# Trainer Trace vs Fatigue Meter App

The clearest difference is update cadence: Fatigue Meter App at fortnightly against Trainer Trace's every 3 months. Trainer Trace's advantage is iOS requirement (11.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Trainer Trace ships an update every 3 months, Fatigue Meter App fortnightly. The most recent releases landed on May 16, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Trainer Trace | Fatigue Meter App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.6 (14 ratings)](https://appshunter.io/ios/app/fatigue-meter-app/id6450310712/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 37 MB | 34 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [COMERCIAL ADUANERA INTERNACIONAL RAUL COKA BARRIGA C LTD](https://appshunter.io/developer/1561621572) | [Pulsar Informatics Inc](https://appshunter.io/developer/1154761432) |

## What reviewers say

### Trainer Trace

[App page](https://appshunter.io/ios/app/trainer-trace-coach/id6445902442)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fatigue Meter App

[App page](https://appshunter.io/ios/app/fatigue-meter-app/id6450310712)

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.

**Highlights:** Wearable data synchronization, Personalized fatigue risk predictions, Psychomotor Vigilance Test (PVT), Custom surveys and assessments, Automatic data synchronization

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

**In-app purchases:** none


## Frequently asked questions

### Is Trainer Trace free?

Trainer Trace is free to download, with no in-app purchases.

### Is Fatigue Meter App free?

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

### Do Trainer Trace or Fatigue Meter App have ads?

Neither Trainer Trace nor Fatigue Meter App shows ads.

### Which is updated more often, Trainer Trace or Fatigue Meter App?

Trainer Trace ships an update every 3 months, and Fatigue Meter App fortnightly. Most recently, Trainer Trace was updated on May 16, 2026 and Fatigue Meter App on October 30, 2026.

---

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