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Zero — Fasting Tracker
The most popular intermittent-fasting app in the world. I built the first Android version from the ground up and helped grow it to millions of users.
ClientZero · Big Sky Health
RoleLead Android Engineer
PlatformAndroid
Year2019–2022
Overview
Zero is a health and wellness app for tracking intermittent fasting and the habits that support a longer, healthier life. I was hired to build the initial Android version of Zero and went on to lead and grow the Android team as the app scaled to millions of users.
What I built
- The Android app from the ground up, centered on a fast, friction-free fasting tracker.
- Data integrations with Google Fit and wearables to fold sleep, movement, and biometrics into the picture.
- A food and habit tracking feature, challenges to keep people motivated alongside friends, access to a deep content library, and the subscription experience behind Zero Plus.
The result
Zero became the category-defining fasting app, and the Android client I started grew into a product used by millions. Leading the Android team there shaped how I think about building health software that’s both rigorous and genuinely easy to live with.