AI Macro Tracker · Free on iPhone
Snap a meal.
Get the macros.
Keep going.
Point your camera at dinner. AIM works out calories, protein, carbs, fat and ten more — then lets you correct anything it got wrong just by saying so.
- 14 nutrients on every meal
- Water counted from food
- Caps, not just goals
- Free, no subscription
Track
Today
949
kcal of 2,000 kcal today
1,051 kcal left
Trend
What the others miss
Four things almost no food tracker does
Every macro app can count calories. These are the gaps people hit in week three — and the reason AIM exists.
Water that comes from your food
About 20–30% of your daily water arrives as food rather than drink. AIM estimates water in milliliters from every meal — including the water in the food itself — and tracks it as a nutrient, not a separate glass counter.
Other trackers count glasses and ignore everything you ate.
Any nutrient you care about
Folate before pregnancy. Iron after a lab result. Iodine on a plant-based diet. Add a metric with its own name, unit and goal, and AIM estimates it on every meal from then on.
Other trackers give you three macros and a wall.
Caps and alerts, not just goals
Some numbers are ceilings. Cap added sugar at 25 g, sodas at three a week, sodium, saturated fat, alcohol — daily or weekly. The meal that crosses the line is flagged when you log it, with the amount that did it.
Other trackers only know how to count up.
Ingredient flags with the reason attached
Tell AIM what you avoid and it says so when it turns up. It also flags categories with a documented history — cocoa and cadmium, rice and arsenic, protein powder and lead — in one plain sentence. Never a number, because a photograph cannot measure contamination.
Other trackers show you a green score and move on.
Limits
Sunday, Sep 13
Caps
The iced latte took you past it.
Custom metrics
Flagged today
Cocoa is a category where consumer testing has repeatedly found cadmium and lead. No amount is measurable from a photo.
You asked to be told about this one.
How it works
Three steps, about eight seconds
Food diaries die from the time they take, not from a lack of willpower. This is the part AIM removes.
AIM
Sunday, Sep 13
Chicken burrito bowl — about 650 kcal and 46 g of protein, same build as before.
Chicken burrito bowl
Lunch · 12:00 PM
9 more
- assumed same build as your previous bowl
- no guacamole or sour cream included
Updated that bowl to a double — 1,322 kcal, 100.8 g protein.
- 01
Snap it or say it
Photograph your plate, or type “chicken burrito bowl”. You get a full breakdown in seconds — broken out ingredient by ingredient, not lumped into one number — with the assumptions it made written out underneath.
- 02
It argues back, politely
Say “actually it was a double” and it revises the meal you were just talking about instead of logging a second one. Ask “how much protein have I got left?” and it answers from today's log without writing anything. It is a conversation, not a form.
- 03
You get the final say
Every number is editable. Tap it, type over it, done. The estimate is a starting point, never a verdict — and your correction sticks, including for the next time you eat the same thing.
What it tracks
Fourteen nutrients as standard. Then whatever else you add.
Pin the handful you are watching to your meal cards. The rest stay recorded and stay chartable — they just live behind “more”.
Energy
Hydration
Plus your own. A custom metric takes a name, a unit and a goal or a cap — folate in µg, omega-3 in g, sodas as a weekly count. From then on it is estimated on every meal like everything else. How custom nutrients work →
Apple Health
Both directions, and only what you allow
AIM reads your active energy and writes back what you ate. Nutrition data is health data — it is treated that way.
Reads your activity
Active energy from Apple Health comes in, so a long run shows up against the day rather than leaving your numbers looking like you overate.
Writes what you logged
Energy and macros go back out to Health, where the rest of your apps can see them. Nothing is written without you turning it on.
Revocable, per type
Permissions are Apple's, granted per data type in the Health app, and you can take any of them back without uninstalling anything.
Side by side
AIM compared to a typical macro tracker
Not a knock on the category — these are simply the trade-offs a database-and-streaks design makes, and the ones AIM makes instead.
| Feature | AIM | Typical macro tracker |
|---|---|---|
| Logging a meal | A photo, or a sentence. Seconds. | Database search, portion guess, repeat per ingredient. |
| Correcting an estimate | Say “it was a double” — it amends the same meal. | Delete the entry, search again, re-enter. |
| Assumptions | Printed under every meal, so you know what to fix. | None shown. One number, no working. |
| Water | Estimated from food and drink, as a nutrient. | A glass counter you tap, ignoring what you ate. |
| Nutrients beyond the macros | 14 as standard, plus any metric you define. | Calories and three macros; micros behind a paywall if at all. |
| Limits | Caps with warnings, daily or weekly, on anything. | Goals only — the bar just keeps filling. |
| Price | Free. | $40–80 a year for the features above. |
The full comparison, including where a conventional tracker wins
Questions
Straight answers
- Is AIM free?
- Yes. AIM is free to download and use, with no subscription and no paywalled nutrients. You can use it without an account; signing in only matters if you want your log on more than one device.
- How accurate is tracking macros from a photo?
- For calories and macronutrients, an image plus a short description lands in the same range as a person estimating portions by hand — and it takes seconds instead of minutes. AIM prints the assumptions it made under every meal so you can correct the one that is wrong, and every number is editable by hand. Micronutrient estimates carry more uncertainty because vitamin and mineral content varies with soil, cultivar and cooking.
- Can AIM track water from food?
- Yes, and it is one of the main reasons AIM exists. Water is a nutrient in the same registry as protein, estimated in milliliters from each meal including the water in the food itself — the broth in a soup, the moisture in chicken, the water rice absorbs while cooking. Food supplies roughly 20–30% of most people's daily water, which glass-counting trackers miss entirely.
- Can I track a nutrient like folic acid or iodine?
- Yes. Fourteen nutrients ship as standard — calories, protein, carbs, fat, fiber, sugar, saturated fat, sodium, cholesterol, potassium, calcium, iron, vitamin C and water. Beyond those you can add a custom metric with its own name, unit and daily or weekly goal, and it is estimated on every meal from then on.
- Can I set a limit instead of a goal?
- Yes. Any nutrient or custom metric can be a cap — a number to stay under rather than reach. Cap added sugar at 25 g a day, sodium, saturated fat, alcohol units a week, or sweetened drinks as a simple count. The meal that takes you over is flagged when you log it, with the amount that did it.
- Can an app really detect heavy metals or carcinogens in food?
- No app can measure contamination from a photograph — that is a laboratory assay, and it varies between batches of the same product. What AIM does is flag when a food falls into a category with a documented history, such as cadmium in cocoa, inorganic arsenic in rice or lead in some protein powders, with one plain sentence explaining why. It never prints a number for a contaminant, because any number would be invented.
Articles
Written up properly
The reasoning behind the features, and the nutrition questions underneath them.
Nutrition
Does the water in your food count toward hydration?
Roughly 20–30% of most people's daily water intake arrives as food rather than drink. Almost no food tracker counts it, which is why hydration numbers in those apps run low.
September 13, 20264 min
How-to
How to track a nutrient your app doesn't have a field for
Folate, iodine, choline, omega-3, magnesium — the nutrients people are told to watch are rarely the nutrients trackers expose. AIM lets you add the one you care about and set a goal on it.
September 11, 20265 min
How-to
Caps, not goals: limiting soda, sugar and seed oils
Most trackers only know how to count up toward a target. Some of what you eat needs a ceiling instead — a number to stay under, with something that says so when you pass it.
September 8, 20264 min
Most food diaries die in week two.
Not from lack of willpower — from hunting through a database for “grilled chicken breast, skinless” three times a day. That is the part AIM removes.
No subscription. No paywalled nutrients. No streaks.