AppCorpus MCP gives your agent current app data, prices, screens, features and sources.
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GET /api/v3/apps/6756220989
{
"app_id": 6756220989,
"canonical_url": "https://appcorpus.com/apps/nautical-rules-6756220989",
"identity": {
"name": "Nautical Rules",
"slug": "nautical-rules",
"developer": {
"name": "Joseph Kim",
"url": "https://appcorpus.com/developers/joseph-kim-developer_014179b78ce4d0cf6788ad526af49a11"
},
"icon_url": "https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/d5/9b/81/d59b8156-fa2f-c28c-3205-c4833de7f54a/AppIcon-0-0-1x_U007epad-0-1-85-220.png/512x512bb.jpg",
"stores": [
"apple"
],
"platforms": [
"iphone",
"ipad"
],
"status": {
"state": "active",
"label": "Active",
"last_checked": "2026-07-31",
"last_checked_label": "31 Jul 2026",
"banner": null,
"region_note": null
}
},
"listings": [
{
"store": "apple",
"status": "ACTIVE",
"url": "https://apps.apple.com/us/app/nautical-rules/id6756220989?uo=4",
"rating": 5.0,
"rating_count": 12,
"formatted_price": "Free",
"is_free": true,
"has_iap": false,
"has_subscription": false,
"version": "2.2",
"updated": "2026-01-20",
"currency": "USD"
}
],
"summary": {
"one_liner": null,
"summary": null,
"best_for": [],
"not_for": [],
"status": "fallback",
"at_a_glance": [
"Free to download"
]
},
"categories": {
"official": [
"Navigation",
"Education"
],
"appcorpus": [
{
"category_id": "navigation",
"label": "Navigation",
"url": "https://appcorpus.com/categories/navigation"
},
{
"category_id": "education",
"label": "Education",
"url": "https://appcorpus.com/categories/education"
}
]
},
"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": "2026-07-31",
"rows": [
"Free"
]
}
],
"screens": [
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/fc/0b/6f/fc0b6f20-fb58-1661-0d01-fa81efedee68/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M4_U0029_-_2025-12-30_at_17.04.54.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Nautical Rules ipad screenshot 1"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/71/1d/c5/711dc58a-fd40-5f01-f6f3-55e906893474/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M4_U0029_-_2025-12-30_at_17.05.24.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Nautical Rules ipad screenshot 2"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/2d/ff/76/2dff76c5-6750-fc24-bac2-e0984e1a65fd/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M4_U0029_-_2025-12-30_at_17.05.30.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Nautical Rules ipad screenshot 3"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/e3/99/bc/e399bc33-6a78-8feb-81c1-a976113904bb/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M4_U0029_-_2025-12-30_at_17.05.04.png/1600x1600bb.jpg",
"store": "apple",
"platform": "ipad",
"alt": "Nautical Rules ipad screenshot 4"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Nautical Rules ipad screenshot 5"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/51/83/dd/5183dd59-7193-2863-a59c-fc028548236f/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2025-12-30_at_17.01.21.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Nautical Rules iphone screenshot 6"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ed/0b/0e/ed0b0efc-f758-f834-83fb-bb73ec55ba1e/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2025-12-30_at_17.02.13.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Nautical Rules iphone screenshot 7"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/96/71/6b/96716bdb-1ca9-81bd-f08a-a99588b569de/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2025-12-30_at_17.02.31.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Nautical Rules iphone screenshot 8"
},
{
"url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d2/f3/d1/d2f3d14e-b1d2-4566-eb45-e4ec31fa718b/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2025-12-30_at_17.01.48.png/1242x1600bb.jpg",
"store": "apple",
"platform": "iphone",
"alt": "Nautical Rules iphone screenshot 9"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Nautical Rules iphone screenshot 10"
}
],
"ratings": [
{
"store": "apple",
"average": 5.0,
"count": 12,
"market": "us",
"observed_at": "2026-07-31",
"reviews": [
{
"rating": 5,
"title": "Best rules of the road app",
"body": "By far the best app to study the COLREGS rules of the road. Perfect for SWO’s.",
"author": "kpost23",
"date": "31 Jul 2026"
},
{
"rating": 5,
"title": "Best way to learn nav rules",
"body": "This app was way easier to learn ROR than the other nav apps",
"author": "Andrew Hemberger",
"date": "31 Jul 2026"
},
{
"rating": 5,
"title": "Simple USCG Rules of the Road Quiz App. Everything You Need",
"body": "If you’re looking to practice USCG ROR questions, this is a great app. Even provides explanations for each question. You can also export tests into PDF so you can send it to a Navigator for proof",
"author": "adelgado9",
"date": "31 Jul 2026"
},
{
"rating": 5,
"title": "Must have app for any mariner!",
"body": "The best Rules of the Road app I’ve seen to date! It’s much better than any of the current, slightly outdated and not-so-user-friendly apps out there. It has your typical 50 question practice tests, as well as each individual section broken down, so you can practice on just the sections you need!",
"author": "Ian J 1110",
"date": "31 Jul 2026"
},
{
"rating": 5,
"title": "Great app",
"body": "Super clear design compared to the other apps - love how it breaks down so you can do questions per each rule",
"author": "Dan000009",
"date": "31 Jul 2026"
}
]
}
],
"privacy": [
{
"store": "apple",
"declarations": [
{
"title": "Data Not Collected",
"detail": "",
"source": "Developer declared"
}
],
"accessibility": []
}
],
"changes": [
{
"store": "apple",
"version": "1.0",
"released_at": null,
"notes": ""
},
{
"store": "apple",
"version": "2.0",
"released_at": null,
"notes": "- Focus Area in the Home Page based on Test Results - Ability to organize Practice Mode through Category or Rule - Rule Stats on the Progress Page"
},
{
"store": "apple",
"version": "2.1",
"released_at": null,
"notes": "- Improved Activity tab with date/time stamps for test history - Fixed \"Rate on App Store\" button - Standardized terminology throughout the app - Bug fixes and code improvements"
},
{
"store": "apple",
"version": "2.2",
"released_at": "2026-01-20",
"notes": "- Improved test history review experience - Minor performance optimizations"
}
],
"alternatives": [
{
"app_id": 1534074231,
"name": "Nautical Calculator Preview",
"url": "https://appcorpus.com/apps/nautical-calculator-preview-1534074231",
"reason": "Same category + similar ratings"
},
{
"app_id": 1569880598,
"name": "Celestial Nav",
"url": "https://appcorpus.com/apps/celestial-nav-1569880598",
"reason": "Same category + similar ratings"
}
],
"evidence_summary": {
"index_state": "S1",
"evidence_level": 1,
"level_label": "Live store listing",
"indexable": true,
"last_verified_at": "2026-07-31",
"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": "31 Jul 2026"
}
}
