Sail Buddy 4+

Tim Herzog

Designed for iPad

    • 4.6 • 14 Ratings
    • $4.99


Sail Buddy is a light-weight app that displays course, speed and NMEA data in a fast, clean interface. This is not a "kitchen sink" application with lots of features you may or may not use. If you want a clean, easy-to-read data display to complement your navigation and weather apps, this might be the one for you. Also works very well on iPads and other tablets, including "split screen" mode so you can use other navigation apps side-by-side. And the Apple Watch lets you keep track of course, speed and essential data, hands free, no matter where you are on your boat!

Sail Buddy receives NMEA data from external hardware via a WiFi connection. Your hardware must support WiFi or be connected to a multiplexer with WiFi support. Sail Buddy includes a "demo" mode that plays sample NMEA data if you just want to see how the app works without connecting to an NMEA network.


• Displays course and speed and NMEA data in a large, easily read display
• Support for TCP and UDP connections
• Support for Sail Timer wind instrument™ and Sail Timer wind vane™
• Route tracking with full capture of GPS and NMEA data
• Export routes in CSV, KML, GPX and GeoJSON
• Alarms for lost data connections and potential groundings (if your hardware supports depth data)
• Start and stop instruments and tracking with your Apple Watch
• Supports Split View on newer iPads (use Sail Buddy alongside your favorite navigation app)

What’s New

Version 3.0

Version 3.0 adds a separate tab for monitoring unprocessed NMEA data. You can filter which messages are reported, and export via email, messaging and other services. Great for analyzing your electronics setup; even if you don't use Sail Buddy for navigation!

Ratings and Reviews

4.6 out of 5
14 Ratings

14 Ratings

aOld Tom ,

Outstanding Value

Sail Buddy is a simple and inexpensive app that squarely hits the sweet spot. I wanted something to display wind, speed and depth data by the wheel where I could see all clearly. This app turns my iPhone into a multifunctional display presenting all the desired information in an easily readable format. Literally saved me thousands.

JamIsMyJam ,

Clean, simple app that works well

Just downloaded this to try the GPS and tracking features - they work well and I appreciate the large, clear display that's easy to see outdoors or when moving.

Simeoniii ,

Great App, needs a tweak

I love this app. Have used it stand-alone as well as NMEA with my SailTimer Wind Instrument.

I would like to be able to toggle in Configuration between True and Magnetic Course readings to display in the Navigation panel.

Also, I would like the option to display Lat/Long in degrees-minutes-decimal minutes. Thanks & keep up the good work.

App Privacy

The developer, Tim Herzog, 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.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

You Might Also Like

SailTimer API - WMM™
Speedometer App 2
Inflight Map