Byrn

Your coach - Programmed daily

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

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.

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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.

Version 1.0.1

The developer, Riley Brennan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Health & Fitness
    • Contact Info
    • User Content
    • Identifiers

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Contact Info

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Riley Brennan
Size
  • 3.3 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 18.0 or later.
  • iPhone
    Requires iOS 18.0 or later.
  • Mac
    Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 2.0 or later.
Languages
  • English
Age Rating
9+
Copyright
  • © 2026 Riley Brennan
  • Developer Website
  • Privacy Policy