Abeam
Sailing instruments and chart for iPhone, iPad and Apple Watch.
Abeam shows your boat's NMEA or Signal K Wi-Fi data in a chart view or an instrument view. The instrument view is drawn like marine instrument displays: wind gauge and large-number pages. The chart view shows live true and apparent wind direction, and AIS targets with all of their broadcasted information. It also includes an off heading alarm, anchor alarm, historical graphs for all data, Dynamic Island, Live Activities and an Apple Watch app.
Abeam is free. It is a side project: I wanted a better app for my own boat, so I built this one. If you find it useful, there is a Buy Byron a Pint button in Settings.
Instrument view
- Instrument view with wind gauges, compass rose, speed gauge and large-number pages, with every field customizable.
- Custom data fields: average COG, average heading, SOG against STW, current set and drift, wind shift, VMG.
- Historical graphs for every field, from five minutes to two hours.
- Night mode.
Chart
- Position, heading, track, and true and apparent wind at the boat.
- AIS targets with name, course, speed, CPA and TCPA. Collision alarm.
- Data overlays of your choice on the chart.
Alarms
- Anchor alarm with a set radius, using the boat GPS or the phone GPS.
- Off course alarm with port and starboard limits around the heading.
- Alarms also arrive as notifications when the screen is off.
Lock Screen and Apple Watch
- Live Activities in the Dynamic Island and on the Lock Screen, with the fields you choose.
- Apple Watch app with the same fields and a complication.
Connections
- NMEA 0183 over TCP or UDP
- NMEA 2000 gateways such as Yacht Devices YDWG-02 and Actisense W2K-1
- Signal K server
The app opens on sample data, so it can be tried without a boat.