232+ iOS apps & games curated and reviewed
ViHealth is the household name in o2 ring, but it's far from the only option. We track 232+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 3.1★ (1.2K) | No | Yes | Aug 2026 |
| 2 |  | Free | 4.7★ (553) | No | No | Aug 2026 |
| 3 |  | Free | 4.7★ (1.8M) | No | No | Aug 2026 |
| 4 |  | Free | 4.5★ (6.7K) | Yes | No | Aug 2026 |
| 5 |  | Free | 1.0★ (8) | No | No | Jul 2026 |
| 6 |  | Free | 3.0★ (7.7K) | No | No | Aug 2026 |
| 7 |  | Free | — | No | No | May 2026 |
| 8 |  | Free | — | No | Yes | May 2026 |
This app syncs with Viatom devices to display historical health data. It offers real-time monitoring, report sharing, and multi-user management for easy health tracking and goal achievement.
This app helps manage CPAP therapy and track sleep quality. It offers detailed insights into breathing patterns, therapy effectiveness, and sleep trends. Users can maintain a sleep journal and integrate data from various wearable devices for a comprehensive view of their sleep health.
Monitor your home remotely with video doorbells, security cameras, and alarm systems. Receive instant alerts for visitors and motion, view live HD video, and communicate with guests. Smart lights and alarm systems offer further control and safety features.
Easily determine your ring size across multiple countries using metric or imperial units. Features visual guides and supports various international sizing standards. Share your size and explore a jewelry catalog.
Easily determine your accurate ring size for any finger with this intuitive application. It provides precise measurements down to 1/8 sizes and offers convenient conversion to international sizing standards.
Consolidate and securely store your health and fitness data from various sources. Visualize trends, track progress, and gain insights into your well-being. Share information with trusted individuals and manage medications and mental health.
Connect to a unified public WiFi network for free, high-speed internet access. This app serves as an information hub for the City of Verona, offering services and making city life easier for residents and visitors.
Easily identify the correct o-rings for your Eclipse paintball markers. This application provides a quick reference to ensure you have the right parts for maintenance and repairs.
Track your relationship milestones and cherish memories with a shared love diary and AI-powered insights. Customize your experience with unique themes and reminders to strengthen your bond.
Easily determine your ring size from the comfort of your home. This app eliminates the need for physical charts or store visits, providing quick and accurate sizing in minutes.
Easily determine your jewelry ring size with this accurate tool. It offers multiple measurement units, visual guides, and supports numerous international sizing systems. Share your findings effortlessly.
Easily identify the correct O-ring for various hydraulic fitting types. Select your fitting style, and the app provides details, common sizes, and specific O-ring information to help you find the right part.
Engage in a fast-paced arcade game where you destroy rings with plasma balls. Upgrade your power, endurance, and critical chance to break through levels. Unlock unique skins and visual customizations as you progress through increasing challenges.