.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Composer Pro-Sheet Music Maker ipad screenshot 1"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/ff/a9/44/ffa9447d-6019-d01c-3f81-a49c694ab1fc/977c3071-a2b6-4f8d-8386-fd0c35b425d4_Simulator_Screen_Shot_-_iPad_Pro__U002812.9-inch_U0029__U00285th_generation_U0029_-_2021-12-18_at_18.04.21.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Composer Pro-Sheet Music Maker ipad screenshot 2"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/c6/b9/4b/c6b94b55-7ff4-cf48-881c-a687b6000bdc/69da6807-48e0-4ebd-93c5-29d84c57253d_Simulator_Screen_Shot_-_iPad_Pro__U002812.9-inch_U0029__U00285th_generation_U0029_-_2021-12-18_at_18.08.43.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Composer Pro-Sheet Music Maker ipad screenshot 3"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/31/a6/13/31a613f6-5a88-6930-a964-60f8e4a4d8da/tns.hnnpariw.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Composer Pro-Sheet Music Maker ipad screenshot 4"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/49/04/9e/49049e9c-6afb-a310-cebf-acf4507d4cd5/tns.kuvtcidk.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Composer Pro-Sheet Music Maker ipad screenshot 5"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/62/f9/fb/62f9fbd5-2dc1-238f-2c6d-6a16396231b4/tns.niquuvkj.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Composer Pro-Sheet Music Maker ipad screenshot 6"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/80/dd/c6/80ddc670-b23f-41d0-ca53-a0a2f4a56dfe/tns.oahrdkhi.png/1284x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Composer Pro-Sheet Music Maker iphone screenshot 7"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/f2/34/3b/f2343bd3-9a17-d0e5-b86c-add11b8ecb49/424c0c74-e442-42d6-b372-e1a47ee5c4ac_Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2023-05-29_at_01.37.40.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Composer Pro-Sheet Music Maker iphone screenshot 8"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/71/fd/5e/71fd5e51-8ebc-3c81-d491-1fca5eb94901/aabadb8a-0de2-46c5-b22a-b8c37aaf2173_Simulator_Screen_Shot_-_iPhone_13_Pro_Max_-_2021-12-18_at_17.45.55.png/1284x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Composer Pro-Sheet Music Maker iphone screenshot 9"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/a9/da/5f/a9da5f0a-5603-2494-f660-70feefefa6c5/dcf8be0e-a068-4480-b70e-2502e315bfb4_Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2023-05-29_at_01.38.52.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Composer Pro-Sheet Music Maker iphone screenshot 10"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/ac/b6/6f/acb66ff2-8997-5826-a878-b72a38d07386/tns.uprpvowc.png/1284x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Composer Pro-Sheet Music Maker iphone screenshot 11"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/2c/8c/63/2c8c6327-2fec-5a85-db56-140752249eab/24f2584e-5b22-4d84-a9d0-3d0fe48f7575_Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2023-05-29_at_01.39.23.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Composer Pro-Sheet Music Maker iphone screenshot 12"
}
],
"ratings": [
{
"store": "apple",
"average": 4.5,
"count": 669,
"market": "us",
"observed_at": "2026-08-05",
"reviews": [
{
"rating": 4,
"title": "Amazing app that could use tweaking.",
"body": "This app is incredibly useful and fun. There are so many things to like about it. I only have two requests that would make this app better. 1. Add a percussive line. If we could get percussion instruments like bass drum or a snare drum. Maybe even triangle, tambourine, or wind chimes. While these don’t have notes, they’re still part of an ensemble and it would be really cool. It would be simple. It’s just the notes, no staff. Just one line with whole, half, quarter, eight, and sixteenth notes. 2. Up the limit from 8. Many symphonies and ensembles have more than 10 instruments. If the limit was upped to like 20 or so, it would be a big help and make this app even better.",
"author": "Thisisdefnotausername",
"date": "5 Aug 2026"
},
{
"rating": 4,
"title": "↑↓ buttons requested",
"body": "Could you please, please find a way to squeeze in the \"move (note) up\" and \"move (note) down\" buttons on the keyboard? I'm just this close to becoming a lifetime user, but the absence of that functionality has really brought a lot of pain to my eyeballs Also would you also add the piano keyboard interface? Much faster and more intuitive for chord inputs. I'd pay double for that...",
"author": "Lynne Y. Lee",
"date": "5 Aug 2026"
},
{
"rating": 1,
"title": "Full of bugs missing basic features and no support",
"body": "This app is missing many composing features (no 8va, no dual treble for a few measures, no way to write chords where you hold a single note for longer with different time value other than using dual voices), is filled with bugs and poor interface (it’s so time consuming to change notes or time values after input, dragging the note to change it plays back in the wrong octave, saving and importing file is is broken even though it says feature exists) plus there is no email, no useful website, and no tutorials. Not to mention they want you to pay $364/yr for this crap?!",
"author": "BradWest",
"date": "5 Aug 2026"
},
{
"rating": 5,
"title": "Used it as a quick alternative",
"body": "I was trying to get something down, and I usually use noteflight for all my composing stuff. However, I only had my phone, and it wasn’t working. I downloaded this and I got the hand of it really quickly! It’s really user friendly, and simple to use for quick composing. Definitely gonna be my on-the-go tool for when I’m not around my laptop!",
"author": "WolfWolf587",
"date": "5 Aug 2026"
},
{
"rating": 5,
"title": "Good for the price.",
"body": "This app is good even if you don’t pay, though the adds are annoying. I’m not saying pay though. If you pay this app is really good. However, if you don’t you can’t really do much. My advice unless it’s something casual don’t download unless your prepared to pay. Also don’t worry the adds only come up when you turn it on not as you write music",
"author": "Mr Anonimous Someone",
"date": "5 Aug 2026"
}
]
}
],
"privacy": [
{
"store": "apple",
"declarations": [
{
"title": "Data Not Collected",
"detail": "",
"source": "Developer declared"
}
],
"accessibility": [
{
"title": "Dark Interface",
"detail": "SUPPORTED",
"source": "Store published"
}
]
}
],
"changes": [
{
"store": "apple",
"version": "1.0.0",
"released_at": null,
"notes": ""
},
{
"store": "apple",
"version": "1.0.1",
"released_at": null,
"notes": "- Keep holding on delete button to delete more notes. - Fixed app crashes when adding note."
},
{
"store": "apple",
"version": "1.0.2",
"released_at": null,
"notes": "-add iPad support"
},
{
"store": "apple",
"version": "1.0.3",
"released_at": null,
"notes": "- Various bug fixes and improvements"
},
{
"store": "apple",
"version": "1.0.5",
"released_at": null,
"notes": "- Add floating keyboard on iPad - Bug fixes and improvements"
},
{
"store": "apple",
"version": "1.0.6",
"released_at": null,
"notes": "- Bug fixes and improvements"
},
{
"store": "apple",
"version": "1.0.7",
"released_at": null,
"notes": "- Optimized for iOS 15 - Fixed bugs"
},
{
"store": "apple",
"version": "1.0.8",
"released_at": null,
"notes": "- Add remember octave feature - Fixed Delete button may not touch up - Fixed error with changing note pitch - Fixed undo&redo issue when reoder parts - Fixed selecting is not precise issue - Fixed some display errors in dark mode - Fixed error with note in tuplet"
},
{
"store": "apple",
"version": "1.0.9",
"released_at": null,
"notes": "- Settings of keyboard sound and note preview sound could be set correctly - Playback will start at the beginning when cursor at the end of a score - Now support importing from Files.app - Fixed bugs"
},
{
"store": "apple",
"version": "1.1.0",
"released_at": null,
"notes": "- fixed bugs - improved UI display - reduced ads"
},
{
"store": "apple",
"version": "2.0.0",
"released_at": null,
"notes": "- Adapted to Liquid Glass design"
},
{
"store": "apple",
"version": "2.0.1",
"released_at": null,
"notes": "- Adapted to Liquid Glass design"
},
{
"store": "apple",
"version": "2.0.2",
"released_at": null,
"notes": "- Adapted to Liquid Glass design - Fixed display issues musescore, sibelius, forscore"
},
{
"store": "apple",
"version": "2.0.3",
"released_at": "2026-08-01",
"notes": "- Adapted to Liquid Glass design - Fixed display issues"
}
],
"alternatives": [
{
"app_id": 1503221259,
"name": "Sibelius",
"url": "https://appcorpus.com/apps/sibelius-1503221259",
"reason": "Same category + similar ratings"
}
],
"evidence_summary": {
"index_state": "S1",
"evidence_level": 1,
"level_label": "Live store listing",
"indexable": true,
"last_verified_at": "2026-08-05",
"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": "pro-access",
"label": "Pro Access",
"kind": "unknown",
"status": "store_listed",
"prices": [
{
"storefront": "us",
"formatted": "$49.99",
"billing_period": null
},
{
"storefront": "us",
"formatted": "$9.99",
"billing_period": null
}
],
"trial": null
},
{
"code": "unlimited-access",
"label": "Unlimited Access",
"kind": "unknown",
"status": "store_listed",
"prices": [
{
"storefront": "us",
"formatted": "$6.99",
"billing_period": null
}
],
"trial": null
}
],
"features": [],
"unknown_features": [],
"data_cutoff": "5 Aug 2026"
}
}
