156+ iOS apps & games curated and reviewed
The best o2togo apps and games on iPhone average 4.5★ across 156+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.5★ (8) | No | No | May 2026 | |
| 2 |  | Free | 3.0★ (2) | No | Yes | May 2026 | |
| 3 |  | Free | 4.5★ (184) | No | No | Sep 2026 | |
| 4 |  | Free | 3.3★ (12) | No | No | Sep 2026 | |
| 5 |  | Free | 4.9★ (75) | No | No | May 2026 | |
| 6 |  | Free | 4.8★ (64K) | No | No | Sep 2026 | |
| 7 |  | Free | 4.9★ (316K) | No | No | Sep 2026 | |
| 8 |  | Free | 4.8★ (9) | No | No | May 2026 |
Calculates remaining oxygen in a cylinder for ambulatory users. Input device, liter flow, and cylinder size for precise remaining hours and minutes. Provides peace of mind for oxygen users on the go.
This utility app converts oxygen cylinder pressure into remaining time, helping users manage their compressed gas resources. It provides visual indicators and calculates duration based on tank size, current pressure, and flow rate.
Manage your mobile plan, monitor usage, pay bills, and get exclusive benefits. Easily add new services, contact support via chat, and even get new SIM cards for your family.
