# Run Custom JS on Background vs ProEncryptor

Run Custom JS on Background and ProEncryptor are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Run Custom JS on Background | ProEncryptor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Takada Hiroki](https://appshunter.io/developer/1847165450) | [Uniation Software Co.,Ltd.](https://appshunter.io/developer/553421889) |

## What reviewers say

### Run Custom JS on Background

[App page](https://appshunter.io/ios/app/run-custom-js-on-background/id6755627440)

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

**In-app purchases:** none


### ProEncryptor

[App page](https://appshunter.io/ios/app/proencryptor-file-encryption/id6803478598)

**In-app purchases:** none


## Frequently asked questions

### Is Run Custom JS on Background free?

Run Custom JS on Background is free to download, with no in-app purchases.

### Is ProEncryptor free?

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

### Do Run Custom JS on Background or ProEncryptor have ads?

Neither Run Custom JS on Background nor ProEncryptor 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.*