ProTrack AI estimates meal calories, protein, carbs, and fat from photos using on-device AI. Review and edit estimates, scan packaged-food barcodes, or log meals manually. Photo analysis works offline; new barcode lookups require internet. No account is required, and meal photos and your diary stay on your iPhone. Track weight, daily goals, and progress with Home Screen widgets. Free to try with limited scans, with weekly subscription and one-time lifetime options.