Chompass - Calorie Tracker for Android

Chompass is a calorie tracker by fitguy that helps you log meals and monitor your daily nutrition without ads or accounts. Built as a fork of Fud AI, it focuses on privacy and flexibility: your data stays on your device by default, and you can choose whether to use your own cloud AI key or an optional on-device model. The app is designed for people who want a modern, AI-assisted food diary but are uncomfortable with the tracking and analytics found in many commercial apps.

You can log meals in several ways: take one or more photos, speak a description, scan a barcode, type the details manually, or share content into the app from elsewhere. Barcode scanning uses the Open Food Facts database, which contains over 4.6 million products, and results are cached so you can look them up offline. The photo analysis can even read a barcode directly from the image, saving you an extra step. Saved meals and recipes make repeat logging quicker.

The app also tracks more than calories. You get a live calorie budget that adjusts to your daily activity, whether that activity comes from Health Connect, manual entry, or an estimate based on your 14-day average. Weight, body fat, steps, exercise, and sleep can all be recorded or synced. Health Connect integration is two-way, so you can write meals and body metrics out and read heart rate, hydration, steps, and energy in. Everything is stored locally, and your diary and body metrics can be exported as JSON, Markdown, or CSV.

Chompass is free and open source under the GPL-3.0 license. It requires Android 8.0 or newer and the installation file is about 20 MB. Because it avoids accounts and analytics, it suits users who value control over their personal health data and prefer an ad-free experience.

Key features

• Ad-free with no analytics SDKs and no account required
• Log meals via multi-photo capture, share-into-app, voice, barcode, manual entry, and saved meals or recipes
• Barcode scan with Open Food Facts lookup (4.6M+ products) cached for offline use; photo analysis can read codes from the image
• Optional on-device AI (Gemma 4 via LiteRT-LM) with a one-time model download, requiring arm64 and 6 GB+ RAM
• Live calorie budget ring that incorporates daily burn from Health Connect, manual entry, or a 14-day active average
• Two-way Health Connect sync for meals, weight, body fat, height, sleep, heart rate, hydration, steps, and energy
• Local-first storage with encrypted API keys on device; export diary and body metrics as JSON, Markdown, or CSV

How to install

1. Tap the download button on this page to get the APK file (about 20 MB).
2. When Android asks, allow your browser or file manager to install apps by enabling the "Install unknown apps" setting for that app.
3. Open the downloaded APK file from your notifications or file manager.
4. Tap Install and wait for the installation to finish; the app requires Android 8.0 or newer.
5. Open Chompass from your app drawer. You can start logging meals immediately without creating an account.

Chompass is for privacy-minded people who want a capable calorie and nutrition tracker without ads, accounts, or telemetry. It also suits users who already have a cloud AI key or who own a high-end Android device capable of running the optional on-device model.

If you enable the on-device AI, download the model once over Wi-Fi to avoid large data usage. Also, connect Health Connect early so your calorie budget can reflect your real activity rather than estimates.

Chompass delivers a modern, flexible way to track calories while keeping your data on your device. Its ad-free, account-free approach combined with multiple logging methods and open-source licensing makes it a solid choice for anyone who wants control and privacy in a diet app.