Water tracking, photo calorie counting and live GPS exercise tracking in one app for iOS and Android — and the three feed each other. The run you record on the map raises your water goal; the meal you photograph adds the water your body needs to digest it.
What is Suu? Suu is an AI-powered health app for iOS and Android that combines three things most apps keep separate: hydration across 91 beverages, calorie and macro tracking from a meal photo or your voice, and live GPS workout recording with your route drawn on a map. Around 50 sport activities are supported, and every workout updates your water goal automatically. It syncs two-way with Apple HealthKit and Google Health Connect, supports Widgets, Dynamic Island, Live Activities and Siri, and ships in 7 languages (English, Turkish, Arabic, German, Italian, Russian, Hindi).
The things that make Suu different from calorie counters, workout trackers and water apps alike
Photograph your plate and Suu AI returns calories, protein, carbohydrate and fat in seconds — no searching a database, no weighing. The photo is not stored permanently. Three AI analyses a day are free forever; unlimited analysis and photo recognition come with Premium. See how photo calorie counting works.
Say "a bowl of lentil soup and a glass of ayran" and Suu splits the solids from the liquids automatically — the soup becomes calories and macros, the ayran also counts toward your hydration. Speech is converted to text by your device's own OS (Apple Speech / Android SpeechRecognizer); the audio never reaches Suu's servers.
Calories, protein, carbs and fat tracked per meal and per day, with automatic macro targets and a 1–100 nutrition score that rates the balance of what you actually ate. Written back to Apple Health / Health Connect. Read the macro calculation guide.
Start, pause and finish a workout inside Suu. Distance, duration and pace update live while you move, and your route is drawn on the map when you finish. Running and walking report distance, pace, average speed and calories burned; cycling adds speed and elevation. See how it stacks up in Suu vs Strava.
Running, walking, cycling, gym, swimming, hiking, cardio and more — around 50 activities in total. Sessions recorded on a watch or in another app are read from Apple Health and Google Health Connect, so they count too. Every workout raises your daily water goal automatically.
Suu's in-app assistant now chats with real AI and acts for you. Say "log 2 glasses of water" and it records it instantly; ask "how much have I had today?" and it summarizes your stats. It navigates you to the right screen (stats, goal, beverages), sets reminders, gives personal coaching from your profile, and nudges you step by step toward your daily goal. Just talk in natural language — no rival water app has a conversational, action-taking assistant like this.
While you use the app, the app learns you. Suu builds a behavioral profile (tempo, pace, drink variety, consistency, activity) and adapts 24 decision areas — notification rhythm, coaching depth, even your pet's mood. Personalization starts on day 3; new users always get a safe default.
A single daily hydration score combining completion (50%), regularity (20%), timing (20%) and over-intake (10%), with clear labels: Excellent, Good, Improving or Weak. Track how your hydration quality — not just quantity — evolves.
A dynamic, time-sliced plan that divides your day into 3–5 windows around your sleep and drinking rhythm and assigns a target to each. Drink organically and Suu recalculates the remaining slices for you.
Weekly water-drinking competition with up to 4 friends. Leaderboard, goal-completion percentage and streak rivalry. iOS and Android users meet in the same league. WaterMinder, Hydro Coach and Plant Nanny don't have this.
91 drinks across 12 categories — water, tea, coffee, juice, soda, dairy, energy, sports, alcohol and more — plus Starbucks, Greenwich and Nevada brand menus. Each drink has a real hydration factor (water 1.0, coffee 0.8, alcohol −0.5), so you see your true hydration, not just liters.
Pace-aware Dynamic Island for iPhone 14 Pro and later: not a raw counter, but a signal of whether you're ahead, on time or behind your personal rhythm — with a ring color and "≈X ml left · ~N glasses" guidance.
Instead of generic "Drink water!" pings, Suu learns your pace over 14 days and sends contextual messages like "You're at 32% — 2,400 ml to go." When you hit your goal, the rest of the day's reminders are cancelled.
Full two-way sync with Apple HealthKit on iOS and Health Connect / Google Fit on Android — water, steps, active energy and workouts. Auto-syncs every 15 minutes with permission-based control.
Apple Watch workouts reach Suu through Apple Health and raise your water goal automatically. Suu also has its own Apple Watch app for adding water, logging meals by voice and recording GPS workouts. Home Screen widgets in 3 sizes, Siri Shortcuts and in-app voice commands ("coffee" → 200 ml) in all 7 languages.
Live GPS exercise sessions (walk, run, cycle) with your route drawn on the map and an iOS Live Activity, plus around 50 sport activities to log. After a workout, Suu suggests 300–500 ml of calorie-based extra water to rehydrate.
A cat or dog that grows with your streak, fed and washed with a water-based "drop" economy, plus mini-games and accessories. It never sends notifications — it motivates without nagging.
Daily, weekly, monthly and yearly charts, your Suu Index, an hourly "Water Journey" story video, plus PDF report and CSV export (Premium). WaterMinder and Hydro Coach don't offer PDF export.
Your goal is calculated from weight, activity, age, sex and BMI, minus the share you get from food, with pregnancy / breastfeeding additions — clamped between 1,500 and 4,000 ml. Not "8 glasses for everyone."
English, Arabic (RTL), Turkish and Russian — with native drink names and smart search. Built for VoiceOver and TalkBack, with a Guest Mode that unlocks every feature without signing up.
For head-to-head comparisons against calorie counters and workout trackers, see Suu vs MyFitnessPal, Suu vs Cal AI and Suu vs Strava.
How Suu compares feature by feature
| Feature | Suu ✓ | WaterMinder | Hydro Coach | Plant Nanny |
|---|---|---|---|---|
| Free core features | ✓ | Limited | ✓ | ✓ |
| Adaptive AI that learns you | ✓ | ✗ | ✗ | ✗ |
| Hydration score (0–100) | ✓ Suu Index | ✗ | ✗ | ✗ |
| League / social competition | ✓ (4 people) | ✗ | ✗ | ✗ |
| iOS + Android cross-league | ✓ | ✗ | ✗ | ✗ |
| Number of drinks | 91 | ~20 | ~30 | ~15 |
| Compound hydration model | ✓ | Limited | Limited | ✗ |
| Apple Health (HealthKit) | ✓ | ✓ | ✗ | ✓ |
| Health Connect / Google Fit | ✓ | ✗ | ✓ | ✗ |
| iOS Dynamic Island (pace-aware) | ✓ | ✗ | ✗ | ✗ |
| Apple Watch app | ✓ | ✓ | ✗ | ✗ |
| Siri & voice commands | ✓ | Limited | ✗ | ✗ |
| Virtual pet companion | ✓ | ✗ | ✗ | ✓ |
| Arabic (RTL) support | ✓ | ✗ | ✗ | ✗ |
| Languages | 7 (EN/TR/AR/DE/IT/RU/HI) | EN + | EN + | EN + |
| PDF / CSV export | ✓ | ✗ | ✗ | ✗ |
Comparison based on publicly available information. Check each app's official page for the latest details.
Suu stands out with its Adaptive Hydration Brain, the Suu Index hydration score, social leagues, 91 drinks and iOS Dynamic Island support. It works on iOS and Android in 7 languages and can be downloaded free at suuapp.com.
A common starting point is weight (kg) × 35 ml, adjusted for activity, age, sex and BMI. Suu calculates a personal goal between 1,500 and 4,000 ml and recalculates it when your profile changes. General guidance, not medical advice.
Yes. Suu uses a compound hydration model where each drink has a real hydration factor (water 1.0, herbal tea 0.9, coffee 0.8, energy 0.5, alcohol −0.5). Caffeine is not penalized; only sugar and alcohol add an extra-water need.
Yes. Photograph your meal and Suu AI returns calories, protein, carbohydrate and fat in seconds. The photo is not stored permanently. Three AI analyses per day are free forever; unlimited analysis and photo recognition are part of Premium. You can also log by speaking — Suu separates the solids from the liquids automatically, so a glass of ayran counts toward both your calories and your hydration.
Yes. You start, pause and finish a workout inside Suu and see distance, duration and pace update live; at the end your route is drawn on the map. Running and walking report distance, pace, average speed and calories burned, and cycling adds speed and elevation. Around 50 sport activities are supported, and workouts recorded on a watch or in another app are read from Apple Health and Google Health Connect. Suu does not have segments, leaderboards or a social feed — for those, Strava is the right answer.
That is what Suu is built for, and the three are connected rather than merely bundled: the run you record raises your water goal, and the meal you photograph adds the water your body needs to digest it. Suu's food database is smaller than MyFitnessPal's and it has no barcode scanning, so if barcode-first logging is your priority MyFitnessPal is still the better pick.
Free on Android and iOS. Set your personalized water goal in 2 minutes.