Best AI calorie counter apps in 2026

MacroFactor, Cronometer and MyNetDiary go deeper on food than fitvee does, and the scores say so.

Photo logging sits behind a payment nearly everywhere, so the score turns on what else that payment brings.

This is where fitvee stops being a calorie counter. The others are scored on food and price, their home ground, though MacroFactor pairs with its own Workouts app21 and MyNetDiary’s Premium Plus has an AI diet coach.

The clearest test so far came from US National Institutes of Health researchers, who ran photos of 102 weighed meals through four photo calorie apps: MyFitnessPal, Lose It, Cal AI and Appediet. All four read low, by about 250 to 345 calories a meal on average and about 30 g of fat, while carbs held up best. The figures are preliminary, from a meeting release, and apps change.

Across 52 papers, calorie errors ran from close to nothing up to 38%, smallest on single or simple foods24. Reviews of the technology explain why: naming a food is easier than judging how much is on the plate25.

fitvee wasn’t in that test, and no camera gets a free pass on portion size. So here’s how we’d use any app on this page: a photo for a plain plate, a sentence for a mixed one, a barcode for anything in a wrapper, and a look at the amounts before you log.

Calories keeps it simple. A box asks “What did you eat?” and takes up to 300 characters. Tap the mic and your words fill it for you, where your browser supports speech recognition (not Firefox). “2 eggs and toast” comes back as Eggs, “2 large eggs (100 g)”, 143, and Toast, “1 slice (30 g)”, 79, with Protein 15 g, Carbs 15 g and Fat 11 g underneath.

The camera works the same way. Photograph a plate and it reads up to 12 foods, each with a portion, grams, calories and macros, and pins each one it can place to the picture. There’s no daily cap on reads.

Then you’re in charge. If it read two cups of rice and you had one, step the amount down before you press Log. If the read is simply wrong, Not right? is on screen. Log the plate and every food lands together, with Undo for the lot, and you can change any of today’s portions from the day’s list.

Look at the portions first, since that’s where cameras struggle. Then add what a camera can’t see. That missing fat in the test is a good reason to add “cooked in oil” to your partner’s stir-fry.

Not everything needs AI. For anything in a wrapper, Scan food reads the barcode, brings in the macros and skips the guessing. Your regulars need even less: Usual at breakfast offers your three most-logged foods for that time of day.

In 9 studies, chatbots looked promising for activity, with too few results on diet and weight to draw a conclusion29. We rate Vee and Vin as a quick way to change today, not as a dietitian.

The quiz sets your calorie goal and your starting level7. After that the check-in asks how a session felt, then sets the next one a step harder, a step easier or the same23. Add the food row to Today, offered after your first log, and your calories left sit under that session.