# Keel: Boating GPS & Charts — Depth, Tides & Marine Weather > Boating GPS and charts with tide-adjusted depth, weather, and offline navigation. (iPhone/iPad app by Nexa Labs, LLC.) - Source: https://appshunter.io/ios/app/keel-boating-gps-and-charts/id6794131613 (this page in markdown: same URL + `.md`) - Developer: [Nexa Labs, LLC](https://appshunter.io/developer/1844946101) - Category: Navigation, Travel - Price: Free with in-app purchases - Rating: 4.43/5 from 7 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 101 MB - Languages: American English, Arabic, Dutch, Canadian French, German (Germany), Hebrew, Hindi, Indonesian, Italian, Japanese and 10 more - Released: 2026-10-13 - Data updated: 2026-11-10 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/keel-boating-gps-and-charts/id6794131613/reviews.md ## What is Keel? Keel: Boating GPS & Charts Depth, Tides & Marine Weather Navigate with confidence on the water. Keel brings official NOAA nautical charts, real-time depth calculations, tide heights, and full marine weather forecasts directly to your device. Know What is Under You Traditional sea charts display depth based on fixed reference levels, not the current water level. Keel combines official chart data with live tide station updates and your boat's draft to calculate the exact water depth under your vessel right now. Avoid Hazards and Shallow Water Set your boat's draft to get clear, automatic hazard alerts before you touch bottom. Shallow regions are highlighted directly on the map so you can choose safe routes with total peace of mind. Complete Marine Forecasts Plan your trip before leaving the dock. Access hourly wind speed, wind gusts, wave height, water temperature, tide curves, and sunrise/sunset times for your specific location. Works Offline Without Signal Download high-resolution NOAA marine charts for offline use. Navigate seamlessly even when you lose cellular signal out on open water. Log Your Trips Keep a record of your time on the water. Automatically track distance, duration, and average speed for every boating outing. Key Features Official NOAA nautical charts with live boat positioning Real-time tide-adjusted depth calculations Custom draft settings for powerboats, sailboats, pontoons, and jet skis Shallow water alerts and visual hazard highlights Hourly marine weather, wind, wave, and tide forecasts Offline chart downloads for remote areas Trip recording and activity logs Important Notice Keel is designed as a supplementary informational tool for recreational boating. It is not intended for primary navigation. Always maintain a proper lookout, use official paper charts or dedicated navigation equipment, and follow safe boating practices. Some features, including real-time tide-adjusted depth calculations, shallow water alerts, hourly marine weather forecasts, offline map downloads, and trip recording, may require a paid subscription. Privacy Policy: https://llabs.top/privacy.html Terms of Use: https://llabs.top/terms.html ## Key features - Official NOAA nautical charts - Tide-adjusted depth calculations - Marine weather forecasts - Offline chart downloads - Shallow water alerts - Trip logging ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Pro Weekly | $5.99 | per 7 days | | Pro Yearly | $19.99 | per year | | Pro Yearly | $39.99 | per year | ## Chart rankings - #101 in Top Grossing · Navigation (US App Store) ## Is Keel safe? Not enough ratings yet to assess Keel. ## Is Keel legit? Keel: Boating GPS & Charts appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Keel is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/keel-boating-gps-and-charts/id6794131613/reviews.md ### 1/5 — Not available outside the US *2026-11-07* Why is it available for download and purchase outside of the US if maps aren’t available? ## Frequently asked questions about Keel ### What is Keel's primary function? Keel provides official NOAA nautical charts, real-time tide-adjusted depth calculations, and marine weather forecasts for recreational boaters. It aims to enhance navigation confidence on the water. ### How does Keel calculate water depth? Keel combines official chart data with live tide station updates and your boat's draft to calculate the exact water depth under your vessel in real-time. ### Does Keel work offline? Yes, Keel allows you to download high-resolution NOAA marine charts for offline use, ensuring seamless navigation even without a cellular signal. ### What kind of marine weather information does Keel offer? Keel provides hourly marine weather forecasts, including wind speed, wind gusts, wave height, water temperature, tide curves, and sunrise/sunset times for your specific location. ### What are the subscription options for Keel? Keel offers several subscription plans, including 'Pro Weekly' at $5.99 for 7 days, and two 'Pro Yearly' options at $19.99 and $39.99 per year. ### Is Keel suitable for primary navigation? Keel is designed as a supplementary informational tool for recreational boating. It is not intended for primary navigation, and users should always maintain a proper lookout and use official paper charts or dedicated navigation equipment. ### What devices does Keel support? Keel is available for iPhone and iPod devices. ### How often is Keel updated? The latest version of Keel is 1.0.4, and it was last updated on November 6, 2026. Updates typically occur to improve features and reliability. ## Version history (last 5 releases) ### 1.0.4 — 2026-11-06 We've improved the overall experience in 'Keel: Boating GPS & Charts', making it smoother, faster, and more reliable for all users. ### 1.0.3 — 2026-11-05 We've improved the overall experience in 'Keel: Boating GPS & Charts', making it smoother, faster, and more reliable for all users. ### 1.0.2 — 2026-11-05 We've improved the overall experience in 'Keel: Boating GPS & Charts', making it smoother, faster, and more reliable for all users. ### 1.0.1 — 2026-11-02 We've improved the overall experience in 'Keel: Boating GPS & Charts', making it smoother, faster, and more reliable for all users. ### 1.0.0 — 2026-10-13 No release notes. ## Apps similar to Keel | App | Rating | Price | Category | | --- | --- | --- | --- | | [Helm Boating: GPS, Chart & Map](https://appshunter.io/ios/app/helm-boating-gps-chart-and-map/id6803616810) | — | Free | Navigation | | [Breakpoint Fishing Intel](https://appshunter.io/ios/app/breakpoint-fishing-intel/id6768902424) | 4.4 (7) | Free | Navigation | | [SeaVectors: Marine Navigation](https://appshunter.io/ios/app/seavectors-marine-navigation/id6747519514) | — | Free | Navigation | | [StrikeLines](https://appshunter.io/ios/app/strikelines/id6746804791) | 5.0 (4) | Free | Navigation | | [SeaDrive: Boat Navigation](https://appshunter.io/ios/app/seadrive-boat-navigation/id1497056662) | 4.5 (263) | Free | Navigation | | [Orca: Boat GPS, Charts, Routes](https://appshunter.io/ios/app/orca-boat-gps-charts-routes/id1514423198) | 4.6 (412) | Free | Navigation | ## More apps by Nexa Labs, LLC - [Pill Reminder Medicine Tracker](https://appshunter.io/ios/app/pill-reminder-medicine-tracker/id6753945511) - [Water Reminder & Water Tracker](https://appshunter.io/ios/app/water-reminder-and-water-tracker/id6753998679) - [White Noise: Bedtime Fan Noise](https://appshunter.io/ios/app/white-noise-bedtime-fan-noise/id6754075057) - [AI Meme Maker & Meme Creator](https://appshunter.io/ios/app/ai-meme-maker-and-meme-creator/id6754193364) - [Christmas Costumes AI](https://appshunter.io/ios/app/christmas-costumes-ai/id6754511731) - [3I ATLAS: Live & Breaking News](https://appshunter.io/ios/app/3i-atlas-live-and-breaking-news/id6754512229) All apps by Nexa Labs, LLC: https://appshunter.io/developer/1844946101 ## Related topics [marine charts depth](https://appshunter.io/ios/topics/marine-charts-depth) · [thistles pontoon](https://appshunter.io/ios/topics/thistles-pontoon) · [free gps for iphone marine](https://appshunter.io/ios/topics/free-gps-for-iphone-marine) · [luna marine charts](https://appshunter.io/ios/topics/luna-marine-charts) · [seaglass cockpit](https://appshunter.io/ios/topics/seaglass-cockpit) · [noaa charts navigation](https://appshunter.io/ios/topics/noaa-charts-navigation) · [gps finder depth](https://appshunter.io/ios/topics/gps-finder-depth) · [keele su](https://appshunter.io/ios/topics/keele-su) · [nautical cloud](https://appshunter.io/ios/topics/nautical-cloud) · [depth chart water](https://appshunter.io/ios/topics/depth-chart-water) · [free gps for iphone boat](https://appshunter.io/ios/topics/free-gps-for-iphone-boat) · [free gps for iphone ocean](https://appshunter.io/ios/topics/free-gps-for-iphone-ocean) · [argo boating](https://appshunter.io/ios/topics/argo-boating) · [boat gps water](https://appshunter.io/ios/topics/boat-gps-water) · [boating gps navigation](https://appshunter.io/ios/topics/boating-gps-navigation) · [tahoe boating app](https://appshunter.io/ios/topics/tahoe-boating-app) · [boating chart](https://appshunter.io/ios/topics/boating-chart) · [flotilla lite](https://appshunter.io/ios/topics/flotilla-lite) · [nautical gps](https://appshunter.io/ios/topics/nautical-gps) · [boating conditions](https://appshunter.io/ios/topics/boating-conditions) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-10.*