ai tracker & wellness system
From Calories to ActionSlimAI — AI Calorie Tracker with a built-in AI Body Fat Calculator
Log a meal by photo, voice, or text. Calories and macros in seconds — plus a body fat estimate from two photos, so you see what the effort actually does.
3-day free trial · Cancel anytime · No card charged during trial
powered by science. backed by results.
50K+
Food Database
10M+
Foods Logged
50k+
Happy Users
80+
Countries
4.8★
App Store Rating
How it works
just 4 easy steps
Log your food or Workout
Quickly log workouts by typing or meals by Scanning in low light, typing or uploading from gallery
Get Instant Calorie & Macro Feedback
Instantly tells you if that meal fits your day's calorie goal, so you understand your food's quality at a glance
Adjust or Burn It Off (Your Choice)
Suggests a workout if you go over your goal — or helps you adjust your portions to see how much you can enjoy while staying on track.
Track Progress & Celebrate Wins
See your streaks, macro balance, junk-to-healthy ratio, and calories over time feel motivated and appreciated
the solution
slimAI Adapts to you
personalized your experience however you log or eat
Personalize
your calories built for your body.
personalize
understand you
your calories built for your body.
Based on your body, activity, and goals. Balanced with the right protein, carbs, and fats.
built for your body
based on real data
adjust as you change
divided in macro nutrients
120g
26%200g
43%60g
43%calories split across meals
25%
35%
35%
10%
Log your food
log your meal in a way that feel easiest to you
eat your way
eat freely or follow strict diet a plan ready to adjust for your way.
How it works
real people . Real Results
Slim AI made my weight-loss routine feel much easier to manage without feeling overwhelmed
__Zahra Rawan
Individual results vary. Weight-loss figures are self-reported by users and are not typical.
New — AI Body Assessment
See What The Scale Can't
Weight tells you what changed. Body fat tells you why. SlimAI Body Assessment turns two smartphone photos into a science-backed estimate of your body fat percentage, fat and lean mass, and where your body stores fat — no smart scale, no calipers, no clinic visit.
Estimated body fat % from two guided photos — voice-coached, auto-captured, about a minute- See fat mass vs lean mass, and where fat is distributed across six body regions
- Built on peer-reviewed, validated formulas — with a confidence rating and honest likely ranges
- Private by design: photos stay in your account, or skip photos entirely with tape-measure mode
Body Assessment provides a science-based estimate for fitness purposes, not a medical diagnosis. Available with SlimAI Pro, for ages 18+.
Explore AI Body AssessmentSlimAI vs Others
Other Apps Just Log Calories
SlimAI Helps you manage it
2150 kcal
daily total
over by 250 kcal
you are over your goal
tells you the problem
But not what to do next
close to your limit
you are doing great
Try smaller fries
save 150 kcal
try walk for 20 mins
Balance this meal
you are back on track
Keep going!
Everything SlimAI does, in one place
One subscription covers all of it — meal logging, macros, body composition, fasting, water, steps, workouts, and progress. Every feature has its own page.
SlimAI vs other trackers
Feature-by-feature comparisons, including the rows where the other app wins.
- SlimAI vs MyFitnessPal
- SlimAI vs Cal AI
- SlimAI vs Noom
- SlimAI vs Lose It!
- SlimAI vs YAZIO
- SlimAI vs Cronometer
- SlimAI vs Lifesum
Switching from another app?
Ranked alternative guides — and when staying put is the better call.
- MyFitnessPal Alternatives
- Cal AI Alternatives
- Noom Alternatives
- Lose It! Alternatives
- YAZIO Alternatives
Tracking for how you eat
Your preferred diet changes your targets and what SlimAI suggests.
Diet support hub →More from SlimAI
Plans, real results, and the guides people read before downloading.
Simple Pricing
choosing your plan
Monthly
Full Access- Save 63%
3-day free trial; renews at $1.49/month unless cancelled. Cancel anytime in your store account.
Yearly
- Full Access
- Save 75%
Twelve months at the monthly price is $17.88. Yearly is $11.99 — $5.89 less.
3-day free trial; renews at $11.99/year unless cancelled. Cancel anytime in your store account.
FAQ
Still Wondering About SlimAI
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 Premium.
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.
SlimAI Premium includes unlimited scans, Speak and Get Your Recipe, Type to Log, priority access to new SlimAI features, and support from a SlimAI representative. It is currently available at discounted pricing: $1.49/month instead of $4/month, or $11.99/year instead of $48/year.
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.
eat what you love
stay on track anyway
Finally enjoy food without feeling out of control. Flexible eating with guidance that adapts to your life
3-day free trial · Cancel anytime · No card charged during trial
