Track the trend,
not the number.

A calm, offline-first weight tracker for Android. Understand your body with honest math, smooth trends, and Google Health Connect sync. No accounts, no ads, no subscriptions.

✓ 100% Offline-First ✓ Zero Tracking SDKs ✓ Google Health Connect ★ One-Time Unlock $1.99
Design Principles

Built for honesty and privacy

Most weight apps bury progress under subscription walls, cloud accounts, and intrusive ads. Lighter is different.

⚡

Fast, Calm Logging

Log your weight in under 3 seconds. Add optional body-fat percentage and notes without navigating clutter or waiting on network spinners.

📈

Smart Trend Pace

Daily weights fluctuate naturally from water and food. Lighter calculates least-squares regression pace to show your real trajectory and projected goal date.

🔒

100% Private & Local

Stored in a local SQLite database on your device. We run zero servers and collect zero telemetry. Optional biometric fingerprint or face lock keeps it confidential.

🔄

Health Connect Sync

Two-way synchronization with Google Health Connect. Automatically ingest weigh-ins from smart scales (Withings, Garmin, Fitbit) and share records back.

🎯

Healthy Guidance

Clear BMI category bands, healthy weight bounds based on height, and ideal weight targets tailored to your profile with zero shame or judgement.

📦

Never Trapped

Your health history is always yours. Export your full diary to a clean CSV spreadsheet or backup all settings and entries to JSON anytime with one tap.

Fair Monetization

Free forever, or upgrade once

No recurring subscriptions. The free tier contains everything you need to track weight and reach your goal. The one-time Lifetime unlock adds advanced tools.

Feature Free Lifetime ($1.99)
Daily weigh-ins (weight, body fat %, notes) ✓ ✓
Dashboard, streak & goal ring ✓ ✓
Trend chart & time filters (7D, 1M, 6M, 1Y, All) ✓ ✓
Pace estimation & projected goal date ✓ ✓
Google Health Connect two-way sync ✓ ✓
Full JSON Backup/Restore & CSV Export ✓ ✓
Biometric app lock & daily reminders ✓ ✓
Body measurements tracking (waist, hips, chest, arms, thighs) — ✓
Private on-device progress photos with side-by-side compare — ✓
Body composition charts (body fat, lean mass, fat mass) — ✓
Monthly comprehensive reports — ✓
Home-screen Android glance widget — ✓
Unlimited profiles (family & household) — ✓

Ready to focus on your real progress?

Download Lighter on your Android device today. Free forever, no registration needed.

Get Lighter for Android