Anchor! drag alarm by Pomacanthus (Universal)
Released: Jul 1, 2013
Version: 6.20
Size: 15 MB
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Ranking - Navigation (iPhone)

Ranking - Navigation (iPad)

Anchor! drag alarm

Screenshot #1 (iPhone)
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

Press the main button (anchor down) to set anchor position,
Touch the alarm circle on map to adjust alarm radius and you're ready.

Press the main button (anchor up) disables all alarms.

Main button to set anchor at your current position,
Choose a position on the map: relocate anchor with drag and drop.

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.


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 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.

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.

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.

What's new in version 6.20
Critical alerts
Our verdict: Good
  • + Anchor! drag alarm is a highly rated app (4.5-star).
  • + Anchor! drag alarm is currently ranked #142 in paid Navigation apps for iPhone, as well as #52 in paid Navigation apps for iPad.
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