{"app_store_id":555309964,"slug":"sailflow-sailing-forecasts-555309964","name":"SailFlow: Sailing Forecasts","subtitle":"Wind, Maps, Waves & Tides","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/f5/f9/e6/f5f9e62f-d4ab-c3df-ac06-db84d336d172/AppIcon.sailflow-0-0-1x_U007epad-0-1-0-sRGB-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/sailflow-sailing-forecasts/id555309964?uo=4","price":0,"currency":"USD","rating":4.74254,"rating_count":5842,"in_app_purchases":true,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Weather","version_date":"2026-10-14T14:05:39Z","updated_at":"2026-10-21T02:51:12.827Z","stale":false,"missing_since":null,"one_liner":"Sailing weather app showing live wind, forecast maps, radar, waves, tides and customizable wind alerts.","verified_maker":false,"maker_site":null,"file_size_bytes":144076800,"minimum_os":"15.0","content_rating":"4+","language_count":5,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/3e/4b/35/3e4b35ef-80da-959d-d0ff-9fc30302578e/01.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ec/e0/a0/ece0a078-041e-b6bb-2ca2-f55e7b0beab5/02.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/48/fa/e1/48fae1da-a834-8430-4294-5ca308d62f42/03.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3d/e4/14/3de4143e-43f8-5121-6a9e-00b2011b0be7/04.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/7f/07/cc/7f07cce7-5867-6883-a8e7-1ab5dbda9345/05.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/02/de/2a/02de2a86-7301-40c1-ffba-ae1e76a63917/06.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/76/18/21/761821df-5348-720e-50b2-eb083ebcdef2/07.png/320x480bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/c3/c6/e2/c3c6e225-d4b8-1bb8-e7c5-a1c61fdc272c/08.png/320x480bb.jpg"],"developer_name":"WeatherFlow","editors_choice":false,"url":"https://apptierlist.com/apps/sailflow-sailing-forecasts-555309964/","api_url":"https://apptierlist.com/api/v1/apps/sailflow-sailing-forecasts-555309964","schema_version":"1.0","generated_at":"2026-10-21T07:37:50.347Z","data_as_of":"2026-10-21T03:18:12.622Z","description":"Whether you’re racing, cruising, day sailing, you need precise sailing forecasts and real-time wind. SailFlow delivers both.\n\nPowered by 90,000+ exclusive Tempest Weather Stations and 150,000+ total sources, SailFlow’s weather and wind app delivers unmatched accuracy. With stations on buoys, piers, and key waterfront locations, you get real conditions exactly where you sail.\n\nPlan with confidence using our Tempest Rapid Refresh Model combined with government data to deliver industry-leading Nearcast AI predictions. Then go deeper with radar, high-resolution forecast maps, and fully customizable alerts so you never miss a session.\n\nReal wind. Better sails.\n\n- Coastal observations from proprietary Tempest Weather Systems along with all public domain marine forecasts and reports (NOAA, NWS, METAR, ASOS, CWOP) including all major airports creating over 150,000 unique stations.\n\n- Exclusive Tempest Weather Systems deployed at key coastal locations report wind, rain, barometric pressure and more than 24 other weather observations. \n\n- Apple Watch compatibility\n\n- Live wind from our stations support powerful wind flow visualization – augmented by current station reports with advanced quality control.\n\n- Our Proprietary AI-enhanced Nearcast provides enhanced forecasting for temperature, wind gust, speed, direction, humidity, dewpoint, precipitation rate, probability of precipitation, and cloud cover percentage which is perfect for sailing.\n\n- Public domain forecast models including High Resolution Rapid Refresh (HRRR), North American Mesoscale Forecast System (NAM), Global Forecast System (GFS), Canadian Meteorological Centre Model (CMC) and Icosahedral Non Hydrostatic Model (ICON).\n\n- Create your own favorite station list to keep an eye on your go-to weather stations at all your marine and sailing spots. Check the tides in minutes so you never miss a day on the water.\n\n- Maps: Live and Forecasted Wind Map, Forecasted Temperature, Radar, Satellite, Precipitation and Clouds, as well as Nautical Charts.\n\n- Free subscription for unlimited wind notifications/alerts with customizable thresholds to email, text, or in-app.\n\n- Monitor National Weather Service (NWS) Marine forecasts, high surf warnings, and other to better anticipate waves and current conditions, for safer, more informed decisions on the water. \n\nAdditional weather parameters:\n  - Tides charts\n  - Wave height, wave period\n  - Water temperature\n  - Sunrise / sunset\n  - Moonrise / moonset\n  - Historical wind statistics\n  - Windy days per month\n  - Wind direction distribution\n\nGo Beyond the Basics: Upgrade to Plus, Pro, or Gold membership to gain access to more weather stations, ad-free browsing, and more.\n\n- Access exclusive Pro and hurricane-proof stations at premier coastal locations and unlock SailFlow’s hyper-accurate Pro forecasts, updated daily by expert meteorologists for sailing hotspots coast to coast.\n\n- Detailed weather at points of interest to coastal residents and property owners near the ocean, rivers, and other bodies of water.\n\nOn the water features:\n  - Sea surface temperatures\n  - Sea surface currents\n  - Detailed historical wind statistics\n  - Historical wind speed average by year\n \nDoes your spot need a station? Join the Tempest Weather Network!\nGet a Tempest Weather System for your club, dock, or backyard.\n\nGet support: help.weatherflow.com/hc/en-us/categories/200419268-iKitesurf-iWindsurf-SailFlow-FishWeather-WindAlert\n\nConnect with Tempest:\n  - facebook.com/tempestwx\n  - twitter.com/tempest_wx\n  - youtube.com/@tempestwx\n  - instagram.com/tempest.earth\n\nContact Tempest: help.weatherflow.com/hc/en-us/requests/new\nWebsite: tempest.earth\n\nBy purchasing a subscription or downloading SailFlow you agree that you have read and accept our Privacy Policy and Terms of Use.\ngot.wf/privacy\ngot.wf/terms","facts":{"developer_id":317992028,"developer_url":"https://www.sailflow.com/","first_released":"2012-10-18T16:39:50Z","support_url":"https://help.weatherflow.com/hc/en-us/requests/new","privacy_url":"https://got.wf/privacy","website_url":"https://www.sailflow.com/","app_version":"7.14","release_notes":"Optimized for iOS 27 and the new iPhone Duo. New split-screen views on Duo and iPad let you browse lists and maps alongside a location’s full weather report. Available in Wind List, Pro Forecasts, Favorites, and Maps.","rating_current_version":4.74254,"rating_count_current_version":5842,"star_counts":[77,21,102,929,4701],"genres":["Weather","Sports"],"languages":["EN","FR","DE","HE","ES"],"content_advisories":null,"device_families":["watch","iphone","ipad","ipod"],"chart":null},"freshness":{"apple_read_at":"2026-10-21T02:51:12.827Z","catalog_read_at":"2026-10-16T16:03:45.557Z","reviews_checked_at":null,"summary_written_at":"2026-10-19T05:47:11.696Z","placed_at":"2026-10-16T18:49:42.149Z","scored_at":"2026-10-21T03:18:12.622Z"},"editorial":{"one_liner":"Sailing weather app showing live wind, forecast maps, radar, waves, tides and customizable wind alerts.","what_is":"SailFlow is a weather app for sailing that combines data from its Tempest Weather Stations, public marine observations, and forecast models including HRRR, NAM, GFS, CMC and ICON. It offers live and forecast wind maps, radar, nautical charts, tides, wave height and period, and NWS marine forecasts. The listing also states Apple Watch compatibility and free wind alerts with customizable thresholds.","good_for":["Checking live wind and forecast maps before racing or cruising","Monitoring tides, wave height and water temperature at favorite spots","Receiving wind alerts by email, text or in-app notification"],"pricing":"SailFlow: Sailing Forecasts is free to download, with in-app purchases on the App Store.","faq":[{"q":"Is the app free to use?","a":"The app is free to download. The App Store lists in-app purchases, and the listing describes Plus, Pro or Gold memberships that add more weather stations and ad-free browsing. Wind alerts are described as a free subscription."},{"q":"Where does the forecast and station data come from?","a":"The listing cites SailFlow's Tempest Weather Stations on buoys, piers and waterfront sites, public marine reports from NOAA, NWS, METAR, ASOS and CWOP, and models including HRRR, NAM, GFS, CMC and ICON."},{"q":"Does it work with Apple Watch and show tides?","a":"The listing states Apple Watch compatibility. It also lists tides charts, wave height and period, water temperature, sunrise and sunset, and historical wind statistics."}],"model":"claude-haiku-5-5","created_at":"2026-10-19T05:47:11.696Z"},"memberships":[{"list":"weather-maps","list_name":"weather maps","list_status":"active","list_url":"https://apptierlist.com/best/weather-maps/","position":13,"tier":"B","score":80.2,"components":{"rating":94.8,"votes":77.7,"rank":48.4,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-16T18:49:42.149Z"},{"list":"weather-forecasting","list_name":"Weather","list_status":"active","list_url":"https://apptierlist.com/best/weather-forecasting/","position":121,"tier":null,"score":68.1,"components":{"rating":94.9,"votes":77.7,"rank":0,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-16T18:49:42.149Z"}],"main_list":"weather-maps","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":150465,"at":"2026-10-18T02:29:11.607Z","kind":"tier_changed","list":"weather-maps","app_store_id":555309964,"app":"sailflow-sailing-forecasts-555309964","from":"C","to":"B","reason":"rank shift: #13, score 80.2, tier full (a quarter of the list)","job":"rescore"},{"id":133163,"at":"2026-10-16T19:05:51.952Z","kind":"tier_changed","list":"weather-maps","app_store_id":555309964,"app":"sailflow-sailing-forecasts-555309964","from":null,"to":"C","reason":"score 68.1","job":"rescore"},{"id":132980,"at":"2026-10-16T18:49:42.149Z","kind":"membership_added","list":"weather-maps","app_store_id":555309964,"app":"sailflow-sailing-forecasts-555309964","from":null,"to":"active","reason":"It offers high-resolution forecast maps and wind flow visualization, which show conditions across an area.","job":"shadow"},{"id":132979,"at":"2026-10-16T18:49:42.149Z","kind":"membership_added","list":"weather-forecasting","app_store_id":555309964,"app":"sailflow-sailing-forecasts-555309964","from":null,"to":"active","reason":"It is a sailing weather and wind app with Nearcast AI forecasts, live station observations, and customizable alerts.","job":"shadow"},{"id":130048,"at":"2026-10-16T16:03:45.557Z","kind":"app_added","list":null,"app_store_id":555309964,"app":"sailflow-sailing-forecasts-555309964","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":"weather-maps","list_name":"weather maps","status":"active","review_status":"checked","position":13,"tier":"B","score":80.2,"components":{"rating":94.8,"votes":77.7,"rank":48.4,"recency":100},"ranks":[{"country":"us","rank":19}],"verdicts":[{"verdict":"keep","reason":"It offers high-resolution forecast maps and wind flow visualization, which show conditions across an area.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-16T18:49:42.149Z","attempts":1,"current":true},{"verdict":"keep","reason":"It offers high-resolution forecast maps, radar and wind flow visualization across station locations. That matches Windy.app and Windfinder, which are already in this list.","verifier":"list check","decided_at":"2026-10-16T18:49:42.149Z","attempts":1,"current":true}]},{"list":"weather-forecasting","list_name":"Weather","status":"active","review_status":"checked","position":121,"tier":null,"score":68.1,"components":{"rating":94.9,"votes":77.7,"rank":0,"recency":100},"ranks":[],"verdicts":[{"verdict":"keep","reason":"It is a sailing weather and wind app with Nearcast AI forecasts, live station observations, and customizable alerts.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-16T18:49:42.149Z","attempts":1,"current":true},{"verdict":"keep","reason":"SailFlow is mainly a weather and wind forecast app with radar, forecast maps and alerts. It is specialized for sailors, but it is still a forecasting app that someone comparing weather apps would consider.","verifier":"list check","decided_at":"2026-10-16T18:49:42.149Z","attempts":1,"current":true}]}]},"data_version":39681,"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/sailflow-sailing-forecasts-555309964/"}}