Your race stays yours.

Nothing leaves your phone until you tap Upload to Strava.

TriSplit Privacy Policy

Effective November 13, 2026

TriSplit is a free iPhone app made by Jordan Sellers. It splits a triathlon or other multisport workout recorded on your Apple Watch into separate swim, bike and run activities and uploads them to your Strava account. This policy explains what data TriSplit uses and what happens to it.

The short version

TriSplit has no accounts, no ads, no analytics and no tracking. Your workout data stays on your iPhone until you tap Upload to Strava, and then it goes straight from your phone to Strava. We never receive or store your health or workout data.

Data TriSplit reads from Apple Health

With your permission, TriSplit reads multisport workouts recorded by your Apple Watch, including start and end times, swim, bike, run and transition segments, heart rate, distance and GPS route. You choose what TriSplit can read in Apple Health, and you can change that at any time in the Health app or in iPhone Settings. TriSplit does not write anything to Apple Health.

Data sent to Strava

When you tap Upload to Strava, TriSplit sends the legs you selected (times, heart rate, distance and route) to Strava, along with the activity name and description shown on screen. Nothing is sent to Strava until you tap Upload. Once uploaded, those activities are governed by Strava's own privacy policy and settings.

Connecting to Strava

To upload, you sign in to Strava and allow TriSplit to read and create activities on your account. Strava returns access codes that TriSplit stores in your iPhone's Keychain. A small TriSplit server is used only to swap those codes with Strava, because Strava requires a secret key that can't be kept in the app. That server does not store or log your codes, your Strava profile or any workout data.

Data stored on your iPhone

TriSplit keeps your Strava access codes in the Keychain and a short list of which legs you've already uploaded, so it can warn you about duplicates. Both stay on your iPhone and are not backed up to iCloud by TriSplit.

What TriSplit does not do

No sale, rental or sharing of your data with anyone other than Strava, and only when you tap Upload.
No advertising, marketing or data mining with your health or fitness data.
No analytics, crash-reporting or advertising tools in the app.
No storage of health data in iCloud.

Your choices and deleting your data

Disconnect Strava in TriSplit's Settings. TriSplit revokes its access with Strava and deletes the stored access codes and upload list from your iPhone right away. If Strava can't be reached, tap Remove from this phone to delete them anyway.
You can also remove TriSplit's access on Strava's website under Settings, My Apps.
Deleting the app removes everything TriSplit stored on your iPhone.
Activities already uploaded live in your Strava account. Edit or delete them in Strava.
To ask a question or confirm that your data has been deleted, email [email protected]. We reply within 30 days.

Children

TriSplit is not directed to children under 13 and does not knowingly collect data from them.

Changes

If this policy changes, the new version will be posted on this page with a new effective date.

Contact

Jordan Sellers, [email protected]