Migrate · 6 min read

How to migrate clients off Trainerize without a messy week

The fear is not the new product. The fear is a week where nobody knows where tomorrow's session lives. Treat the move as a single loop, not a project.

Updated 2026-09-14

Export what you actually need

Clients: name, email, status. Workouts: the days you still use, not every archived block from 2019. You cannot rebuild a wrong email.

Drop the CSVs on the desk

Tarna's import page takes client and workout CSVs. Emails match. Duplicates update instead of cloning. Plan limits stop cleanly and tell you who did not land.

Invite once

Send the join link. The client sets a password, sees today's exercises — not just a title — and adds the app to the home screen. Airplane mode still opens the session after the first load.

Run one real week before you cancel the old seat

Assign tomorrow. They log. You see the check-in. Then turn off the old product. Overlapping two apps for a month is how people stay on two apps forever.

Questions

Will my clients have to download a new App Store app?
No. They open a link, then Add to Home Screen. The session works offline after the first load.

Open a desk.

Five clients free. Studio is £49. Import a roster or start with one person and tomorrow’s session.

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