Zephyr Lab

Every fitness data deserves a place to live, and privacy

Free · account required

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.

TrainingFoodBody

Live · Pro is a one-time purchase

Record a run on your smartwatch and don't know where the data went? We got you. We support reading advanced running metrics from major smartwatch brands, so you can see what your watch is not telling you.

On deviceTrendsInsights

Coming soon

Connect with your client who's using ZephyrFit or ZephyrRun, and plan ahead without opening 20+ spreadsheet tabs on your phone.

PlansClientsReview Join the waitlist ›

The lab

Founded in Toronto, 2026. Zephyr — the face on the mark — is an Alaskan Malamute.

We build quiet fitness software: honest data, no gamification, no praise, no streaks. Charts carry the screen; words stay short. Your numbers belong to you — each app states its data boundary once, in one policy.

One policy owns the data boundary. Privacy & terms ›