226+ iOS apps curated and reviewed
OTG CO Leak Detector is the household name in otg co leak detector, but it's far from the only option. We track 226+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 | |
| 2 |  | Free | 5.0★ (1) | No | No | Sep 2026 | |
| 3 |  | Free | 4.0★ (1.9K) | No | No | Aug 2026 | |
| 4 |  | Free | 4.8★ (6.4K) | No | Yes | Sep 2026 | |
| 5 |  | Free | 4.5★ (2.4K) | No | Yes | Sep 2026 | |
| 6 |  | Free | 4.6★ (2.9K) | No | Yes | Sep 2026 | |
| 7 |  | Free | 4.8★ (2.9K) | No | No | Sep 2026 | |
| 8 |  | Free | 4.8★ (25K) | No | No | Sep 2026 |
This app works with a smartphone-powered USB device to detect various gas leaks like methane and formaldehyde. It provides real-time monitoring and alerts to enhance safety at home or work. Pinpoint emission sources effortlessly for peace of mind.
This app guides users through migrating their Flo by Moen devices to a new platform before the current app is deactivated. It provides a step-by-step process to ensure a smooth transition for water damage and leak protection devices.
