FORM
AI Calorie Tracker: Describe a Meal, Get the Macros
Weighing every ingredient and hunting through a database for the right "grilled chicken" entry is the reason most people quit tracking by week two. An AI calorie tracker app flips that: you describe the plate in plain English, and it estimates the calories and macros for you. FORM is built around this describe-it approach, with an honest view of when AI is close enough and when a scale still wins.
HOW IT WORKS
Type it like you'd say it out loud
With FORM's describe-it feature (part of Pro), you type something like "big bowl of chilli con carne with rice and a spoon of soured cream" and the AI returns an estimate for calories, protein, carbs and fat. It parses the foods, infers sensible portions from everyday language like "bowl", "handful" or "large", and fills the entry so you can adjust rather than build from scratch. The point is to remove the friction that kills consistency, not to chase a fake decimal-place precision.
ACCURACY
Honest about what AI can and can't know
AI is very good at recognising foods and typical portions, and less good at things it cannot see: the exact oil a kitchen cooked with, hidden butter, or how heaped your "one cup" really was. So treat the estimate as a strong starting point you can nudge, not gospel. For packaged food, FORM also includes a free barcode scanner powered by Open Food Facts, which is more exact when a label exists. Use AI for the messy homemade and eating-out meals, and the barcode or a quick weigh for anything where precision genuinely matters to you.
EATING OUT
Snap a menu, see dishes ranked against your budget
Restaurants are where tracking usually falls apart. FORM's menu-photo steering lets you photograph the menu and see dishes ranked against the calories and macros you have left for the day, so you can pick the steak-and-greens or the pasta with eyes open rather than guessing. It is steering, not policing: nothing is forbidden, and there are no red warning numbers. You just get a clear read on what fits your remaining budget before you order.
CONSISTENCY
A number you'll actually keep logging
The most accurate tracker is the one you still use in month three. Because describe-it and menu-photo cut logging down to a sentence or a photo, the awkward meals get captured instead of skipped, and a skipped meal is a far bigger error than a slightly-off AI estimate. FORM leans on this with a consistency mosaic that rewards showing up, and adaptive weight-trend targets that quietly rebalance from your real results rather than a one-off formula.
BEYOND LOGGING
Where the estimates feed into
Logging is only useful if it drives something. FORM pairs AI macro tracking with adaptive targets that adjust to your weight trend each week, so a busy stretch of rough estimates still steers you in the right direction over time. Free-forever features cover logging food, the recipe bank, generating workouts and tracking weight, while Pro adds describe-it AI macros, plan import, progress photos and the budget meal planner. Pricing is around £59.99 a year or £9.99 a month, so check the current terms in-app.
FAQ
Frequently asked questions
How accurate is an AI calorie tracker?
For recognising foods and estimating typical portions it is genuinely useful, and for homemade or restaurant meals it beats the guesswork of not logging at all. It is less exact with things it cannot see, like cooking oil or hidden butter, so treat the number as a strong starting estimate you can adjust. When precision matters, FORM's free barcode scanner or a quick weigh is more exact.
Can I just describe a meal instead of weighing everything?
Yes. That is the core of FORM's describe-it feature. You type the meal in plain English, for example "two eggs on toast with butter", and the AI fills in the calories and macros for you to tweak. It is designed to remove weighing and database searching for the meals where that friction usually makes people give up.
Does FORM have a photo calorie tracker for eating out?
FORM's menu-photo steering lets you photograph a restaurant menu and see the dishes ranked against the calories and macros you have left that day, so you can order something that fits without guessing. It is built to steer your choice, not to shame it, so there are no red numbers or forbidden foods.
Is the AI macro tracker free?
FORM's free-forever tier covers logging food, the recipe bank, generating workouts and tracking weight, and the barcode scanner is free too. The describe-it AI macros and menu-photo steering sit in Pro, which is around £59.99 a year or £9.99 a month. Check the current terms in the app.
What if the AI gets a portion wrong?
You can edit any estimate. The AI fills the entry as a starting point, then you nudge the portion or swap an item if it misjudged. Over time FORM's adaptive weight-trend targets rebalance from your actual results, so occasional estimate errors get smoothed out rather than derailing your progress.
Keep reading
Nutrition and training, one app
Free forever to start. Log food, scan barcodes, generate workouts and track your weight, with targets that adapt as you go.
Download FORM for iPhone