# Aviation Fatigue Meter vs SenSen Stability

The clearest difference is rating: SenSen Stability at 5.0 against Aviation Fatigue Meter's 3.0. Aviation Fatigue Meter's advantage is update cadence (weekly vs every 2 months) and device support (3 vs 1). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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

Aviation Fatigue Meter ships an update weekly, SenSen Stability every 2 months. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Aviation Fatigue Meter | SenSen Stability |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/aviation-fatigue-meter/id1209482285/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sensen-stability/id1540356840/reviews)** |
| Number of ratings | 2 | 2 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free | Free |
| Size | 107 MB | 106 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pulsar Informatics Inc](https://appshunter.io/developer/1154761432) | [SenMetric](https://appshunter.io/developer/1540356842) |

## 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


### SenSen Stability

[App page](https://appshunter.io/ios/app/sensen-stability/id1540356840)

This app objectively measures and tracks balance and strength using established tests. It utilizes a Bluetooth sensor and an iPad to provide quantifiable results over time, storing data in the cloud for easy access and comparison.

**Highlights:** Balance and strength measurement, Tracks Four Stage Balance Test, Monitors mCTSIB, TUG, and Chair Stand tests, Proprietary balance score calculation, Objective, quantifiable, and repeatable measures, Cloud-based test result storage, Track individual results over time

**In-app purchases:** none


## Frequently asked questions

### Is Aviation Fatigue Meter free?

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

### Is SenSen Stability free?

SenSen Stability is free to download, with no in-app purchases.

### Which has better reviews, Aviation Fatigue Meter or SenSen Stability?

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

### Do Aviation Fatigue Meter or SenSen Stability have ads?

Neither Aviation Fatigue Meter nor SenSen Stability shows ads.

### Which is updated more often, Aviation Fatigue Meter or SenSen Stability?

Aviation Fatigue Meter ships an update weekly, and SenSen Stability every 2 months. Most recently, Aviation Fatigue Meter was updated on October 21, 2026 and SenSen Stability on October 14, 2026.

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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.*