# INFINIT SMART KEY vs Run Custom JS on Background

The clearest difference is update cadence: INFINIT SMART KEY at every 5 weeks against Run Custom JS on Background's every 4 months. INFINIT SMART KEY also leads on iOS requirement (12.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

INFINIT SMART KEY ships an update every 5 weeks, Run Custom JS on Background every 4 months. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | INFINIT SMART KEY | Run Custom JS on Background |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Size | 54 MB | 1 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hatem Alsehimi](https://appshunter.io/developer/1797489738) | [Takada Hiroki](https://appshunter.io/developer/1847165450) |

## What reviewers say

### INFINIT SMART KEY

[App page](https://appshunter.io/ios/app/infinit-smart-key/id6743720893)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is INFINIT SMART KEY free?

INFINIT SMART KEY is free to download, with no in-app purchases.

### Is Run Custom JS on Background free?

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

### Do INFINIT SMART KEY or Run Custom JS on Background have ads?

Neither INFINIT SMART KEY nor Run Custom JS on Background shows ads.

### Which is updated more often, INFINIT SMART KEY or Run Custom JS on Background?

INFINIT SMART KEY ships an update every 5 weeks, and Run Custom JS on Background every 4 months. Most recently, INFINIT SMART KEY was updated on November 8, 2026 and Run Custom JS on Background on November 5, 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.*