About this app
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.
Latest release
What’s New
Invite friends from your profile (4 invites each, resendable), tap any exercise name for its full history, one-tap set logging that always fills the next set, smarter autofill for added-weight prescriptions, a clearer optional goal date, text boxes that grow with what you write, and fixes for save errors and plan display glitches.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 4, 2026 · 4:46 AM Free
Screenshots
