Short answer: Yes. Suu combines water, calories and exercise in one app. It tracks hydration scientifically with a hydration factor for 91 beverages, logs calories and macros, and reads exercise from Apple Health / Google Health Connect to update your goals dynamically. You can log by speaking or by taking a food photo. It's free on iOS and Android.
Why aren't separate apps enough?
Most people use one app for water and another for calories. The problem: these three things — water, calories and exercise — affect each other. Exercise increases both the calories you burn and the water you lose. And drinking water can help lower total calorie intake and support weight management.1 The core mechanism of weight change is energy balance (a calorie deficit).2 Keeping these on separate screens means seeing only half the picture.
The gap in the market
Apps usually fall into two camps:
- Calorie apps (MyFitnessPal, Yazio, Lifesum, Cronometer) — strong on calories/macros, but water is a simple counter with no hydration science.
- Water apps (WaterMinder, Hydro Coach, Plant Nanny) — good at hydration, but no calorie/macro tracking.
Suu was built to close exactly this gap by combining both — plus exercise integration on top.
How Suu does it
- Calories & macros: Log a meal by voice ("a bowl of lentil soup") or by photo; the AI derives calories, protein, carbs and fat. Results are written to Apple HealthKit / Health Connect (Dietary).
- Water & hydration: 91 beverages, each with its own hydration factor (filter coffee 0.8: 200 ml = 160 ml of water); your hydration score (0–100) updates live.
- Exercise: Walking, running, swimming and cycling are read automatically from Apple Health / Google Health Connect; your water and nutrition goals adjust dynamically.
- One view: Calories, macros, water and exercise on the same daily balance screen, with a 1–100 nutrition score for the big picture.
In short
If you're tired of tracking water, calories and exercise separately, you're looking for one app that brings them all together. Suu does exactly that — by voice or photo, fully localized and free.
Bring It All Into One App
- ✓ Water + calories + exercise on one screen
- ✓ Voice and photo logging
- ✓ Free · iOS & Android
Frequently Asked Questions
Is there an app that tracks both water and calories?
Yes, Suu combines both in one app: 91-beverage hydration + calories/macros. Most calorie apps treat water as a simple counter; most water apps don't track calories.
Can I track water, calories and exercise in one app?
Yes. Suu brings all three together: it records walks, runs and rides live with GPS on your phone or Apple Watch, also reads workouts from Apple Health / Health Connect, and updates your goals dynamically.
Why track water and calories together?
Because water intake affects weight management1 and exercise changes both calorie and water needs. One screen shows your daily balance as a whole.
Is Suu free?
Yes. Core water + calorie + macro tracking, 3 AI analyses/day and Health sync are free. Premium has a 3-day free trial.
Does Suu work on Apple Watch, with Siri and with widgets?
Yes. With Suu's Apple Watch app you add water from your wrist, log a meal by voice (the calorie analysis finishes in Suu on your iPhone) and record walks, runs, hikes and rides with the watch's GPS and live heart rate. Water and workouts are saved on the watch even when your iPhone isn't nearby and sync later. On iPhone there are Home Screen widgets in three sizes (small, medium, large) and Lock Screen widgets — on iOS 17 and later you add water from the Home Screen widget with one tap — plus Live Activities and Dynamic Island. Adding water by voice with Siri (up to 3 custom phrases) is part of Premium. Android has a home-screen widget. There are no watch-face complications.
References
- Dennis EA, et al. (2010). Water consumption increases weight loss during a hypocaloric diet intervention in middle-aged and older adults. Obesity, 18(2), 300–307. PubMed: 19661958
- Hall KD, et al. (2011). Quantification of the effect of energy imbalance on bodyweight. The Lancet, 378(9793), 826–837. PubMed: 21872751
- Suu — Features. suuapp.com/ozellikler-en.html