AnchorWard Alarm

The Byte Sailor

Contains adsIn-app purchases

About this app

AnchorWard is a real-time anchor watch and anchor alarm app that monitors your boat's GPS position relative to your dropped anchor and alerts you if you drift outside a defined safe zone.

Whether you're anchored overnight, leaving the boat while ashore, or coastal cruising — AnchorWard keeps watch so you can rest easy.

CORE FEATURES:
⚓ One-tap anchor drop at current GPS position
🔴 Configurable safe radius (meters, feet, or nautical miles)
🗺️ Live map view with boat + anchor visualization
📊 Battery-friendly Data View (text-only, no map rendering)
🔔 Loud local alarm with sound + vibration + critical notification
⏰ Snooze with automatic re-trigger
🌙 Night mode with automatic sunset/sunrise switching
📍 Sector-based zones for harbor or restricted areas
🔷 Custom polygon zones for freeform safe areas

ADVANCED MONITORING:
🧭 Compass-based anchor setting (Point & Set)
🪢 Lines Ashore Mode with heading breach detection
📡 Remote alerts via Telegram and Email
📅 Scheduled monitoring with auto-start/stop
🌬️ Live wind overlay with 12h forecast
🌊 Tide data overlay with 24h tidal curve
⚠️ Wind shift alarm detection
⚙️ Scope calculator with smart radius suggestion

ANCHOR HISTORY & ANALYSIS:
📜 Full anchor session history log
🔥 Drift heatmap visualization
▶️ Drift playback / session replay
🏷️ Tags, bottom type, holding rating, and weather metadata
📤 Export sessions as GPX or CSV
📸 Share session snapshots

WORKS IN THE BACKGROUND:
AnchorWard uses a persistent foreground service and heartbeat system to keep monitoring active even when your screen is off or the app is in the background. Designed for reliability — if the app is unexpectedly closed during monitoring, a watchdog alert notifies you immediately.

SAFETY FIRST:
- Fail-safe alarm logic: when in doubt, the alarm triggers
- GPS signal quality monitoring with low/critical alerts
- Battery monitoring with warnings
- Multiple alarm fallbacks: local sound + vibration + notification + remote channels
- Works entirely offline — no internet required for core monitoring

PRO FEATURES:
Upgrade to AnchorWard Pro for the full experience:
- Anchor history with search and filters
- Sector and polygon zones
- Remote alerts (Telegram/Email)
- Wind and tide overlays
- Compass-based anchor setting
- Drift playback and heatmap
- Session export (GPX/CSV)
- Ad-free experience

AnchorWard is built by sailors, for sailors. Available in English, Spanish, French, Portuguese (Brazil), Portuguese (Portugal), German, Italian, Dutch, Greek, Turkish, Croatian, Swedish, Norwegian Bokmål and Danish.

Download now and anchor with confidence.

What’s new

Celebrate AnchorWard v1.0.0 Launch!

Thank you for being part of our journey! Your safety is our priority.