AppCorpus MCP gives your agent current app data, prices, screens, features and sources.
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GET /api/v3/apps/6450872567
{
"app_id": 6450872567,
"canonical_url": "https://appcorpus.com/apps/keydays-day-counter-tracker-6450872567",
"identity": {
"name": "KeyDays：Day Counter & Tracker",
"slug": "keydays-day-counter-tracker",
"developer": {
"name": "炜东 黄",
"url": "https://appcorpus.com/developers/developer-556-developer_5b4e254c95103d600fcf1e4e6420553c"
},
"icon_url": "https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/1f/f6/e8/1ff6e8e0-b719-c0b7-6c0b-035f443690eb/AppIcon-0-0-1x_U007epad-0-1-85-220.jpeg/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/keydays-day-counter-tracker/id6450872567?uo=4",
"rating": 5.0,
"rating_count": 25,
"formatted_price": "Free",
"is_free": true,
"has_iap": true,
"has_subscription": false,
"version": "3.11.0",
"updated": "2026-07-30",
"currency": "USD"
}
],
"summary": {
"one_liner": null,
"summary": null,
"best_for": [],
"not_for": [],
"status": "fallback",
"at_a_glance": [
"From $0.41/mo",
"Free to download",
"In-app purchases"
]
},
"categories": {
"official": [
"Lifestyle",
"Productivity"
],
"appcorpus": [
{
"category_id": "lifestyle",
"label": "Lifestyle",
"url": "https://appcorpus.com/categories/lifestyle"
},
{
"category_id": "productivity",
"label": "Productivity",
"url": "https://appcorpus.com/categories/productivity"
}
]
},
"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": "2026-08-06",
"rows": [
"Annual — $4.99/year ($0.41/mo)",
"Coffee — $2.99",
"Lifetime + — $9.99",
"Lifetime + — $14.99"
]
}
],
"screens": [
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/af/9f/03/af9f03d3-edeb-9f24-2ff5-eec7cd069e75/7253a8c6-69f3-43bf-a215-1ad7b3d149cf_iPad-en-01.jpg/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "KeyDays：Day Counter & Tracker ipad screenshot 1"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/6d/ca/2c/6dca2c3b-a79a-1328-9b2a-3a9da6b3fc4e/3a1ee133-744d-49a9-b310-c092e2a13818_iPad-en-01.jpg/552x414bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "KeyDays：Day Counter & Tracker ipad screenshot 2"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/c5/60/db/c560db71-25dc-2dcf-3bdd-09c325f8985a/iPad-en-02.jpg/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "KeyDays：Day Counter & Tracker ipad screenshot 3"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/fe/eb/7b/feeb7ba8-c6cf-7396-a442-324850959599/e6712df5-7873-4400-9f82-efb1e9b541f4_iPad-en-02.jpg/552x414bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "KeyDays：Day Counter & Tracker ipad screenshot 4"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d5/55/46/d555460c-7fda-9c98-48be-8ab4529d9507/7c38e478-2332-4375-8c27-0cb0b0730a7a_iPad-en-03.jpg/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "KeyDays：Day Counter & Tracker ipad screenshot 5"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/5d/3f/84/5d3f8460-36d1-a765-8674-8c7c2f0e045b/0c056c97-3488-4e54-9420-9f57537deafe_iPad-en-03.jpg/552x414bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "KeyDays：Day Counter & Tracker ipad screenshot 6"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/3b/b1/72/3bb172f6-0bdb-9582-48d3-d01b83368db4/1242_2688-en-04.jpg/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "KeyDays：Day Counter & Tracker iphone screenshot 7"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/df/e0/82/dfe08205-5105-05e6-c108-7a36f02e0da6/1242_2688-en-03.jpg/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "KeyDays：Day Counter & Tracker iphone screenshot 8"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b8/7d/80/b87d8075-9cc0-6230-d212-44311b640b5b/1242_2688-en-01.jpg/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "KeyDays：Day Counter & Tracker iphone screenshot 9"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/20/f1/0c/20f10c32-6c38-517e-3db4-2bbd2705f46e/1242_2688-en-02.jpg/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "KeyDays：Day Counter & Tracker iphone screenshot 10"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/98/25/5a/98255a0b-9921-8f73-d261-7bba7da95616/1242_2688-en-05.jpg/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "KeyDays：Day Counter & Tracker iphone screenshot 11"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ed/1a/7b/ed1a7bae-25b8-f3ff-6c43-5fe6eb2a72dd/1242_2688-en-00.jpg/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "KeyDays：Day Counter & Tracker iphone screenshot 12"
}
],
"ratings": [
{
"store": "apple",
"average": 5.0,
"count": 25,
"market": "us",
"observed_at": "2026-08-06",
"reviews": [
{
"rating": 5,
"title": "小而美的软件",
"body": "可以做到简洁又功能齐全。",
"author": "Yumm1-",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "一个小建议",
"body": "界面很简洁美观 功能也够用 作者可以考虑上架macOS吗 在MacBook上很难找到平替",
"author": "momo_0103",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "界面交互都做的挺好",
"body": "赞赞赞",
"author": "Brady_Justin",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "太好了",
"body": "就是能不能会员是免费的pls",
"author": "2o06",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "精美绝伦的设计",
"body": "漂亮的UI，好听的声音，美！",
"author": "大测试员007",
"date": "6 Aug 2026"
}
]
}
],
"privacy": [
{
"store": "apple",
"declarations": [
{
"title": "Data Not Collected",
"detail": "",
"source": "Developer declared"
}
],
"accessibility": []
}
],
"changes": [
{
"store": "apple",
"version": "3.10.0",
"released_at": null,
"notes": "◎ Supports setting separate holiday colors for the Calendar Wallpaper and Calendar Widget."
},
{
"store": "apple",
"version": "3.10.1",
"released_at": null,
"notes": "◎ Fixed a bug where the countdown widget did not filter out archived events."
},
{
"store": "apple",
"version": "3.10.2",
"released_at": null,
"notes": "◎ UI improvements and bug fixes."
},
{
"store": "apple",
"version": "3.11.0",
"released_at": "2026-07-30",
"notes": "◎ Added milestones for both countdown and count-up events. ◎ Fixed an issue where certain home screen widgets were displaying incorrectly."
},
{
"store": "apple",
"version": "3.3.1",
"released_at": null,
"notes": "◎ You can now hide emojis in the multi countdown / count-up events widget. ◎ Bug fixes."
},
{
"store": "apple",
"version": "3.3.2",
"released_at": null,
"notes": "◎ Improved layout adaptation for iPad. ◎ Brand new design of the Life Progress widget. ◎ Added dark mode support for the \"Sunset\" style app icon. ◎ Bug fixes."
},
{
"store": "apple",
"version": "3.3.3",
"released_at": null,
"notes": "◎ Tiny bug fixes."
},
{
"store": "apple",
"version": "3.3.4",
"released_at": null,
"notes": "◎ Now the countdown events list is sorted in ascending order by days remaining. ◎ Bug fixes."
},
{
"store": "apple",
"version": "3.4.0",
"released_at": null,
"notes": "◎ Now you can set a photo as your calendar wallpaper background."
},
{
"store": "apple",
"version": "3.5.0",
"released_at": null,
"notes": "◎ Calendar wallpapers now support showing your countdown events. ◎ Daily Cost now lets you add an end date for each item. ◎ Added new black and white theme colors."
},
{
"store": "apple",
"version": "3.6.0",
"released_at": null,
"notes": "◎ Now you can archive countdown/count-up/daily cost events. ◎ Available to share daily cost events. ◎ Bug fixes."
},
{
"store": "apple",
"version": "3.6.1",
"released_at": null,
"notes": "◎ Plugged a loophole in the premium Calendar Wallpaper feature. ◎ Fixed a sorting issue on the countdown events list page."
},
{
"store": "apple",
"version": "3.6.2",
"released_at": null,
"notes": "◎ Fixed an issue where the events list did not refresh in time after adding or deleting events. ◎ Thanks to @Chester215hqz for the helpful feedback."
},
{
"store": "apple",
"version": "3.7.0",
"released_at": null,
"notes": "◎ Bug fix."
},
{
"store": "apple",
"version": "3.7.1",
"released_at": null,
"notes": "◎ Bug fix."
},
{
"store": "apple",
"version": "3.7.2",
"released_at": null,
"notes": "◎ Bug fix, and wishing you a wonderful April!"
},
{
"store": "apple",
"version": "3.8.0",
"released_at": null,
"notes": "◎ Now you can customize the background colors of your Home Screen widgets. ◎ You can also choose where the calendar appears on your wallpaper."
},
{
"store": "apple",
"version": "3.8.1",
"released_at": null,
"notes": "◎ Fixed an issue where the calendar could shift on the calendar wallpaper."
},
{
"store": "apple",
"version": "3.8.2",
"released_at": null,
"notes": "◎ Bug fixes."
},
{
"store": "apple",
"version": "3.9.0",
"released_at": null,
"notes": "◎ Now you can add a customizable home screen calendar widget. ◎ Plus an improved Home UI."
}
],
"alternatives": [],
"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": "plan",
"label": "Annual",
"kind": "subscription",
"status": "store_listed",
"prices": [
{
"storefront": "us",
"formatted": "$4.99",
"billing_period": "yearly"
}
],
"trial": null
},
{
"code": "coffee",
"label": "Coffee",
"kind": "unknown",
"status": "store_listed",
"prices": [
{
"storefront": "us",
"formatted": "$2.99",
"billing_period": null
}
],
"trial": null
},
{
"code": "lifetime",
"label": "Lifetime +",
"kind": "unknown",
"status": "store_listed",
"prices": [
{
"storefront": "us",
"formatted": "$14.99",
"billing_period": "one_time"
},
{
"storefront": "us",
"formatted": "$9.99",
"billing_period": "one_time"
}
],
"trial": null
}
],
"features": [],
"unknown_features": [],
"data_cutoff": "6 Aug 2026"
}
}
