| Feature |  Water Tracker PRO |  waterdrop |  WaterChamp |
|---|---|---|---|
| Realtime hydrationEstimates when you'll be thirsty again | ✕ | ✕ | ✓ |
| Beverages in free version | — | 16 | 62 |
| Caffeine metabolismCurve with future projection | ✕ | ✕ | ✓ |
| Coffee reminderReminds you before the last coffee deadline | ✕ | ✕ | ✓ |
| Caffeine, calories and alcohol tracking | — | — | ✓ |
| Alcohol and BAC estimation | ✕ | ✕ | ✓ |
| Interactive widgetsTrack hydration and log drinks from homescreen | ✓ | — | ✓ |
| Apple Watch app | ✕ | ✓ | coming soon |
| Apple Health sync | ✓ | ✓ | ✓ |
| Health Connect sync | — | — | coming soon |
| Apple App Store | ✓ | ✓ | ✓ |
| Google Play Store | — | ✓ | coming soon |
| Main focus | A simple water reminder with one-touch logging | Tracking and reminders built around waterdrop's bottles and LUCY purifying cap | Full hydration tracker with advanced metabolism features and caffeine tracking |
What both apps miss
Neither app documents a realtime hydration estimate, a caffeine metabolism curve, a last-coffee reminder or per-drink caffeine, calorie and alcohol values. WaterChamp has all of it, and its full 62-drink list is free.
Screenshots
Water Tracker PRO
waterdrop
More comparisons: Water Tracker PRO alternatives · waterdrop alternatives · all comparisons
Water Tracker PRO & Reminder and waterdrop Hydration App are trademarks of their owners. Details and screenshots come from their public App Store listings, checked 13 August 2026.
