Go! - Start Clock

Start Clock is used to start contestants in a race, for example, in orienteering, stair climbing, cross country skiing, down hill skiing, rally, and, radio-controlled cars. Or use it as a watch, optionally GPS synchronised.
Highlights:
- Interval start.
- Chasing start (pursuit racing).
- Works on phones and tablets of various sizes.
- Configurable, many different user settings.
Basic functionality:
- Gives an audible prewarning (beeps 10 sec before start).
- Beeps on the seconds before start (Get Ready beeps at 55-56-57-58-59 sec).
- Beeps even more on the start sec.
- The actual time settings are user-controlled.
Time display:
- Current time.
- Countdown of seconds until next start.
- Time relative to a given zero time point.
Time offset:
- Show call-up time (3 min ahead, at 3 start boxes and 1 min start interval).
- Align time with the timing system of the race.
- Postpone the race and keep the original start times.
Colours:
- Light or dark colour theme.
- User selectable text and background colours for Normal time, Get Ready time, and Start time (can resemble a traffic light).
- Starting window, shows green before/after the start signal.
Screen background:
- One-coloured background.
- Image (a photo, the club logo, a custom-made background picture).
- Two short text messages can be overlayed.
Start list:
- Interval start: Shows the participants who will start at the next start signal.
- Chasing start (pursuit racing): Displays each competitor as his/her start time is approaching, then gives a start signal.
- Import of XML file in accordance with IOF Data Standard 3.0 (can be produced by OLA, OE2010, tTiMe and others).
- Import of CSV file (comma-separated values, tool and template are available).
GPS support:
- Time synchronisation using device's built-in GNSS receiver (Global Navigation Satellite System; GPS, Glonass, Beidou, Galileo, IRNSS/NavIC, QZSS).
Other features:
- False start. Detect a false start by connecting an external start gate to the device.
- Camera. Take a picture at the starting signal.
No advertisements. Does not gather or disclose any data.
GNSS synchronisation: https://youtu.be/izDB5CW5JyI
More info: https://stigning.se/