God Save the Sport
Your workouts, sleep and recovery, explained by your own history. On your phone, with no account.

Your sport comes first
Swimming, running or cycling: tell GSTS once, and it leads with what matters for your sport. Distance, time and pace, against your previous 4 weeks.

Your numbers, explained by you
GSTS reads your workouts, heart rate and sleep from Apple Health or Health Connect and shows what they mean for you: every number is compared with your own average, never with someone else's.

Your data, yours to take
Everything stays on your phone. There's no account, no advertising and no tracking. Export your workouts and daily values as spreadsheet files whenever you like. Read Privacy policy.

Our mission
GSTS exists to preserve what is still human and healthy: doing sport. Your body, your effort, your sweat and your rest. Technology only serves that: it reads your data, explains it with your own history and leaves every decision to you.
Free, with GSTS Pro once
The app is free: today's numbers, your last 30 days and export of your data. GSTS Pro is a one-time purchase for your full history, advanced training charts and sport details. No subscription.
Coming soon
GSTS for iPhone and Android is in testing. Screens show sample data. Questions? See Support.
GSTS is for training and wellbeing. It is not a medical device and gives no medical advice.