Go! - Start Clock

4.8
173 reviews
10K+
Downloads
Content rating
Everyone
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About this app

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.

More info: stigning.se
Updated on
Oct 22, 2025

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
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No data collected
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Ratings and reviews

4.8
141 reviews
Mark Cosens
April 6, 2024
Exactly what I've been looking for after trying many many apps. No ads or other irritations. I needed a countdown timer with 5 second beeps for a cycle race, 20 seconds between each rider. This does exactly what I want. A nice addition would be to display the time along with the countdown seconds. Plus the ability to pause the timer. Great work!
1 person found this review helpful
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Rob
October 7, 2023
Very useful to avoid carrying a full size clock to remote areas. Only a few percent battery used after 1 hour. A minor observation is that the 'get ready' beeps are not quite at regular 1s intervals.
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A Google user
January 18, 2019
Very handy, like it :-) Would it e possible to import start list from excel using columns instead of using comma PC version ? Regards Knut
4 people found this review helpful
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What’s new

Import of teams from XML file (IOF data standard 3.0).