LIFE1 › Lean

A weight loss app that plans the day, not just counts it.

Pick the Lean protocol and LIFE1 turns it into today: what to eat, when the fasting window closes, which session is on, and one Health Score that moves as you complete it. Free, no subscription, no ads.

Log a meal in seconds

Scan a barcode, a nutrition label, the plate in front of you or a restaurant menu. LIFE1 fills in the nutrition panel with percent daily values and scores the meal against your protocol. A seven-day meal plan builds its own grocery list, and one tap sends it to Instacart.

Fasting that fits real life

The fasting timer has an editable start, so a late dinner does not break the record. The ring is on your phone and, with Apple Watch or Wear OS, on your wrist.

Training you can actually do

Pilates Burn, HIIT Fat Burn, Lift and Longevity Flow in HD, with set logging and live heart rate from the wearable you already own. Route recording for a walk, run, ride or hike.

Your weight, as recorded

Weight, resting heart rate, sleep and more are drawn exactly as logged, with no thresholds and no interpretation. Export a clean PDF or CSV for your physician whenever you want.

One Health ScoreOne number from your meals, training, readings and wearable data, with the breakdown of how it was built.
Your data is yoursExport everything or delete everything from Settings. Nothing sold, nothing locked in.
Every wearableApple Watch, Galaxy Watch, Pixel Watch, Oura, Whoop, Garmin, Withings and Polar through Apple Health and Health Connect.
Three languagesEnglish, French (Canada) and Spanish (Mexico).
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Questions

Is LIFE1 a free weight loss app?

Yes. LIFE1 is free on the App Store and Google Play, with no subscription and no ads.

Does LIFE1 tell me how much to eat?

The Lean protocol sets calorie and macro targets from the goal you choose, and the app shows how each logged meal lands against them. It does not diagnose or give medical advice.

Does the fasting timer work on a watch?

Yes. The fasting ring, Health Score and your next item are on Apple Watch and on Wear OS.

Which wearables does it read?

Any device that writes to Apple Health on iPhone or Health Connect on Android, including Apple Watch, Galaxy Watch, Pixel Watch, Oura, Whoop, Garmin, Withings and Polar.

LIFE1 shows what you measured and what published guidelines say. It does not diagnose, interpret or treat. This page is general information, not medical advice.