Create your account

So your plan, your logs and your groups stay yours.

Sex at birth

Asked once, here, and saved. Strength norms and bone-density considerations differ, so every plan is programmed from it.

Ten characters or more. Your password is hashed by Supabase and never stored, logged or seen by Aion — not even by whoever runs it.

Next: seven safety questions, then how you want your plan written. About three minutes.