Anchor Aid

Contains ads
Content rating
Everyone
1+
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Content rating
Everyone
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About this app

Anchor Aid helps you anchor more safely with the right scope, a clear swing circle, and a reliable drag alarm.

► SCOPE CALCULATOR
Enter depth, bow height, and scope ratio to get recommended rode length. Supports chain, rope+chain, and rope. Get wind-based scope suggestions and warnings when you don’t have enough rode.

► ANCHOR DRAG ALARM
Set your anchor point with GPS and choose a drag threshold. Get audio and vibration alerts if your boat moves beyond the limit. Background monitoring keeps the alarm active when the app is in the background.

► SWING RADIUS & MAP
See your swing circle on the map with anchor point and current position. Check distance and bearing in real time so you know you’re staying in a safe radius.

► BOTTOM TYPE & ANCHOR GUIDE
Pick bottom type (sand, mud, rock, etc.) for suitability hints. Use the anchor guide to compare anchor types and the step-by-step guide to anchoring technique.

► SESSION HISTORY & SETTINGS
Save and review past sessions. Use metric or imperial units. Adjust default scope, drag threshold, and alarm sound to suit your boat and conditions.

Anchor Aid is a tool to support good seamanship - not a replacement for keeping a proper watch or using official charts and equipment. Always use your own judgment when anchoring.

Built for boaters who want a clear, practical anchoring assistant.
Updated on
Apr 4, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, App activity, and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

What’s new

Fixed a Bottom Type Map crash and improved startup reliability when opening the map.
Content rating
Everyone
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App support

About the developer
Joni Henry Aleksi Lähdesmäki
feleroid@gmail.com
Tasankotie 22 B 31 00730 Helsinki Finland