# Chmod Toolkit vs DevToolkit Mobile

The clearest difference is in-app purchases: DevToolkit Mobile at none against Chmod Toolkit's 1. Chmod Toolkit's advantage is ads (none vs shown) and update cadence (every 5 days vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Chmod Toolkit sells 1 one-off in-app purchase. DevToolkit Mobile asks for nothing beyond the download.

Chmod Toolkit ships an update every 5 days, DevToolkit Mobile monthly. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Chmod Toolkit | DevToolkit Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/chmod-toolkit/id6756904066/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | Free | — |
| Size | 31 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Robert Frederique](https://appshunter.io/developer/1863586316) | [Dion Yang](https://appshunter.io/developer/6787450950) |

## What reviewers say

### Chmod Toolkit

[App page](https://appshunter.io/ios/app/chmod-toolkit/id6756904066)

Master Unix file permissions with this comprehensive learning tool. Practice exam simulations, spaced repetition, and detailed progress tracking to prepare for Linux certifications or server hardening. Supports iPhone, iPad, and Mac with iCloud sync.

**Highlights:** Unix permissions mastery, Certification exam simulation, Spaced repetition learning, Domain-specific study, Progress tracking dashboard, Multi-device support with iCloud sync

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features | $24.99 | one-time |


### DevToolkit Mobile

[App page](https://appshunter.io/ios/app/devtoolkit-mobile/id6787450948)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chmod Toolkit free?

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

### Is DevToolkit Mobile free?

DevToolkit Mobile is free to download, with no in-app purchases.

### Do Chmod Toolkit or DevToolkit Mobile have ads?

DevToolkit Mobile shows ads; Chmod Toolkit does not.

### Which is updated more often, Chmod Toolkit or DevToolkit Mobile?

Chmod Toolkit ships an update every 5 days, and DevToolkit Mobile monthly. Most recently, Chmod Toolkit was updated on October 6, 2026 and DevToolkit Mobile on October 10, 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.*