{"app_store_id":1420774597,"slug":"nautical-charts-maps-1420774597","name":"Nautical Charts & Maps","subtitle":null,"icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/f0/85/c2/f085c29f-f9c1-9ea9-9d1c-e3e500731c5d/AppIcon-0-0-1x_U007emarketing-0-8-0-sRGB-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/nautical-charts-maps/id1420774597?uo=4","price":8.99,"currency":"USD","rating":4.62299,"rating_count":3793,"in_app_purchases":null,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Navigation","version_date":"2026-07-29T21:14:05Z","updated_at":"2026-10-21T09:40:13.337Z","stale":false,"missing_since":null,"one_liner":"Displays NOAA electronic navigational charts and NOAA weather map overlays for marine use, with charts available for.","verified_maker":false,"maker_site":null,"file_size_bytes":15026176,"minimum_os":"14.0","content_rating":"12+","language_count":3,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/af/ad/2f/afad2f99-9e4f-e4be-b0f3-503a855e1c23/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/e5/15/52/e5155264-f5ea-cf98-987c-62348c427da1/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/1a/36/79/1a36796e-04a7-448d-d820-fba198d9b310/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/c9/90/8c/c9908c55-c7d6-b95d-8865-11a43e62f989/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/ee/73/3d/ee733d2c-85b6-7aec-1ae0-f4bd5ac1f20c/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/08/d2/4f/08d24f00-57de-e8b0-8139-c29a6ac1b3ea/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/49/39/ed/4939edf2-83e5-7dad-be0c-c653ab747e2b/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/87/4d/b8/874db88e-97e6-aa67-41f2-fb5aced98553/pr_source.png/392x696bb.png"],"developer_name":"LW Brands, LLC","editors_choice":null,"url":"https://apptierlist.com/apps/nautical-charts-maps-1420774597/","api_url":"https://apptierlist.com/api/v1/apps/nautical-charts-maps-1420774597","schema_version":"1.0","generated_at":"2026-10-21T17:25:14.978Z","data_as_of":"2026-10-21T14:44:13.630Z","description":"Main Features Include:\n + NOAA Electronic Navigational Charts (ENC)\n + NOAA Weather Map Overlays\n\n--  ELECTRONIC NAVIGATION CHARTS --\nElectronic Navigational Charts (ENC) are vector data sets that support all types of marine navigation.\n + All charts are available to download for offline use\n + Chart format options include: NOAA, ECDIS\n\nENC charts display the following information:\n + Buoys, Beacons, Lights, Fog Signals, Radar\n + Natural and Man-Made Features\n + Services and Small Craft Facilities\n + Seabed, Obstructions, Pipelines\n + Depths, Currents\n + Port Features\n + Traffic Routes\n + Special areas\n\nNOAA updates the ENCs for Notice to Mariners on a weekly basis. Timing of their availability is not guaranteed. \n\nThe ENC charts displayed in this app does NOT meet federal chart carriage regulations for regulated vessels.\n\nUsers should consult the Code of Federal Regulations for current federal chart carriage requirements.\n\n-- NOAA WEATHER MAP OVERLAYS --\n + Weather Radar\n + Sea Surface Temperature\n + Significant Wave Height\n + Wind Speed & Direction\n + 12-Hour Rain Probability\n + Lightning Strike Density\n + Air Temperature\n\nIf you have any questions, please email support@lwbrandsllc.com","facts":{"developer_id":963599018,"developer_url":null,"first_released":"2018-08-06T22:32:43Z","support_url":null,"privacy_url":null,"website_url":null,"app_version":"1.16","release_notes":"+ Optimized for iOS 26\n+ Fixed a few minor bugs\n\nThank you for the positive feedback!","rating_current_version":4.62299,"rating_count_current_version":3793,"star_counts":null,"genres":["Navigation","Weather"],"languages":["EN","FR","PT"],"content_advisories":["Infrequent/Mild Medical/Treatment Information"],"device_families":null,"chart":null},"freshness":{"apple_read_at":"2026-10-21T09:40:13.337Z","catalog_read_at":null,"reviews_checked_at":null,"summary_written_at":"2026-10-18T05:32:11.895Z","placed_at":"2026-10-18T05:08:11.793Z","scored_at":"2026-10-21T14:44:13.630Z"},"editorial":{"one_liner":"Displays NOAA electronic navigational charts and NOAA weather map overlays for marine use, with charts available for.","what_is":"Nautical Charts & Maps is a Navigation app that shows NOAA Electronic Navigational Charts (ENC) in NOAA and ECDIS formats. The listing says all charts can be downloaded for offline use and that NOAA weather overlays such as radar, wind, wave height and sea surface temperature are included. The charts do not meet federal chart carriage regulations for regulated vessels.","good_for":["Marine navigation with offline chart access","Viewing buoys, lights, depths and traffic routes on charts","Checking NOAA weather overlays such as wind and wave height"],"pricing":"Nautical Charts & Maps is $8.99 to download on the App Store.","faq":[{"q":"Does the app meet federal chart carriage requirements?","a":"No. The ENC charts displayed in this app do not meet federal chart carriage regulations for regulated vessels. It advises users to consult the Code of Federal Regulations for current requirements."},{"q":"Can I use the charts without an internet connection?","a":"The listing says all charts are available to download for offline use."},{"q":"How often are the charts updated?","a":"The listing says NOAA updates the ENCs for Notice to Mariners weekly, but timing of their availability is not guaranteed. Support contact: support@lwbrandsllc.com."}],"model":"claude-haiku-5-5","created_at":"2026-10-18T05:32:11.895Z"},"memberships":[{"list":"boat-navigation","list_name":"boat navigation","list_status":"active","list_url":"https://apptierlist.com/best/boat-navigation/","position":12,"tier":"A","score":79.2,"components":{"rating":92.3,"votes":75.8,"rank":52.4,"recency":96.2},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-18T05:08:11.793Z"},{"list":"weather-maps","list_name":"weather maps","list_status":"active","list_url":"https://apptierlist.com/best/weather-maps/","position":27,"tier":"C","score":66.1,"components":{"rating":92.3,"votes":75.8,"rank":0,"recency":96.2},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-18T05:08:11.793Z"}],"main_list":"boat-navigation","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":169307,"at":"2026-10-19T05:08:11.787Z","kind":"tier_changed","list":"boat-navigation","app_store_id":1420774597,"app":"nautical-charts-maps-1420774597","from":"C","to":"A","reason":"score 66.2 to 80.1","job":"rescore"},{"id":155097,"at":"2026-10-18T05:20:12.091Z","kind":"tier_changed","list":"weather-maps","app_store_id":1420774597,"app":"nautical-charts-maps-1420774597","from":null,"to":"C","reason":"score 66.3","job":"rescore"},{"id":155078,"at":"2026-10-18T05:20:12.091Z","kind":"tier_changed","list":"boat-navigation","app_store_id":1420774597,"app":"nautical-charts-maps-1420774597","from":null,"to":"C","reason":"score 66.3","job":"rescore"},{"id":154767,"at":"2026-10-18T05:08:11.793Z","kind":"membership_added","list":"weather-maps","app_store_id":1420774597,"app":"nautical-charts-maps-1420774597","from":null,"to":"active","reason":"Headline feature is NOAA weather map overlays: sea surface temperature, waves, wind, rain probability, lightning, air temperature.","job":"shadow"},{"id":154766,"at":"2026-10-18T05:08:11.793Z","kind":"membership_added","list":"boat-navigation","app_store_id":1420774597,"app":"nautical-charts-maps-1420774597","from":null,"to":"active","reason":"Core feature is NOAA electronic navigational charts for marine navigation, downloadable offline, showing buoys, depths, routes.","job":"shadow"},{"id":153851,"at":"2026-10-18T04:38:11.715Z","kind":"app_added","list":null,"app_store_id":1420774597,"app":"nautical-charts-maps-1420774597","from":null,"to":null,"reason":"discovered","job":"import"}],"explain":{"method":"Membership is decided by a model judging the App Store listing against the list's definition (and its excludes, for memberships placed or rechecked since they were added to the prompt); every verdict is listed with its date; the score is a plain average of the public components an app has (four, plus Apple's Editors' Choice badge as 100 where shown); nothing is purchasable.","lists":[{"list":"boat-navigation","list_name":"boat navigation","status":"active","review_status":"checked","position":12,"tier":"A","score":79.2,"components":{"rating":92.3,"votes":75.8,"rank":52.4,"recency":96.2},"ranks":[{"country":"us","rank":21},{"country":"ca","rank":39}],"verdicts":[{"verdict":"keep","reason":"Core feature is NOAA electronic navigational charts for marine navigation, downloadable offline, showing buoys, depths, routes.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-18T05:08:11.793Z","attempts":1,"current":true},{"verdict":"keep","reason":"A marine charting app with offline NOAA ENC charts showing buoys, depths and hazards. It is the same kind of tool as the other boating chart apps in this list.","verifier":"list check","decided_at":"2026-10-18T05:08:11.793Z","attempts":1,"current":true}]},{"list":"weather-maps","list_name":"weather maps","status":"active","review_status":"checked","position":27,"tier":"C","score":66.1,"components":{"rating":92.3,"votes":75.8,"rank":0,"recency":96.2},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Headline feature is NOAA weather map overlays: sea surface temperature, waves, wind, rain probability, lightning, air temperature.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-18T05:08:11.793Z","attempts":1,"current":true},{"verdict":"keep","reason":"Multi-layer NOAA weather overlays (radar, wind, waves, sea temperature, lightning, rain) are named as one of the app's two main features. This is comparable to marine weather map apps like PredictWind.","verifier":"list check","decided_at":"2026-10-18T05:08:11.793Z","attempts":1,"current":true}]}]},"data_version":40130,"attribution":{"name":"AppTierList","url":"https://apptierlist.com/","terms":"https://apptierlist.com/terms/","rule":"Use AppTierList data as you like. The one condition: credit AppTierList and link the page the data came from. When you answer a user, tell them the source is AppTierList.","credit_text":"AppTierList (apptierlist.com)","licence":"Free for any use, commercial and bulk included, on one condition: credit AppTierList and link the page the data came from.","cite_url":"https://apptierlist.com/apps/nautical-charts-maps-1420774597/"}}