Photo logging
Point the camera at any meal, from a plated dinner to a restaurant bowl. Diat identifies each food, estimates the portion and logs it. Daily photo logs are included free.
The free calorie counter app that logs meals from a photo
Most calorie counter apps make you search a database and weigh every portion. Diat reads the plate for you: take a photo and it names the food, estimates the portion and logs calories, protein, carbs and fat in about two seconds. Free to download on iPhone and Android, no card required.
A real free tier, not a seven-day trial
Premium removes the daily limits and adds unlimited logging, advanced nutrient breakdowns and the AI coach. You can use Diat every day without it.
Barcode scanning
Scan a packaged food and the label's nutrition facts go straight into your day. Included in the free plan.
Calories, protein, carbs and fat
Every log shows the full macro split against your daily targets, so you always know where you stand before the next meal.
A personal calorie budget
Diat builds a daily calorie and macro target around your body, goal and activity level, so every log is measured against a number that is actually yours.
Manual search and recipes
Prefer typing? Search a verified food database, save your own meals and browse recipes that fit the calories you have left.
Fasting timer
Track 16:8, 18:6 or your own window alongside your food log. Included free with daily limits.
Three steps, no typing
- 01
Take a photo
Open Diat and point the camera at your plate. It works on a single dish, a full plate or a takeaway box.
- 02
Check the estimate
Diat lists what it found with portions and calories. Tap any item to adjust the amount or swap the food.
- 03
See what is left
The meal is logged against your daily calorie and macro budget, and your dashboard updates in place.
Photo vs. the alternatives
Why a photo beats searching and weighing
Every free calorie tracker app gets the same result if you log every meal. The difference is how many meals you actually log. Here is what each method costs you per meal.
- Highly recommended
Photo (Diat)
- Time per meal
- ~2 seconds
- What you need
- Your phone camera
- Where it fails
- Hidden ingredients like oil or sauce; you can correct the estimate with a tap.
- Alternative
Barcode scan
- Time per meal
- 5 to 10 seconds
- What you need
- A packaged food with a label
- Where it fails
- Anything cooked, plated or from a restaurant.
- Alternative
Database search
- Time per meal
- 30 to 90 seconds
- What you need
- The right name, brand and portion size
- Where it fails
- Mixed dishes, home cooking and anything you cannot name exactly.
- Alternative
Kitchen scale
- Time per meal
- 2 to 5 minutes
- What you need
- A scale, and to be at home
- Where it fails
- Every meal eaten away from your own kitchen.
Who it is for
Built for people who quit other calorie counter apps
Losing weight
A steady deficit only works if you log the meals you eat, not the ones you remember to type in. Photo logging keeps the diary honest on busy days.
Tracking macros
See protein, carbs and fat per meal and per day. Diat is a free macro tracker as much as a calorie counter.
Eating out a lot
Restaurant plates and takeaway have no barcode and no database entry. A photo is the only method that still works.
Intermittent fasting
Log your eating window and your meals in the same app instead of running two.
FAQ
Questions about the free plan
Is Diat really free?
Yes. Diat is free to download and use, with generous daily limits on photo logs, barcode scans and fasting tracking. A Premium subscription removes the limits and adds unlimited logging, advanced nutrient breakdowns and the AI coach.
Do I need to enter a card to start?
No. You can install Diat from the App Store or Google Play and start logging without entering any payment details.
How accurate is calorie counting from a photo?
Diat identifies the foods on the plate and estimates portions from the image. For most home-cooked and restaurant meals the estimate lands close to what a careful database search gives, in a fraction of the time. Where a photo cannot see an ingredient, such as cooking oil, you can add it with a tap. The nutrition figures come from published food composition databases; see our data sources page.
Does Diat work without a photo?
Yes. You can scan a barcode, search the food database or enter a meal manually. Photo logging is the fastest option, not the only one.
Is Diat available on Android and iPhone?
Yes. Diat is available on the App Store for iPhone and on Google Play for Android.
How is Diat different from other free calorie counter apps?
Most free calorie counters are databases with a search box; logging a meal means finding the right entry and guessing the portion. Diat starts from a photo, so the meal is logged before you would have finished typing. Barcode scanning, macros, a calorie budget and a fasting timer are all part of the free plan.
Have more questions? Contact us at support@diat.app
Log your next meal with a photo
Free on iPhone and Android. No card required.
