SlimAI
SlimAI

AI calorie tracker · body fat calculator

Snap it.
Calories counted.
SlimAI — AI Calorie Tracker with a built-in AI Body Fat Calculator

Snap it, say it, type it or search it. Calories and macros in seconds, then a body fat estimate from two photos.

3-day free trial · Cancel anytime · No card charged during trial

★ 4.5 App Store · ★ 4.8 Google Play · 10K+ downloads · 50K+ foods · 7 languages

A SlimAI scan result: a photo of a grilled chicken bowl tagged by AI, recognised as Grilled chicken bowl at one serving with two items detected, a View details button and similar dishes

What SlimAI does

Three things, done well.

01 · Logging

Four ways to log. One tap to save.

Scan the plate, say what you ate, type it, or search it. SlimAI names the dish and the serving, then shows calories, macros and how much of it fits your day.

How AI meal logging works →
The SlimAI camera framing a grilled chicken bowl for lunch, with a shutter button and Scan, Speak, Search and Type modes
SlimAI food details for a grilled chicken bowl: 427 kcal with 22 g fats, 24 g protein and 26 g carbs, this meal adds 23% of today’s goal, and a portion picker suggesting one serving

02 · AI body fat calculator

Scan your body. Not just weigh it.

Two guided photos give a body fat estimate with an honest likely range, plus fat mass and lean mass. No smart scale, no calipers, no clinic.

How the body scan works →

A science-based estimate for fitness purposes, not a medical diagnosis. Available with SlimAI Pro, for ages 18+.

The SlimAI guided body scan camera: a front-pose silhouette, a countdown asking you to hold still, and live checks for distance, lighting and position

03 · Meal plans

A meal plan in your own cuisine.

Dishes you actually eat, sized to your calorie target, with a budget for every meal. Don’t fancy one? Swap it and keep the target.

See how meal plans work →
The SlimAI Diet plan screen: an American 1,840 kcal plan, oatmeal with berries logged for breakfast, lunch options of a grilled chicken avocado bowl and avocado toast with a poached egg with Fits scores and Swap buttons, and Greek yogurt with honey as a snack

How it works

Three steps. One habit.

  1. 1

    Answer a few questions

    Your goal, pace and activity set your daily calorie and macro targets.

  2. 2

    Log meals your way

    Photo, voice or text. Calories and macros land in seconds.

  3. 3

    Get one next step

    The AI Coach reads your week and tells you the one thing worth doing.

What users say

Rated 4.8 on Google Play

4.5 on the App Store. Ratings as of September 3, 2026.

★★★★★

Fast Meal Scanning and Ingredient Breakdown

“Such an excellent app. I cannot believe all these features are available. It took around 5 seconds to scan my meal and gave me an ingredient breakdown. I can log meals quickly, check my calorie intake, and understand my day without getting confused by too many steps.”
— Google Play user review
★★★★★

Smooth Performance for Daily Tracking

“What I like most is how smoothly the app works. Meal logging, calorie tracking, and checking progress do not feel slow or complicated. When an app performs well, it becomes much easier to stay consistent.”
— Google Play user review
★★★★★

Calories, Macros, Water, Workouts, and Progress in One Place

“I have tried other calorie tracking apps before, but SlimAI Calorie Tracker feels more complete for my routine. I can track calories, macros, water intake, workouts, and progress in one place instead of switching between different apps.”
— Google Play user review

Review excerpts are lightly edited for length and grammar; the meaning is unchanged. Individual experiences vary, and SlimAI does not guarantee any weight, fitness, or health outcome. Read more reviews or see the full Google Play listing.

Simple pricing

One plan. Everything included.

Start with a free 3-day trial. Cancel anytime in your store account.

Monthly

$7.99/ month

Just $7.99 Today

  • Full Access
  • Billed Monthly
Start a Free 3-Day Trial
Download on the App StoreGet it on Google Play

3-day free trial; renews at $7.99/month unless cancelled. Cancel anytime in your store account.

Save 69% vs monthly

Yearly

$29.99/ year

All in just $29.99/year

  • Full Access
  • Save 69%

Twelve months at the monthly price is $95.88. Yearly is $29.99 — $65.89 less, 69% off.

Start a Free 3-Day Trial
Download on the App StoreGet it on Google Play

3-day free trial; renews at $29.99/year unless cancelled. Cancel anytime in your store account.

  • Simple billing
  • No interruptions
  • Cancel anytime
  • Stay Consistent

FAQ

Questions, answered

What is SlimAI Calorie Tracker?

SlimAI Calorie Tracker is a personalized AI-powered calorie and macro tracking app — and the first AI calorie tracker with a built-in AI body fat calculator. It helps you log meals by photo, voice, or text, track calories and macros, estimate your body fat percentage from two photos with AI Body Assessment, monitor workouts, water, fasting, and steps, and review progress in one connected app.

Yes. AI Body Assessment is SlimAI's built-in body fat calculator. It estimates your body fat percentage from two guided photos using peer-reviewed formulas (US Navy, RFM, CUN-BAE), shows fat mass versus lean mass with regional fat distribution across six body regions, and offers a tape-measure option if you prefer no photos. Results are always an estimate for fitness awareness, not a medical diagnosis, and AI photo analysis is part of SlimAI Pro.

SlimAI supports weight loss by helping you set personalized calorie goals, log meals quickly, understand calorie balance and macros, and stay consistent with daily habits. Individual results vary, and SlimAI does not guarantee weight loss outcomes.

Yes. You can set your own daily calorie target plus gram-level protein, carb, and fat goals — a guided estimate is available, but never forced. When you scan a meal, SlimAI also suggests how much of the plate fits your remaining day (0.25, 0.5, or the full serving) and warns you before you exceed your goal.

Your dashboard shows calories eaten, your goal, and calories burned together, and each meal gets its own recommended range with a live status — Over Limit, Not taken, Need to Eat, or Optional. So you see not just what is left overall, but which meals you still owe and which are optional. The ranges are guidance, not rules.

Yes. AI Coach reads the week you already logged — meals, calories, macros, water, fasting, steps, workouts, weight, and body scans — and answers three things: where your weight is heading, what drove it, and the single next action, with a button that opens the right screen. It is a deterministic AI coach: every sentence comes from fixed rules over your own data, so the same week always produces the same output and no figure is invented — the opposite of a generative chatbot that produces a different, unverifiable answer each time you ask. The coach card, trajectory, attribution, weekly score, and the Monday weekly report are free.

SlimAI Pro includes unlimited scans, Speak and Get Your Recipe, Type to Log, AI Body Assessment photo analysis, cross-feature health patterns, smart food swaps, adaptive calorie goals, Ask About Your Meal, priority access to new SlimAI features, and support from a SlimAI representative. It is $7.99/month or $29.99/year, with a 3-day free trial.

Yes, and the headline numbers other apps advertise are worth reading carefully. A database count is a count of rows, not of foods: the same item takes a separate row for every brand spelling, plural, language, and portion variant, plus a user-submitted copy from everyone who could not find an existing one — which is why searching a multi-million-row database returns dozens of near-identical entries with different calorie figures. Counted properly, the world’s whole foods run to a few thousand; the millions are branded packaged products and duplicates. SlimAI keeps a 50K+ curated database sized so the right entry is usually the first result, and covers anything missing four other ways — AI photo scan, voice, barcode, and printed nutrition label. A food does not need to exist in a list for you to log it.

Because SlimAI is an app, not a coaching programme, and everything sits in one tier instead of being split across two or three. SlimAI Pro is $7.99/month or $29.99/year — a full year for less than a single month of a coaching programme at publicly listed rates — and it covers unlimited AI scans, body fat estimates, fasting, water, workouts, steps, diet plans, health patterns, food swaps, and adaptive calorie goals. Coaching programmes charge more because a human coach and a written curriculum cost money to deliver. Of the four things a coach does — tell you where you are heading, why, what to do next, and hold you to it — SlimAI’s AI Coach does the first three every week from your own data, and does not claim the fourth.

Yes — that is the point of it. Every fact behind your target stays editable, and changing one reruns the same calculation that produced your original plan. Edit your goal, target date, pace, activity level, body type, cuisine, or health details and SlimAI shows you the new daily calorie target live, before you save. Saving then updates your macro grams, your per-meal calorie ranges, your BMI, your diet plan — the cached meals are cleared and refetched against the new budget, so a lower target genuinely produces a lighter list — plus your stats, your coach, and your home-screen widgets. Logging a weigh-in that is your latest reading runs the same recalculation, and the confirmation names your new goal. If you set your own macro split, it is kept as a ratio and re-applied to the new total instead of being reset.

Every coaching surface in SlimAI ends in an action rather than a number. The coach card reads your logged week and gives you one insight plus a button that opens the right screen with the context already applied — your diet plan filtered to the meal that overshot, the scanner with the meal type set, the water tracker, or the swap that fixes your protein. The Progress tab shows all three achievements, including the ones you have not earned, with how far you have come and exactly what is left. The Monday report closes with one thing to try next week, and if progress stalls, plateau detection proposes one specific change for you to approve.

SlimAI checks two things before calling it a plateau: whether your smoothed weight trend has been flat for at least 14 days, and whether your logging over that period was solid. If both hold, it proposes one small change — a single step down in calories, or 2,000 more steps a day — and applies neither until you confirm. You can undo it. If your logging was patchy, SlimAI treats it as a data problem and does not touch your calorie target at all.

Yes. SlimAI includes a wide food database covering different cuisines, including desi, Asian, American, Mediterranean, Thai, and more, with regional food personalization so meal ideas feel closer to how you actually eat.

Skipping a day does not ruin your progress. SlimAI supports back-date food and exercise logging, so you can fill in missed entries and get back to your routine without feeling like you have to start over.

Yes. SlimAI respects user privacy and handles data according to its Privacy Policy, which explains how information is collected, used, and protected. You can also review privacy details on the App Store or Google Play listing.

SlimAI supports 7 languages: English, French, German, Italian, Spanish, Dutch, and Arabic. Meal logging and tracking work in all of them.

SlimAI needs an internet connection to work properly. This helps the app access food data, AI features, recipes, and tracking updates accurately.

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Eat what you love.Stay on track anyway.

Log any meal, any way. Get instant calories and macros. Build the habit that sticks.

Free 3-day trial, then $7.99/month or $29.99/year. Cancel anytime.