ReadiOne by Fatigue Science4.6.7 - App Store

ReadiOne is a personal application designed for operators or workers to visualize their realtime and future fatigue levels (ReadiScores) and timing of greatest fatigue risk exposure, ensuring that users are fit for duty during the shift ahead. ReadiOne uses the SAFTE biomathematical model to analyze your sleep in order to quantify and predict the impact it will have on your performance for the day ahead. Sleep can come from wearable data (ReadiWatch, Gamin, or Fitbit) or can be estimated by the ReadiML sleep forecasting engine. Any disruption to your normal sleep, whether from sleep loss, jet lag or night duty, can significantly impact your ability to perform safely and effectively. Specifically, sleep impacts your cognitive performance, reaction time, and lapse likelihood (propensity for a micro sleep).
When you wake up, open the ReadiOne application and you'll receive a personal risk assessment ("ReadiScore") for each of the 18 hours ahead, enabling you to easily visualize if and when you'll be at your best and worst in the day ahead. You'll also be able to track daily improvements to your readiness over time, and you'll receive alerts before your fatigue may reach critical levels. ReadiOne is based on validated algorithms developed with 25 years of sleep research from the US Army Research Lab, and available exclusively from Fatigue Science.
Use of ReadiOne requires an enterprise license to the Readi Fatigue Risk Management Platform. Please see ReadiSupervise by Fatigue Science for supervisor mobile fatigue management tools or visit https://app.fatiguescience.com for web based fatigue management tools.

Version History This patch fixes an issue that could prevent biometric sign-in from working correctly for some users. 4.6.7 Sep 23 Google Health support and Fitbit-to-Google Health migration.
Improved Apple Health and Google Health background syncing.
Improved sleep review and no-sleep-data guidance.
Background ReadiScore syncing with ReadiWatch.
Volunteering data collection support.
App update notifications.
Various bug fixes and performance improvements. 4.6.6 Sep 17 The Sleep Escalation Card keeps you informed when your sleep data is under review. Apple Health integration available for beta users. Bug fixes and performance improvements. 4.6.5 May 13 Bugfixes 4.6.4 Apr 7 Off-wrist management, biometric sign-in, Survey Plans enhancements, support for the latest ReadiWatch firmware, general performance improvements and bug fixes. 4.6.0 Jan 19 Bluetooth syncing speed improvements. Added a Beta label to Background Sync. 4.5.0 12/03/2025 Misc. bug fixes 4.4.0 10/29/2025 Background syncing
Troubleshooting page
In-app communication
UI enhancements: More prominent banners, more prominent SYNC NOW button
Announcements link in settings
Syncing speed optimization
Misc. bug fixes 4.2.1 09/09/2025 Sleep Questionnaires
Sleep history page with weekly period 4.1.0 03/31/2025 bugfixes, iOS 18 support 4.0.11 11/13/2024 Bugfixes 4.0.10 09/16/2024 Bugfixes 4.0.7 08/08/2024 Bugfixes 4.0.6 07/25/2024 Bugfixes 4.0.5 07/23/2024 bigfixes 4.0.4 07/16/2024 - Re-launch of the application on modernized mobile application framework, enabling an array of performance, security, and usability improvements.
- Support for no-wearable workflows, allowing users to visualize their forecasted ReadiScores, whether no-wearable solution is used or wearable user is non-complaint capturing sleep.
- Visualization tools for schedules and fatigue alerts.
- Support for authentication via SSO/IdP
- Improved ReadiWatch synchronization reliability and performance. 4.0.2 07/11/2024 Bug fixes 3.8.5 09/27/2022 Better support for the Fatigue Science ecosystem of applications. 3.8.4 06/08/2022 Bug fixes 3.8.3 05/05/2022 - New feature for registering interventions from supervisors was added
- Performance improvements
- Bug fixes 3.8.0 01/25/2022 - Support for the new Fatigue Science ReadiWatch.
- Performance improvements.
- Bug fixes 3.7.1 12/24/2021 Bug fixes. 3.6.1 07/06/2021 For authorized supervisors and managers, ReadiOne now includes access ReadiSupervise Mobile, for managing crew members' on-duty fatigue directly from your phone. 3.6.0 06/28/2021 Bug fixes. 3.5.2 06/03/2021 Supports Readi Clock Face on Fitbit Versa devices, easier toggle settings for Fatigue Alerts, and password-based login. Brand update: this app is now called ReadiOne 3.5.1 05/04/2021