Loved by 500,000+ people · 4.9
Track your calories
with just a picture
LensNutra is the AI calorie tracker that logs your meals from a photo. Snap, scan a barcode or a label — and get instant calories, macros and a health score. Plus weight, sleep and vitals, all in one app.
- 500,000+
- happy users
- 4.9★
- App Store rating
- 27
- languages
- < 5s
- to log a meal
How it works
Logging a meal takes seconds
No searching a database. No weighing scale. Just point, shoot and eat.
- 1
Snap a photo
Point your camera at any meal — home-cooked or restaurant.
- 2
AI reads it
LensNutra identifies every food and estimates the portions in seconds.
- 3
Track & improve
Calories, macros and a 1–10 health score, logged automatically.
Count calories from a photo
Point your camera at any meal and LensNutra’s AI vision reads it instantly — calories, protein, carbs, fat and fiber, no weighing or searching a database.
- Snap a photo and get macros in seconds
- Recognizes home-cooked and restaurant meals
- Edit portions and ingredients for precision
Every macro, plus a health score
See a full nutrition breakdown for every meal and a 1–10 health score, so you’re not just counting calories — you’re eating better.
- Protein, carbs, fat, fiber, sugar & sodium
- A 1–10 health score for every meal
- Personalized calorie plan (Mifflin-St Jeor)
See your transformation
Log your weight, track the trend, and line up before-and-after photos side by side. Watching the change is what keeps you going.
- Weight trend that ignores daily noise
- Before / after photo compare
- Streaks that reward consistency
The all-in-one advantage
Other apps stop at the plate.
LensNutra tracks the whole body.
Most AI calorie apps only scan food. LensNutra bundles your nutrition with sleep, heart rate, vitals, activity and an AI meal planner — the complete health picture, in one place.
Barcode & Label
Packaged food? Scan the barcode. Homemade meal with a label? Point at the panel. LensNutra reads it and logs it — accurately, in one tap.
Learn moreAI Meal Planner
Tell LensNutra what’s in your fridge — or scan it — and it generates recipes that fit your calorie goal, diet and the time you have to cook.
Learn moreSleep & Vitals
Calories are only half the story. LensNutra also tracks your sleep, heart rate, HRV, resting HR and more — the complete picture, in one app.
Learn moreActivity & Steps
A daily step trail, distance and active calories — and eat-back calories that add movement back into your budget when you earn it.
Learn moreDaily Dashboard
One clean dashboard shows calories, protein, fiber and water against your goal — with a streak that keeps you honest, in light or dark mode.
Learn moreAccurate & honest
AI that you can actually trust
AI calorie counting is typically 85–95% accurate on single foods and 65–80% on mixed meals — great for tracking trends. LensNutra goes further: every value is editable, so when the AI isn’t sure, you have the final say.
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Editable portions & ingredients
Adjust any estimate for a precise log.
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A health score, not just calories
Understand meal quality at a glance.
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Three ways to log
Photo, barcode or nutrition label — whatever’s fastest.
Loved worldwide
Thousands are tracking smarter
“I’ve tried every calorie app. Snapping a photo instead of searching a database is the only thing that made me stick with it. Down 24 lbs and still going.”
Sarah M.
Lost 24 lbs
“The macro breakdown and protein targets are spot on for my bulk. And it tracks my sleep and heart rate too, so I finally deleted three other apps.”
David R.
Bulking
“It takes me five seconds to log dinner now. The before-and-after photos honestly keep me more motivated than the scale ever did.”
Maya K.
Busy mom
“Eat-back calories from my runs and the vitals dashboard are a game changer. It’s the only tracker that understands I move a lot.”
James A.
Marathon training
“The health score made me realize how much sugar I was eating. Small changes, huge results. The design is gorgeous in dark mode too.”
Natalia P.
Down 30 lbs
“No ads, no paywall on the barcode scanner, and the AI is scary good. This is what my old calorie app should have become.”
Thomas B.
Switched from another app
Compare
How LensNutra stacks up
An honest look at LensNutra vs other calorie apps — including where they win.
| LensNutra | AI photo scanners | Database trackers | |
|---|---|---|---|
| AI photo calorie scanning | Limited | ||
| Barcode scanner (no extra paywall) | |||
| AI nutrition-label scanning | |||
| 1–10 health score per meal | |||
| Full macro tracking | |||
| AI meal planner from your ingredients | |||
| Weight + before/after photo compare | |||
| Sleep tracking | |||
| Heart rate & vitals dashboard | |||
| Step & activity tracking | Limited | ||
| Largest food database | Growing | Good | |
| No ads | |||
| Languages | 27 | ~10 | Many |
FAQ
Questions, answered
How does LensNutra count calories from a photo?
LensNutra uses an AI vision model to identify the foods on your plate, estimate their portion sizes, and look up their nutrition — returning calories, protein, carbs, fat and fiber in seconds. You can then fine-tune any portion or ingredient for an exact log.
How accurate are AI calorie counters?
AI calorie counting is typically 85–95% accurate on single foods and 65–80% on mixed meals — good enough to track trends and stay in a deficit. Accuracy improves when you separate ingredients, include a size reference, and adjust portions. LensNutra makes every value editable so your log stays honest.
Is LensNutra free?
LensNutra comes with a free 3-day trial so you can scan meals, track macros and try every feature before paying. After the trial it’s a single subscription — no ads, no separate paywall for barcode scanning like some competitors.
Do I have to weigh my food?
No. LensNutra estimates portions from your photo, so you can log a meal without a food scale. If you want more precision you can adjust the serving size or scan a barcode or nutrition label instead — whichever is fastest for that meal.
What makes LensNutra different from other calorie apps?
Most calorie apps stop at the plate. LensNutra tracks your whole body — food, weight and before/after photos, plus sleep, heart rate and vitals — and includes an AI meal planner that builds recipes from your ingredients. It’s an all-in-one health app, not just a calorie counter.
Does LensNutra track sleep and heart rate too?
Yes. Alongside calories and macros, LensNutra tracks your sleep stages, steps, heart rate, HRV, SpO₂ and resting heart rate, syncing with Apple Health and Health Connect. It’s the only AI calorie tracker that also gives you a full vitals dashboard.
4.9 · Loved by 500,000+ people
Claim your 3-day free trial
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