Snap a photo, say it, or type it — Lento's AI estimates the calories and logs your meal in seconds. It keeps your day-by-day history, so you actually see progress.
ChatGPT or Gemini can guess a meal's calories once. Lento does the same estimate, then saves it to your journal — building the day-by-day record that actually helps you lose weight.
No searching a 10,000-item database. Tell Lento what you ate, your way.
Point your camera at the plate. The AI reads it and estimates the calories and macros.
“Chicken soup and bread.” Voice logging works in 17+ languages — pick yours in Settings.
Type a dish in any language and get an instant estimate — no menus, no fuss.
Personalized targets from your body and activity, with healthy min–max ranges for every macro.
A live eating-window timer with metabolic stages — fed, fat-burning, ketosis, autophagy.
Track your weight trend and keep your logging streak alive. Progress you can actually see.
Three taps from hungry to logged.
Photo, voice, type, or scan a barcode — whatever's fastest in the moment.
The AI returns a single calorie + macro estimate. Tap “Log it” — adjust only if you want to.
Every meal lands in your day-by-day journal, building the history that drives results.
Everything you need to lose weight, nothing you don't.
Most apps make you search a database for every bite. Lento doesn't — you tell it what you ate, however is fastest.
The AI gives you a single calorie + macro estimate and a “Log it” button. That's it. Want more control? Open the breakdown to adjust ingredients, or tell the AI “it's actually meatball soup” and it re-estimates.
Lento calculates a smart daily calorie goal from your body and activity (Mifflin-St Jeor), then sets healthy min–max ranges for every macro. Prefer your own numbers? Edit anything.
A live eating-window timer that starts at your first meal — and shows which metabolic stage your body is in, so fasting actually feels rewarding.
Track your weight trend on a clean chart, scroll your day-by-day history with goal context on every day, and keep your logging streak alive for motivation.
Eat the same things often? Save them once with exact data — your brand of feta, your protein bar — and Lento logs them instantly, no AI guessing. Perfect for people who want real numbers, with zero effort after the first time.
Lento uses advanced AI to give a close estimate from your description or photo — great for tracking trends and staying in a healthy range. For exact figures (e.g. a specific branded product), you can save the precise food once and Lento reuses it, or scan its barcode.
No. That's the point — Lento is for people who won't weigh every gram. Describe the meal naturally (“a bowl of chicken soup with bread”) and you get an estimate. If you want precision, you can adjust quantities, but you never have to.
You can type or speak in virtually any language — the AI understands them all. Voice logging supports 17+ languages you can pick in Settings, and the rest of the app interface is in English.
Yes. We don't sell your data and we don't use advertising trackers. Your meals are stored securely and used only to run the app. Read the full Privacy Policy.
Yes — a live eating-window timer with metabolic stages and protocols like 16:8, 18:6, OMAD and 5:2. It's optional; turn it on in Settings if you fast.
Lento is built for iOS and Android and is launching soon on both. Request early access below to be notified.
Lento is launching with a free tier so you can start tracking right away. Some advanced features may be part of a paid plan later.
Lento is launching on iOS and Android. Be among the first to try it.