# Stack Testers Revision Friend vs Slow speed. Management Engine

The clearest difference is price: Stack Testers Revision Friend at Free against Slow speed. Management Engine's $4.99. Slow speed. Management Engine's advantage is iOS requirement (10.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Stack Testers Revision Friend is free to download; Slow speed. Management Engine costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Stack Testers Revision Friend | Slow speed. Management Engine |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | Free | — |
| Size | 19 MB | 38 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lewis Holmes](https://appshunter.io/developer/1454834389) | [Maxim Lukyanenko](https://appshunter.io/developer/1496252741) |

## What reviewers say

### Stack Testers Revision Friend

[App page](https://appshunter.io/ios/app/stack-testers-revision-friend/id1531634040)

This revision aid offers multiple-choice questions for UK Stack Testers preparing for MCERTS examinations. It stores test results, provides progress charts, and includes links to essential documents and external resources.

**Highlights:** MCERTS examination practice questions, Multiple choice tests, Stored test results, Progress tracking charts, Useful documents and links, Image gallery

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

**In-app purchases:** none


### Slow speed. Management Engine

[App page](https://appshunter.io/ios/app/slow-speed-management-engine/id6468923117)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stack Testers Revision Friend free?

Stack Testers Revision Friend is free to download, with no in-app purchases.

### Is Slow speed. Management Engine free?

Slow speed. Management Engine costs $4.99, with no in-app purchases.

### Do Stack Testers Revision Friend or Slow speed. Management Engine have ads?

Neither Stack Testers Revision Friend nor Slow speed. Management Engine 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.*