Cal AI alternative: Renzy vs Cal AI
Both scan your food from a photo. Renzy checks common foods against BEDCA and USDA, and also opens in a desktop browser.
Cal AI
Why switch from Cal AI?
No browser version
Its website only links to the App Store and Google Play, with no browser version (we checked in October 2026). Besides iOS and Android, Renzy opens in the browser with your account.
When to choose Cal AI over Renzy
Cal AI does the same essential thing we do — photo, calories, macros — with a very simple interface and almost nothing to configure. If all you want is to open, shoot and see a number, that simplicity works in its favour. It also comes in 15 languages and reads barcodes. And if your friends already use it, that is a reason no feature table shows.
The verdict
This is the fairest comparison of the set, because both apps start from the same idea: photo first. The difference is not the scan, it is what sits around it. Renzy publishes its scanner's error every week at /precision instead of promising round accuracy, and besides iOS and Android it opens in a desktop browser. If you want the minimal version of photo scanning, Cal AI delivers. If you want to see how far off the scanner is and follow your day from a computer too, Renzy.
FAQ
Which is more accurate at scanning food?
No app can give you an exact figure from a photo: the portion is estimated, and that is where most of the error lives. What you can demand is that they tell you how wrong they are. We publish our average error at /precision and keep it updated — compare it against whatever any alternative publishes before believing a number.
Does Renzy work without installing the app?
Not entirely: the account is created in the iPhone or Android app. After that you can also sign in from a desktop browser and log from there — useful for meals at the office and for reviewing your week on a big screen.
Does Renzy work for Spanish food?
Yes. Foods are checked against BEDCA, the Spanish food composition database, as well as USDA, so dishes and products common in Spain do not depend on a database built for another market.
Scan your food and see your daily goal
Photo scanning, barcode and a web app.
Try Renzy for 7 days7 days free · card required · cancel before day 7 and you pay nothing