Tap a feature to see it in the app.
Joules balances the calories you eat against the ones you burn, then models your weight curve toward your goal date. Log your days and the curve updates with real data instead of guesses.
Plan your deficitEvery calculator shows its formula and explains the result.
Free on iOS and Android. Answer a few questions and the app sets your daily calorie and macro targets.
iOS & Android · coming soonLog by photo. The AI reads the plate and fills in calories and macros; you confirm and move on.
About a second per mealThe health score and weight curve show what is working, and your targets recalibrate as your body changes.
Recalibrates as you go293 common foods with USDA-sourced calories, macros, and serving sizes. No signup, no app needed.
Guides on macros, deficits, and eating out — written for people who track, with the numbers shown.
Early testers on the photo scan, the daily health score, and finally sticking with tracking.
I've started and quit five trackers. The photo scan is so fast I actually log every meal now, 3 months straight.
Snapped a messy plate of steak and mac and it itemized every part correctly. Other apps make me search a database for ten minutes.
It gives me more than a calorie number. It tells me my protein's good but sodium's high. I've learned so much in a month.
The habit grids keep people accountable between sessions. Seeing the streak fill in is genuinely motivating.
I type "1.5 cups oatmeal and 3 eggs" and it's done. No fiddling with serving sizes. So fast.
No ads screaming at me, no 40-tab dashboard. Just open, log, done. It stays out of my way.
Take a photo of your plate and Joules identifies the foods, estimates portions, and logs calories with macros. You can adjust anything before saving. It works for home cooking, restaurant meals, and packaged food.
The core tracker is free: calorie logging, macros, water, weight, and streaks. Joules Premium adds AI photo logging, the daily health score, and deeper insights. All the calculators on this site are free with no signup.
It depends on your size, age, and activity. Most adults maintain somewhere between 1,800 and 2,800 calories a day. The TDEE calculator gives you a personal number in about thirty seconds, free.
Yes. Joules reads workouts and steps from Apple Health and Google Fit, counts the burn toward your day, and writes nutrition data back if you allow it.
English first, with Arabic, Russian, Spanish, and Lithuanian rolling out — and more planned. Food databases are localized per market, so local foods and brands show up correctly.
Yes. Joules includes an intermittent fasting timer, habit cards, water and weight trackers, and a streak system, so the whole picture lives in one app.
Your calorie target takes about thirty seconds with the free calculators. The app is in the final stretch for iOS and Android.
