# Anchor! drag alarm — simple drag alarm for sailors > Anchor drag alarm with remote, offline, and watch app features. (iPhone/iPad app by Pomacanthus.) - Source: https://appshunter.io/ios/app/anchor-drag-alarm/id661180281 (this page in markdown: same URL + `.md`) - Developer: [Pomacanthus](https://appshunter.io/developer/661180284) - Category: Navigation, Travel - Price: $4.99 - Rating: 4.40/5 from 275 App Store ratings · 238 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 15 MB - Languages: American English, French (France) - Released: 2013-07-01 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/anchor-drag-alarm/id661180281/reviews.md ## What is Anchor! drag alarm? Be alerted if your anchor drags with a simple yet full of features app : Easy to use - Late set - Remote mode - Dark mode support - Arc or circle Perimeter - Watch app - Find my boat EASY SET UP: Press the main button (anchor down) to set anchor position, Touch the alarm circle on map to adjust alarm radius and you're ready. EASY STOP: Press the main button (anchor up) disables all alarms. EASY TO SET ANCHOR POSITION: Main button to set anchor at your current position, Choose a position on the map: relocate anchor with drag and drop. EASY TO ADJUST ALARM DISTANCE: Either set a value in settings, Or adjust it directly by touching the alarm circle. ALL INCLUSIVE: No add, no subscription, no in app purchase add on. ARC OR CIRCLE PERIMETER 4 ALARMS METHODS: Attention catching visual alarm with a blinking black/white screen (foreground only), Accoustic with ringtone choice (iPads needs to be unmuted in the Control Center), Remote, Mail. REMOTE MODE: check your position and get alerted on a second device. FIND YOUR BOAT: dinghy option in remote mode FIND MY BOAT: Crowded anchorage? The remote features a dinghy mode that will shows directions to your boat. WORKS OFFLINE! You still see your boat position relative to the anchor, the anchor position and the alarm circle. Once offline the map is replaced by a graphic. WATCH COMPANION APP : anchor, snooze and stop alarms from watch. Watch notifications are less intrusive and will silence the phone notifications. We thus recommend to opt-out watch notifications. ENHANCED TRACK RECORDING: The boat track is recorded and a time-colored path is displayed on map. You can identify at first glance whether your anchor position is drifting or not. TRACK MANAGEMENT: Enable, disable and reset the track. Export it in CSV or GPX format. Vertical map scale in feet or meters. User interface compatible with dark mode for night use. Compatible with flic and flic V2 buttons, no hub required. flic buttons are splash proof smart buttons and you may use them as a remote to set, snooze and stop alarms. Strictly respects your privacy: we do not collect any of your personal information, ever. Compatible with external GPS for best accuracy (required for iPad with no gps) : tested on gns2000 , Dual xgps, Bad Elf and Garlmin glo. Compatible with Flic buttons. ---- legal notice: When the alarm is on, this app will use GPS in the background to be able to alert you. Continued use of GPS in the background can dramatically decrease battery life: don't forget your charger on board. The remote mode uses an external server that could be shut down without notice by its provider or run slow . The remote mode needs data connexion and 2 apple or android devices Use of the remote mode comes is subject to the agreement to this supplementary copyright notice: In addition to the applicable standard EULA, permission is not granted to use Anchor! to track someone without his dedicated and recent consent. Provided maps are not nautical charts. ## Key features - Anchor position setting - Adjustable alarm radius - Visual and acoustic alarms - Remote and email alerts - Offline map functionality - Track recording and export - Watch app companion ## Recent user reviews (10 of 238) All indexed reviews: https://appshunter.io/ios/app/anchor-drag-alarm/id661180281/reviews.md ### 5/5 — Super *2025-07-09, version 6.20* Works perfectly, well designed ### 1/5 — in Africa? *2025-07-05, version 6.20* He keeps thinking I’m in Africa and then I’ll switch back to the states. I don’t know what it’s doing. I can’t depend on it. ### 4/5 — Anchor! Drag alarm *2025-07-01, version 6.20* Good, but only as good as the gps on your device. For my I-pad gps is pathetic, so I get some false alarms. I-Phone works better. ### 5/5 — Simple and easy *2025-06-21, version 6.20* Enough said ### 4/5 — Marlinspikesailor *2025-06-05* Simple, highly functional, remote monitoring capable with two phones with wifi or cellular signal. Reliable peace of mind at anchor in my palm with all my other navigation tools. This app has given me a heads up when I was dragging long before I would have realized more than once. (Voyaging captain of 35 years. 120,000+ blue water miles) ### 1/5 — Kept dropping out *2025-05-21, version 6.20* Just kept dropping out, so had to switch it off ### 2/5 — Defective? *2025-05-17, version 6.20* I am tied to a Harbour Wall the boat track has shown to be half way across the Harbour to SB and onto the Street 20 yards away to Port. ### 2/5 — Best Anchor Alarm app has been abandoned *2025-05-11, version 6.20* This used to be the best Anchor Alarm app but hasn’t been updated in over 4 years and remote monitoring doesn’t work anymore. Never got a reply from the developer. It’s a shame… ### 5/5 — Love the Remote Function! *2025-04-21, version 6.20* I use a spare phone in the boat to monitor the anchor alarm and remote it to my cell phone I carry around. Even if I go ashore I can monitor the boat location! Anchor dragging and theft monitoring! ### 5/5 — Essential for Cruising Sailors *2025-04-21, version 6.20* We have used this App since 2013 and rely on it heavily. Love it’s simplicity and reliability as live aboard cruisers spending as much time as possible on anchor. Great peace of mind. ## Frequently asked questions about Anchor! drag alarm ### What does the Anchor! drag alarm app do? This app alerts you if your boat's anchor drags from its set position. It provides visual and acoustic alarms, as well as remote and email notifications. The app also records your boat's track and works offline. ### How do I set up the anchor alarm? Setting up the alarm is simple. Press the main button to set your anchor position, then touch the alarm circle on the map to adjust the alarm radius. You can also set a value in the settings menu. ### Is the Anchor! drag alarm app free to use? Yes, the app is completely free to use. It does not have any ads, subscriptions, or in-app purchases. ### Does the app work offline? Yes, the app works offline. You can still see your boat's position relative to the anchor, the anchor position, and the alarm circle. The map will be replaced by a graphic when offline. ### What are the different alarm methods available? The app offers four alarm methods: attention-grabbing visual alarms with a blinking screen, acoustic alarms with ringtone choice, remote alerts on a second device, and email notifications. ## Version history (last 5 releases) ### 6.20 — 2021-01-28 Critical alerts ### 6.12 — 2020-09-17 IOS 14 compatibility ### 6.11 — 2020-09-12 Crowded anchorage ? The remote mode now features a dinghy mode that will shows directions to your boat. bugfix ### 6.1 — 2020-08-10 Crowded anchorage ? The remote mode now features a dinghy mode that will shows directions to your boat. ### 6.00 — 2020-08-01 Arc shape for alarm perimeter Apple Watch app Dark mode support Invite remote device with airdrop Enhanced UI for iOS 13 Flic 2 buttons support Bugfixes ## Apps similar to Anchor! drag alarm | App | Rating | Price | Category | | --- | --- | --- | --- | | [Anchor Alarm: ZENKOU PRO](https://appshunter.io/ios/app/anchor-alarm-zenkou-pro/id1568849324) | 4.5 (159) | Free | Navigation | | [Anchor Alarm with Late Set](https://appshunter.io/ios/app/anchor-alarm-with-late-set/id1292028990) | 4.6 (381) | Free | Navigation | | [Anchor Alarm / Watch](https://appshunter.io/ios/app/anchor-alarm-watch/id1428485893) | 4.7 (779) | Free | Navigation | | [Navily](https://appshunter.io/ios/app/navily/id881103205) | 4.8 (766) | Free | Navigation | | [台北捷運圖-最方便快速的地圖資訊](https://appshunter.io/ios/app/id1575223400) | — | Free | Navigation | | [Boat Beacon](https://appshunter.io/ios/app/boat-beacon/id494877039) | 4.6 (829) | $14.99 | Navigation | ## More apps by Pomacanthus - [Colregs: lights and shapes](https://appshunter.io/ios/app/colregs-lights-and-shapes/id981283662) - [Colregs: lights and shapes HD](https://appshunter.io/ios/app/colregs-lights-and-shapes-hd/id981286672) All apps by Pomacanthus: https://appshunter.io/developer/661180284 --- *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 2026-06-10.*