250+ iOS apps curated and reviewed
ReadiOne by Fatigue Science is the household name in readione by fatigue science, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.8★ (13) | No | No | Oct 2026 | |
| 2 |  | Free | 1.6★ (14) | No | No | Oct 2026 | |
| 3 |  | Free | — | No | No | Jul 2026 | |
| 4 |  | Free | — | No | No | Aug 2026 | |
| 5 |  | Free | 4.7★ (109K) | No | No | Nov 2026 | |
| 6 |  | Free | 4.8★ (10) | No | No | Oct 2026 | |
| 7 |  | Free | — | No | Yes | Sep 2026 | |
| 8 |  | Free | — | No | No | Jul 2026 |
This app helps workers visualize their real-time and future fatigue levels using a biomathematical model. It analyzes sleep data to predict performance impacts and identify periods of greatest fatigue risk, ensuring fitness for duty.
Assess your fatigue levels during operations with this tool. It allows for the creation of schedule scenarios, customized surveys, and validated alertness assessments. Data synchronizes automatically for personalized fatigue risk predictions.
Quickly assess your personal fatigue levels for work or personal use. It analyzes your current state, sleep quality, and physical/mental signs to improve safety and performance.
