Trace: Weight Loss Tracker

Trace is a simple, private weight loss tracker and journal for your whole journey. Log your weight, progress photos, meals, activity, and sleep, then watch the trend line and your photo timeline show what's really working.

Your weight, progress photos, and notes stay on your device. No account, no sign-up, no cloud sync — your body data never leaves your phone.

TRACK YOUR WEIGHT LOSS, ALL IN ONE PLACE

- Weight: fast daily entry in kg or lb, shown on a clean weight trend chart

- Progress photos: a private body-photo timeline so you can see real change over time

- Meals: a simple food diary with light, normal, or heavy portion tags — no calorie counting homework

- Activity: walks, gym sessions, and steps

- Sleep: hours per night

SEE YOUR WEIGHT TREND, NOT THE DAILY NOISE

- Weight loss trend chart with your total change and a weekly summary

- On-device insights: your average rate of loss per week and a projected goal date

- A logging streak to help the daily habit stick

Daily weigh-ins bounce around — Trace smooths the noise so you can see whether your plan is actually working.

PROGRESS PHOTOS, COMPLETELY PRIVATE

Take front/side photos on your schedule and scroll a private progress timeline. Photos are stored only on your device — never uploaded, never synced, locked behind your fingerprint if you choose. The scale tells one story; your photos tell the rest.

PRIVATE BY DESIGN

- Your weight, progress photos, and notes are stored only on your device — never uploaded, never synced

- Optional app lock with fingerprint or face unlock

- Encrypted backups you control: export and import your own data

- No account required. Free and supported by ads (a banner and an occasional full-screen ad) — no subscription, no paywall

- The network is used for ads, usage analytics and crash reporting — and, only when you scan a meal photo, to send that photo through our server to Google's Gemini AI for analysis. Your weight, progress photos and notes are never sent

WORKS WITH HEALTH CONNECT (ANDROID)

Optionally sync your steps and last night's sleep from Health Connect — only with your permission, and the data still stays on your device.

PERFECT FOR

- Anyone starting a weight loss journey who wants a calm, honest picture

- Daily weighers who want the trend, not the noise

- Progress-photo takers who don't want body photos in anyone's cloud

- Habit trackers logging meals, activity, and sleep in seconds a day

SIMPLE BY DESIGN

No diet plans, no calorie database, no social feed, no subscription. Just a fast, private weight loss journal that shows the trend and keeps your data yours.

Set your goal, log a few seconds a day, and let the trend do the rest. Download Trace — the private, offline weight loss tracker.