# chmod vs StopCopy

The clearest difference is in-app purchases: chmod at none against StopCopy's 1. chmod also leads on update cadence (every 5 months vs every 33 months) and iOS requirement (8.2 vs 14.4). On price, ads and device support there is nothing between them.

Both are free to download. StopCopy sells 1 one-off in-app purchase. chmod asks for nothing beyond the download.

chmod ships an update every 5 months, StopCopy every 33 months. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | chmod | StopCopy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chmod-fu/id927838132/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 33 months |
| Monetization | Free | — |
| Size | 10 MB | 2 MB |
| Requires iOS | **8.2** | 14.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Red Shark AB](https://appshunter.io/developer/927838131) | [Robin Bollen](https://appshunter.io/developer/1154965245) |

## What reviewers say

### chmod

[App page](https://appshunter.io/ios/app/chmod-fu/id927838132)

This app helps you understand and master the 'chmod' command by easily deciphering octal values. Choose to click individual bits or select octal values to learn file permissions.

**Highlights:** Decipher octal values, Learn file permissions, User-friendly interface, Click individual bits, Select octal values

**Features:** macOS Compatibility

**In-app purchases:** none


### StopCopy

[App page](https://appshunter.io/ios/app/stopcopy/id1554654540)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip jar | $0.99 | one-time |


## Frequently asked questions

### Is chmod free?

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

### Is StopCopy free?

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

### Do chmod or StopCopy have ads?

Neither chmod nor StopCopy shows ads.

### Which is updated more often, chmod or StopCopy?

chmod ships an update every 5 months, and StopCopy every 33 months. Most recently, chmod was updated on October 13, 2026 and StopCopy on October 16, 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.*