AppCorpus MCP gives your agent current app data, prices, screens, features and sources.
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GET /api/v3/apps/6744358440
{
"app_id": 6744358440,
"canonical_url": "https://appcorpus.com/apps/knot-tying-3d-knottie-6744358440",
"identity": {
"name": "Knot tying 3D - Knottie",
"slug": "knot-tying-3d-knottie",
"developer": {
"name": "Carlos Fernandez Mayor",
"url": "https://appcorpus.com/developers/carlos-fernandez-mayor-developer_4cd541da358f52e6289bfb9806c71931"
},
"icon_url": "https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/75/26/63/75266349-b52f-0fef-47a8-3d14480d710a/knottieIcon-gold-0-0-1x_U007ephone-0-1-0-sRGB-85-220.png/512x512bb.jpg",
"stores": [
"apple"
],
"platforms": [
"iphone"
],
"status": {
"state": "active",
"label": "Active",
"last_checked": "2026-08-07",
"last_checked_label": "7 Aug 2026",
"banner": null,
"region_note": null
}
},
"listings": [
{
"store": "apple",
"status": "ACTIVE",
"url": "https://apps.apple.com/us/app/knot-tying-3d-knottie/id6744358440?uo=4",
"rating": 3.9,
"rating_count": 8,
"formatted_price": "Free",
"is_free": true,
"has_iap": true,
"has_subscription": false,
"version": "1.6",
"updated": "2026-02-01",
"currency": "USD"
}
],
"summary": {
"one_liner": null,
"summary": null,
"best_for": [],
"not_for": [],
"status": "fallback",
"at_a_glance": [
"From $0.99/mo",
"Free to download",
"In-app purchases"
]
},
"categories": {
"official": [
"Reference",
"Education"
],
"appcorpus": [
{
"category_id": "reference",
"label": "Reference",
"url": "https://appcorpus.com/categories/reference"
},
{
"category_id": "education",
"label": "Education",
"url": "https://appcorpus.com/categories/education"
}
]
},
"use_cases": [],
"features": [
{
"capability_id": "family_sharing",
"label": "Family Sharing",
"availability": "yes",
"access_level": "unknown",
"scope": "App Store",
"evidence": "Store published"
},
{
"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": "2026-08-07",
"rows": [
"Monthly — $0.99/month",
"Monthly — $4.99/year ($0.41/mo)",
"Lifetime — $8.99"
]
}
],
"screens": [
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ff/fe/f5/fffef509-99ae-3b8d-a4f3-6dff2f8b92d1/Screenshot_1.png/1320x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Knot tying 3D - Knottie iphone screenshot 1"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f3/ba/38/f3ba386f-99a2-3cea-dfeb-8fdee90fb6c3/Screenshot_2.png/1320x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Knot tying 3D - Knottie iphone screenshot 2"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/05/c0/77/05c07716-7dbb-2cc1-4829-8f0ac843cb4d/Screenshot_3.png/1320x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Knot tying 3D - Knottie iphone screenshot 3"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/99/70/b5/9970b587-21e7-2f7f-ba91-25c1a79b3b67/Screenshot_5.png/1320x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Knot tying 3D - Knottie iphone screenshot 4"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/95/fa/e9/95fae97c-3263-242b-8188-140b0f5cdf41/Screenshot_4.png/1320x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Knot tying 3D - Knottie iphone screenshot 5"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/78/db/ff/78dbff80-d827-6151-8b34-32fb121a9227/Screenshot_6.png/1320x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Knot tying 3D - Knottie iphone screenshot 6"
}
],
"ratings": [
{
"store": "apple",
"average": 3.9,
"count": 8,
"market": "us",
"observed_at": "2026-08-07",
"reviews": [
{
"rating": 3,
"title": "Best to learn knots, but barely works offline",
"body": "I couldn’t wait to get some quality time on a cruise to learn knots. Well, the app requires being online to check access status. When I am online there is access to the knots but offline, knots are locked. It was so frustrating. App also lacks menu contact us etc.",
"author": "PixelRo",
"date": "7 Aug 2026"
},
{
"rating": 5,
"title": "Great!",
"body": "I’ve been wanting to learn knots for awhile but never get too far. This app is fantastic because it shows you all the angles of the knot in 3D. You can zoom in, too! Very pleased with it and hope the dev continues adding knots!",
"author": "HighFiveHellos",
"date": "7 Aug 2026"
},
{
"rating": 5,
"title": "Wonderful app!!",
"body": "This is a phenomenal app that is very useful! I would recommend to anyone wanting to learn how to tie knots in an easy, understandable way! I love how they are categorized too, very user friendly.",
"author": "Spuddymcdude",
"date": "7 Aug 2026"
},
{
"rating": 5,
"title": "Useful",
"body": "Useful app to learn how to tie knots",
"author": "Mʀ.AMiNE",
"date": "7 Aug 2026"
}
]
}
],
"privacy": [
{
"store": "apple",
"declarations": [
{
"title": "Data Not Linked to You",
"detail": "Analytics — Diagnostics — Crash Data",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Analytics — Diagnostics — Performance Data",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Analytics — Identifiers — Device ID",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Analytics — Identifiers — User ID",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Analytics — Purchases — Purchase History",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Analytics — Usage Data — Product Interaction",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "App Functionality — Diagnostics — Crash Data",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "App Functionality — Diagnostics — Performance Data",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "App Functionality — Identifiers — Device ID",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "App Functionality — Identifiers — User ID",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "App Functionality — Purchases — Purchase History",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "App Functionality — Usage Data — Product Interaction",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Diagnostics",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Identifiers",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Purchases",
"source": "Developer declared"
},
{
"title": "Data Not Linked to You",
"detail": "Usage Data",
"source": "Developer declared"
}
],
"accessibility": []
}
],
"changes": [
{
"store": "apple",
"version": "1.0",
"released_at": null,
"notes": ""
},
{
"store": "apple",
"version": "1.0.1",
"released_at": null,
"notes": "We’ve added a short tutorial to help you explore the 3D scene — rotate it with your finger and scrub the timeline like a video."
},
{
"store": "apple",
"version": "1.0.2",
"released_at": null,
"notes": "Bug fixes, speed boosts, and a little extra polish. Enjoy!"
},
{
"store": "apple",
"version": "1.0.3",
"released_at": null,
"notes": "Bug fixes, speed boosts, and a little extra polish. Enjoy!"
},
{
"store": "apple",
"version": "1.5",
"released_at": null,
"notes": "A refreshed design that looks right at home on iOS 26 Spanish localization is now available"
},
{
"store": "apple",
"version": "1.5.1",
"released_at": null,
"notes": "Bug fixes and performance improvements."
},
{
"store": "apple",
"version": "1.6",
"released_at": "2026-02-01",
"notes": "We’ve added 3 new knots! You can now change the animation speed to learn at your own pace. Plus a few UI polish touches and bug fixes."
}
],
"alternatives": [
{
"app_id": 6746566076,
"name": "Knots Tying Guide: KnotSmith",
"url": "https://appcorpus.com/apps/knots-tying-guide-knotsmith-6746566076",
"reason": "Same category + similar ratings"
},
{
"app_id": 1533648624,
"name": "Knot 3D : Learn To Tie Knots",
"url": "https://appcorpus.com/apps/knot-3d-learn-to-tie-knots-1533648624",
"reason": "Same category + similar ratings"
},
{
"app_id": 6472172384,
"name": "Knots Master Pro",
"url": "https://appcorpus.com/apps/knots-master-pro-6472172384",
"reason": "Same category + similar ratings"
},
{
"app_id": 1567528347,
"name": "Knot Tying 3D: Animated Guide",
"url": "https://appcorpus.com/apps/knot-tying-3d-animated-guide-1567528347",
"reason": "Same category + similar ratings"
},
{
"app_id": 6446508160,
"name": "Army Knots",
"url": "https://appcorpus.com/apps/army-knots-6446508160",
"reason": "Same category + similar ratings"
},
{
"app_id": 399947682,
"name": "Knot Guide (Lite)",
"url": "https://appcorpus.com/apps/knot-guide-lite-399947682",
"reason": "Same category + similar ratings"
}
],
"evidence_summary": {
"index_state": "S1",
"evidence_level": 1,
"level_label": "Live store listing",
"indexable": true,
"last_verified_at": "2026-08-07",
"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": "Monthly",
"kind": "subscription",
"status": "store_listed",
"prices": [
{
"storefront": "us",
"formatted": "$0.99",
"billing_period": "monthly"
},
{
"storefront": "us",
"formatted": "$4.99",
"billing_period": "yearly"
}
],
"trial": null
},
{
"code": "lifetime",
"label": "Lifetime",
"kind": "unknown",
"status": "store_listed",
"prices": [
{
"storefront": "us",
"formatted": "$8.99",
"billing_period": "one_time"
}
],
"trial": null
}
],
"features": [],
"unknown_features": [
"family_sharing"
],
"data_cutoff": "7 Aug 2026"
}
}
