250+ iOS apps & games curated and reviewed
The best water challenge apps and games on iPhone average 4.5★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (3.7K) | Yes | No | Oct 2026 | |
| 2 |  | Free | 4.6★ (24K) | Yes | Yes | Nov 2026 | |
| 3 |  | Free | 4.9★ (164K) | No | Yes | Nov 2026 | |
| 4 |  | Free | 4.6★ (23K) | Yes | Yes | Nov 2026 | |
| 5 |  | Free | 4.6★ (26K) | Yes | Yes | Nov 2026 | |
| 6 |  | Free | 4.5★ (20K) | No | Yes | Nov 2026 | |
| 7 |  | Free | 4.8★ (12K) | Yes | Yes | Nov 2026 | |
| 8 |  | Free | — | Yes | No | Oct 2026 |
This app combines physics puzzles with vocabulary challenges. Pour colorful letter-waters between cups to spell words, with modes for word completion, speed spelling, and creative play. Expand your vocabulary and improve spelling through innovative gameplay.
This app helps you maintain optimal hydration by calculating your daily water needs and sending timely reminders. Track your intake with detailed statistics and earn motivational awards. Unlock advanced features with a premium subscription.
This app helps you stay hydrated with smart reminders and fun challenges. Track your water intake from various beverages, collect cute characters, and reach your daily hydration goals. It offers personalized recommendations and syncs with Apple Health.
