Byrn

A coach that writes each day's training session around your goals, your schedule, and your history; and gets sharper every time you log a set!

Byrn is your coach, not a template library.

Every day, Byrn writes a session built for exactly you — your goals, your schedule, your equipment, what you lifted last time, and how it felt. Log your sets with one tap and tomorrow's programming gets smarter.

TALK TO IT LIKE A COACH "Only have 40 minutes." "Wrist's sore, skip curls." "Make today legs." Byrn rebuilds the day on the spot.

PROGRESS THAT COMPOUNDS — Estimated 1RMs charted over time, scrollable and zoomable — Per-lift goals that turn medal-gold when you hit them — Streaks normalized to YOUR schedule — rest days never break them — A session receipt and PR detection every time you finish

BUILT FOR THE GYM FLOOR — One-tap set logging with prescription autofill — Swipe between days, flick the session-type wheel — A 6pm nudge on training days if the session's still waiting

Byrn is invite-only and rolling out gradually — join the waitlist and your invite will land in your inbox, or enter your code if you already have one.

Coaching is AI-generated and not medical advice.