# FA 4xx App vs Evolve

The clearest difference is price: FA 4xx App at Free against Evolve's $2.99. FA 4xx App also leads on iOS requirement (9.0 vs 15.6). Evolve's advantage is update cadence (every 9 days vs every 34 months). On ads, in-app purchases and device support there is nothing between them.

FA 4xx App is free to download; Evolve costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FA 4xx App ships an update every 34 months, Evolve every 9 days. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | FA 4xx App | Evolve |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/evolve-parameter-tracker/id1504206913/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 9 days** |
| Monetization | — | Paid |
| Size | 93 MB | 3 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Woehler Technik GmbH](https://appshunter.io/developer/959456679) | [Aleh Rabchuk](https://appshunter.io/developer/1116159085) |

## What reviewers say

### FA 4xx App

[App page](https://appshunter.io/ios/app/fa-4xx-app/id1466210879)

**Features:** macOS Compatibility

**In-app purchases:** none


### Evolve

[App page](https://appshunter.io/ios/app/evolve-parameter-tracker/id1504206913)

Track a wide range of personal parameters like weight, sleep, and training progress. Visualize your data in tables and graphs to analyze your development. Aim to become stronger, faster, and smarter.

**Highlights:** Track weight, blood pressure, sleep duration, Log training sessions and lessons, Record exercise repetitions, View data in tabular format, Analyze data with graphical representations, Personalized parameter tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is FA 4xx App free?

FA 4xx App is free to download, with no in-app purchases.

### Is Evolve free?

Evolve costs $2.99, with no in-app purchases.

### Do FA 4xx App or Evolve have ads?

Neither FA 4xx App nor Evolve shows ads.

### Which is updated more often, FA 4xx App or Evolve?

FA 4xx App ships an update every 34 months, and Evolve every 9 days. Most recently, FA 4xx App was updated on October 14, 2026 and Evolve on October 15, 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.*