# Was It Fatigue? — Incident Investigation Tool

> Incident Investigation Tool (iPhone/iPad app by SleepFit.)

- Source: https://appshunter.io/ios/app/was-it-fatigue/id6737959822 (this page in markdown: same URL + `.md`)
- Developer: [SleepFit](https://appshunter.io/developer/1353225477)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 14.0 · 29 MB
- Languages: English
- Released: 2024-12-18
- Data updated: 2026-05-14
- User reviews in markdown: https://appshunter.io/ios/app/was-it-fatigue/id6737959822/reviews.md

## What is Was It Fatigue??

Was It Fatigue? is a quick and easy to use app that makes the latest FRM science available to incident investigators. Was It Fatigue? quantifies the likelihood that fatigue contributed to an incident by assessing for both the presence of fatigue and the nature of the error that caused the accident, incident or near-miss. Together, these provide a scientifically validated, consistent and repeatable approach to assessing Fatigue Accident Likelihood.

- Fatigue Science made user friendly and practical
We’ve done all the hard work, so you don’t have to. Drawing on world leading fatigue management expertise.

- Experience you can trust
Was It Fatigue? combines 30 years of evidence-based fatigue and sleep research with deep industry experience.

- Safer Operations
Companies are able to identify controls to ensure that potential future occurrences are identified and eliminated.
 
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Was It Fatigue? - Annual | $549.99 | per year |
| Was It Fatigue? - Monthly | $500.00 | per month |



## Version history (last 5 releases)

### 1.9 — 2025-04-03

We're now giving everyone a 1-week free trial of Was It Fatigue? so you can try it

### 1.8 — 2025-03-28

We are happy to introduce a 1-week free trial to the users to our Was IT Fatigue? App.

### 1.7 — 2025-03-03

We are happy to introduce a 1-week free trial to the users to our Was IT Fatigue? App.

### 1.6 — 2025-01-28

Added functionality to delete single/multiple investigations

### 1.5 — 2025-01-22

Date format can now be switched between DD-MM-YYYY and MM/DD/YYYY.
US Region customisation added.

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## More apps by SleepFit

- [Sleepfit](https://appshunter.io/ios/app/sleepfit/id1353225478)
- [SleepWellBaby: Support & Tips](https://appshunter.io/ios/app/sleepwellbaby-support-and-tips/id1479002436)
- [Fatiguefit4Duty](https://appshunter.io/ios/app/fatiguefit4duty/id6443911164)

All apps by SleepFit: https://appshunter.io/developer/1353225477

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-14.*