Anchor Alarm: Boat Watch
Drift Alerts & GPS Watch
Only for iPhone
Free · In‑App Purchases
iPhone
Set the anchor, choose a safe zone, and keep a clear eye on your boat’s movement—even when a map is unavailable.
ANCHOR WATCH, MADE CLEAR
Anchor Alarm helps you monitor a small boat or yacht while anchored. Mark the anchor position, set a safe zone, and follow your boat’s movement on a focused marine radar.
BUILT FOR REAL ANCHORAGES
• Clear drift distance, GPS accuracy, safe-zone status, and movement trail
• Circle, ellipse, and corridor zones for different anchoring situations
• A practical radar view that remains useful when a map is unavailable
• GPS filtering designed to reduce the effect of noisy location samples
• A sound and notification check before you settle in
ANCHOR ALARM PRO
• Background monitoring while the screen is locked
• Local alert notification when confirmed movement crosses the safe boundary
• Anchor-session history with the recorded swing track
• A calm night interface for a dark cabin
Privacy comes first: no account, no advertising, and no developer-operated location server. Location and trip history stay on your iPhone.
Important: GPS accuracy, iOS background execution, notification delivery, device power, Focus, and Silent Mode can affect alerts. Force-quitting the app or turning off the device stops monitoring. Anchor Alarm is an aid and does not replace a proper anchor watch, seamanship, or certified navigation equipment.
Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel them in your Apple ID subscription settings. A Lifetime purchase is a one-time, non-consumable purchase.
Privacy Policy: https://anchor-alarm-privacy.pages.dev/
Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Ivan Dotsenko, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ivan Dotsenko
- Size
- 51.3 MB
- Category
- Navigation
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English and Russian
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- PRO Annual $14.99
- PRO Weekly $1.99
- Lifetime PRO access $24.99
- Copyright
- © 2026 Anchor Alarm