CalZen AI Food Calorie Counter
Meal Tracker and Macro Scanner
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
Achieve your dream body effortlessly! Snap your meals, track calories, and hit your goals—quickly and easily.
1. Snap a photo of your meal.
2. Get instant calorie and macro details*
3. Reach your fitness goals faster.
No manual input, no complex steps — just fast, accurate results.
Perfect for anyone wanting to lose weight, build muscle, or maintain a balanced lifestyle.
Questions? Reach us at calzen@42apps.io.
Disclaimer: We are not a medical application and do not provide medical advice. Please consult a healthcare professional before starting any diet or nutrition plan.
AI-powered analysis requires a subscription.
Terms of Use https://calzen.ai/terms
Privacy Policy https://calzen.ai/privacy
more We reworked the first steps inside the app, so it's easier to find your way when you start. We also fixed a few small bugs. Right now we're working on making food recognition more accurate, and those improvements are coming in the next updates. Found a bug or have an idea? Write to us at hello@calzen.ai and we read every message.
2.10.7 3 days ago
We made the app more stable and fixed a few small bugs. If something isn't working or you have an idea, write to us at hello@calzen.ai. We read every message.
2.10.6 9 Jul
Now you can change how fast you want to reach your weight goal, right from your profile. CalZen updates your daily calories and macros the moment you adjust it. And if your pace sets your calories too low, we'll let you know and help you pick a safer target. Questions or ideas? Email us at calzen@42apps.io and we reply to every message.
2.10.5 8 Jul
We improved voice logging, so it's faster and catches your words more accurately, even if you clear the field while recording. We also fixed a few stability bugs. Questions or ideas? Email us at calzen@42apps.io and we reply to every message.
2.10.4 2 Jul
This update makes everyday tracking smoother and more dependable. Logging meals by text now works faster and more accurately, so adding what you eat takes less effort throughout the day. We also resolved a stability issue that affected some users on certain devices. Thank you for being part of CalZen, and we truly value every review and suggestion you share with us.
2.10.3 25 Jun
Small habits win. That's the whole idea behind this update.
Say hello to the CalZen Live Activity. Flip it on in your Profile and your remaining calories and macros (protein, carbs, fat) show up right on your Lock Screen as live rings, updating the second you log a meal. No need to open the app just to see where you stand. And in the Dynamic Island, your calories left for the day stay a glance away.
Here's a little trick that actually works: check your numbers before you order, not after. One look at how much room you've got and the call between the fries and the salad pretty much makes itself. No math, no guilt, just an easier choice.
We also cleaned things up under the hood, so CalZen stays fast and steady.
And honestly, we read everything. If something made your day, got on your nerves, or there's a feature you wish existed, tell us. Drop us a line at calzen@42apps.io or leave a review. Your notes genuinely shape what we build next, and we can't wait to hear from you.
2.10.2 23 Jun
Your calories are now always in sight — right from the Lock Screen.
• NEW: Live Activity — track your remaining calories and macros (protein, carbs, fat) at a glance on the Lock Screen and in the Dynamic Island, without even opening the app.
• Updates live as you log your meals, so you're always in control.
• Turn it on or off anytime in your Profile.
Plus bug fixes and improvements to keep CalZen fast and reliable.
2.10.1 11 Jun
You hop on the scales, head for the coffee — by the time you pour, the number's gone. Sound familiar? The + button on the home screen now logs your weight: tap it right off the scales, number's in before your coffee's done. We've also rebuilt the camera screen from scratch — open it and your food's right there in frame, no extra UI in the way, shutter's instant. CalZen tip: weigh in at the same time every day, first thing, before you eat — one day's noise, a week's the signal. Chase the trend, not the number. More good stuff to come. Tell us how it lands at hello@calzen.ai, we read every message ourselves.
2.10.0 6 Jun
A PDF nutrition report for 7 days, 2 weeks or 30. One tap on the share icon at the top of the main screen, and you get a clean document with macros, weight and the food diary day by day, with photos. People used to screenshot the main screen and stitch the days together — no more. Send it to a trainer, a nutritionist, a doctor or anyone who asks how you actually eat: clear and self-explanatory. Try it and tell me how it goes at hello@calzen.ai, I read every message personally.
2.9.1 1 Jun
A PDF nutrition report for 7 days, 2 weeks or 30. One tap on the share icon at the top of the main screen, and you get a clean document with macros, weight and the food diary day by day, with photos. People used to screenshot the main screen and stitch the days together — no more. Send it to a trainer, a nutritionist, a doctor or anyone who asks how you actually eat: clear and self-explanatory. Try it and tell me how it goes at hello@calzen.ai, I read every message personally.
2.9.0 26 May
Your diet doesn't break because of Friday pizza. It breaks because of that spoon of peanut butter on the fly, the handful of almonds round at a mate's, the latte on the way to work — the 300–500 calories that "don't count." Voice dictation was built for exactly that moment: hands busy, just say it out loud. Fibre is the other invisible piece of the puzzle: 25–30g a day, and satiety holds, digestion works, training goes easier. Which feature do you use most, and what would you tweak to fit your goals in CalZen? Email hello@calzen.ai — I read every message personally.
2.8.2 25 May
Sneaky glitches, jumpy taps, the odd typo — we hunted them down and squashed the lot. Quiet release on the surface, smoother under your finger. While you're here: we shipped fibre tracking in 2.7 and voice dictation in 2.8, and we genuinely want to know how they're treating you. What works, what bugs you, what's missing? hello@calzen.ai — every email lands on a real person at CalZen, and the features we hear about are the ones we keep building on.
2.8.1 23 May
Mouth full, fingers greasy, hands on the wheel — finally an excuse to talk to your phone. Voice dictation has landed: press and hold the big + on the home screen and just say what you've had. The least awkward way to confess that second slice of pizza. Heads up: voice mode is iOS 26 only. CalZen tip: the snacks you didn't plan to eat leak more calories than the dinners you actually cooked. Log those first. Ideas? hello@calzen.ai
2.8.0 19 May
Fibre now joins every food scan — track it right alongside protein, fat and carbs. We also gave the meal view screen a fresh coat of paint. Two things we want to apologise for and have already fixed: the loading screen got slow on the last build, and the home screen list sometimes got sticky to scroll. Both sorted — sorry about that. CalZen life hack: a handful of berries on your morning porridge ≈ 5 g of fibre, basically free — most of us are eating half of what we should. Ideas? hello@calzen.ai
2.7.8 17 May
Polished a few details under the hood — a quiet bridge release while the bigger update is brewing. Summer hack while you wait: pop a handful of grapes in the freezer. They turn into tiny natural sweets — sweet, crunchy, basically no calories. Stay close, something solid is coming next. Ideas? hello@calzen.ai
2.7.7 6 May
Quiet polish under the hood, calm and steady. Summer life hack while you wait: half your snack cravings in the heat are just thirst in disguise. Have a glass of water first, then decide. Bigger stuff is on the way next release. Stay close. Ideas? hello@calzen.ai
2.7.6 5 May
We made food scanning more accurate. CalZen life hack: the best summer prep isn't a crash diet in June — it's knowing what you eat in April. Your future beach self will thank you. Ideas? hello@calzen.ai
2.7.5 9 Apr
• Added support for new languages
• Fixed minor inaccuracies
We've received a large number of requests to improve food recognition quality — especially when photographing packaged food with nutrition labels showing weight, calories, protein, fat, and carbs. We're working hard to significantly improve our algorithms as soon as possible. Stay tuned!
2.7.4 7 Mar
Tuned things up under the hood. CalZen life hack: log your food before you eat, not after. You'll pick better portions — and won't have to google "calories in that thing I had for lunch" three hours later. Ideas? hello@calzen.ai
2.7.3 27 Feb
Fixed a few bugs and made the app a bit faster. Questions or ideas? Write to us — hello@calzena.ai
2.7.2 14 Feb
Favorites upgrade: now with search. Find your saved meals instantly. You asked for it, we built it. Keep the ideas coming — calzen@42apps.io.
2.7.1 27 Jan
– You can now add handy widgets to your Home Screen for quick access.
– We added support for the Action Button so you can open the CalZen camera instantly.
– You can also customize notification times to fit your daily routine.
Small changes that make CalZen easier to use every day.
2.7.0 15 Jan
We gave "My Progress" screen a fresh look. Same data, clearer story.
Weight, calories, and macros are now easier to read and easier to connect. Less noise, more insight.
We also added daily charts for water and steps, so your progress feels whole, not scattered. Tap My Progress on the main screen and see how your habits add up.
2.6.2 12 Jan
Happy New Year! We gave CalZen a fresh look. The main screen is updated, the main widget got a makeover, and we added step tracking and a water tracker. More movement, more water, less thinking. Open CalZen, use it daily, and get even more out of it this year.
We also fixed a few small issues you shared with us at calzen@42apps.io. Thanks for helping us improve CalZen.
New Year lifehack
January rule: water first, steps next, food logged when you remember. That already counts as a good start.
2.6.1 6 Jan
Happy New Year! We gave CalZen a fresh look. The main screen is updated, the main widget got a makeover, and we added step tracking and a water tracker. More movement, more water, less thinking. Open CalZen, use it daily, and get even more out of it this year.
New Year lifehack
January rule: water first, steps next, food logged when you remember. That already counts as a good start.
2.6.0 1 Jan
We reworked the first steps inside the app, so it's easier to find your way when you start. We also fixed a few small bugs. Right now we're working on making food recognition more accurate, and those improvements are coming in the next updates. Found a bug or have an idea? Write to us at hello@calzen.ai and we read every message.
more Version 2.10.7 3 days ago
Data Used to Track You The following data may be used to track you across apps and websites owned by other companies:
Data Not Linked to You The following data may be collected but it is not linked to your identity:
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