# Aviation Fatigue Meter vs WakeZen

The clearest difference is rating: WakeZen at 5.0 against Aviation Fatigue Meter's 3.0. Aviation Fatigue Meter's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On price, ratings volume and ads there is nothing between them.

Both are free to download. WakeZen sells 2 in-app purchases, starting at $4.99 per month. Aviation Fatigue Meter asks for nothing beyond the download.

WakeZen holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

## The numbers

| Metric | Aviation Fatigue Meter | WakeZen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/aviation-fatigue-meter/id1209482285/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wakezen/id6760515633/reviews)** |
| Number of ratings | **2** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | **Free** | Freemium |
| Size | 107 MB | 9 MB |
| Requires iOS | **10.0** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pulsar Informatics Inc](https://appshunter.io/developer/1154761432) | [ALILOU DIgital LTD](https://appshunter.io/developer/1877764619) |

## What reviewers say

### Aviation Fatigue Meter

[App page](https://appshunter.io/ios/app/aviation-fatigue-meter/id1209482285)

This app allows aviation professionals to assess their fatigue levels during flight operations using validated alertness tests and customized surveys. Data is automatically synchronized securely for fatigue risk management.

**Highlights:** Psychomotor Vigilance Test (PVT), Customized surveys, Fatigue assessment tests, Automatic data synchronization, Secure data transfer, Robotically calibrated assessments

**Features:** macOS Compatibility

**In-app purchases:** none


### WakeZen

[App page](https://appshunter.io/ios/app/wakezen/id6760515633)

This smart alarm app transforms your wake-up experience by requiring you to complete a mission before silencing. Choose from math problems, shaking your phone, or taking a photo to ensure you get out of bed with purpose and build a stronger morning routine.

**Highlights:** Mission-based alarms, Math, Shake, and Photo challenges, Progress tracking and streaks, Fast and simple alarm setup, Clean, focused design, Build stronger morning habits

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WakeZen Pro Monthly | $4.99 | per month |
| WakeZen Pro Yearly | $24.99 | per year |


## Frequently asked questions

### Is Aviation Fatigue Meter free?

Aviation Fatigue Meter is free to download, with no in-app purchases.

### Is WakeZen free?

WakeZen is free to download, with in-app purchases available.

### Which has better reviews, Aviation Fatigue Meter or WakeZen?

WakeZen is rated higher. Aviation Fatigue Meter averages 3.0 out of 5 from 2 ratings, while WakeZen averages 5.0 from 1 ratings.

### Do Aviation Fatigue Meter or WakeZen have ads?

Neither Aviation Fatigue Meter nor WakeZen shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*