Roundrix
Beta Testing

A Workout Timer Built For Real Sessions

Roundrix gives you a wide range of timer modes for any training goal, plus reactive actions, heart-rate context, and easy Apple Watch launch.

Open TestFlight App Store Link Coming Soon

We are currently in beta testing. Public release is expected soon.

Advanced Workout Analysis

Get clear post-session analysis across effort, recovery, and pacing so every workout becomes actionable.

Built-in Coach Assistant

Roundrix includes an assistant coach that turns your session data into practical recommendations for your next training block.

Reactive mode with heart-rate context
Recovery extension and built-in coaching insights
Large collection of timer modes
LLM coach analysis screen
Session summary with score
Detailed workout history
Reactive + Pulse

Unexpected actions and heart-rate context in one flow

Build sessions that feel alive with random cues, reactive prompts, custom actions, and flexible interval logic.

Heart-rate context stays next to the timer, so you can see how your body responds in real time.

Start workouts from Apple Watch
Apple Watch session state during workout
Apple Watch Flow

Start from your watch and stay in control

When your phone is not in hand, launch sessions from your wrist in one or two taps.

Core timer states stay visible on Apple Watch, so your training rhythm remains consistent from start to finish.