The honest one-liner
If you're on iOS and the database-and-barcode workflow has burned you out, switch to CalorieScan AI. If you're on Android or live on packaged products, stay with MyFitnessPal.
About MyFitnessPal
MyFitnessPal pioneered consumer calorie tracking and still has the largest food database. The workflow is built around search and barcode scanning.
Pricing: MyFitnessPal: free tier with ads, Premium ~$19.99/mo or $79.99/yr. CalorieScan AI: free tier (5 photos/day, no ads), Premium $9.99/mo.
Platforms: MyFitnessPal: iOS, Android, web. CalorieScan AI: iOS only.