| Feature |  Plant Nanny |  Water Reminder |  WaterChamp |
|---|---|---|---|
| Realtime hydrationEstimates when you'll be thirsty again | ✕ | ✕ | ✓ |
| Beverages in free version | Water only | — | 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 plant-growing game fed by logging water, not a typical hydration tracker | A water reminder with drinks and widgets in premium tiers | 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
Plant Nanny
Water Reminder
More comparisons: Plant Nanny alternatives · Water Reminder alternatives · all comparisons
Plant Nanny and Water Reminder - Daily Tracker are trademarks of their owners. Details and screenshots come from their public App Store listings, checked 13 August 2026.
