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"
},
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"stores": [
"apple"
],
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"iphone",
"ipad"
],
"status": {
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"label": "Active",
"last_checked": "2026-07-31",
"last_checked_label": "31 Jul 2026",
"banner": null,
"region_note": null
}
},
"listings": [
{
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"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": {
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"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",
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}
]
},
"use_cases": [],
"features": [
{
"capability_id": "free_app",
"label": "Free app",
"availability": "yes",
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"scope": null,
"evidence": "Store published"
}
],
"pricing": [
{
"store": "apple",
"formatted_price": "Free",
"is_free": true,
"has_iap": false,
"has_subscription": false,
"currency": "USD",
"market": "gb",
"last_verified": "2026-07-31",
"rows": [
"Free"
]
}
],
"screens": [
{
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"store": "apple",
"platform": "ipad",
"alt": "Nautical Rules ipad screenshot 1"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Nautical Rules ipad screenshot 2"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Nautical Rules ipad screenshot 3"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Nautical Rules ipad screenshot 4"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Nautical Rules ipad screenshot 5"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Nautical Rules iphone screenshot 6"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Nautical Rules iphone screenshot 7"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Nautical Rules iphone screenshot 8"
},
{
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"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": "gb",
"observed_at": "2026-07-31",
"reviews": [
{
"rating": 5,
"title": "The best study tool for the USCG exam!",
"body": "As a maritime professional, staying sharp on COLREGS is essential. This app is a major step up from the older, clunky apps that haven't been updated in years. The 'Focus Area' suggestions are a game-changer—it tracks my stats and tells me exactly which rules I need to review based on my previous mistakes. The explanations are clear and the progress tracking keeps me motivated. Highly recommended for any SWO or merchant mariner.",
"author": "Ginseng6",
"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": "Best Sea Nav rules all on the AppStore!",
"body": "Amazing app for any mariner! Question direct align with coast guard navigation books and is really helpful in not only passing tests but actually being a good mariner! My whole crew is required to use this app, it’s that good!",
"author": "ekl456",
"date": "31 Jul 2026"
},
{
"rating": 5,
"title": "Best RoR resource",
"body": "As an instructor of Rules of the road I find the app extremely accurate and easy to use. I recommend this app to all my students.",
"author": "Swoboss",
"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": "gb",
"note": "No LIVE observation for GB yet."
},
"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"
}
}
