Zephyr Lab

Every day, accounted.

A home for all your fitness data. Running, strength training, cardio, nutrition, sleep… you name it. No more switching between 5 different apps every day.

iOS · free
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The day at a glance

Widgets you arrange: macros, goals, recent activities, trends, fully customizable.

One tap from anywhere

At the gym, in the kitchen, on the track, or winding down for the night… log what matters without breaking your flow.

Built for mid-set hands

Select from our broad library of workouts (or create your own) and see your weightlifting progression over time.

The trend is a mirror

See how your habits, training, nutrition, and recovery have changed over time — so you can recognize what's working and where you're headed.

ZephyrFit Today screenThe training logPush day as a sheetFood history
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