SonarBridge

Content rating
Everyone
1+
Downloads
Content rating
Everyone
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Screenshot image
Screenshot image

About this app

SonarBridge turns your Wi-Fi portable fish-finder sonar into a live depth and water-temperature source for your favourite marine navigation app.

Connect your phone to your sonar's Wi-Fi, open SonarBridge, and it automatically reads the depth and temperature and broadcasts them as standard NMEA 0183 data on your device. Your navigation app (such as Navionics Boating) can then show live depth right on the chart.

FEATURES
- Live depth and water temperature, big and clear
- Automatic background sending - keep your chart app in front
- Standard NMEA 0183 output (DBT + MTW)
- Units in meters, feet or fathoms; degrees C or F
- Available in 7 languages
- Simple one-time setup, then it reconnects on its own

Free 7-day trial, then a low monthly subscription or a one-time lifetime purchase.

SonarBridge is an independent app and is not affiliated with or endorsed by any sonar or chart-app manufacturer. Compatibility depends on your equipment.
Send sonar depth & water temperature to your marine navigation app.
Updated on
Aug 14, 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
  • No data collected
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What’s new

Bug fixes and improvements to purchases and stability.