# Run Custom JS on Background vs TigerText

Run Custom JS on Background and TigerText are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.

Run Custom JS on Background ships an update every 4 months, TigerText every 2 months. The most recent releases landed on September 11, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Run Custom JS on Background | TigerText |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (2 ratings)](https://appshunter.io/ios/app/tigertext/id6774291236/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Paid |
| Size | 1 MB | 1.2 GB |
| Requires iOS | **17.6** | 18.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Takada Hiroki](https://appshunter.io/developer/1847165450) | [William D'angelo](https://appshunter.io/developer/1843360361) |

## 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


### TigerText

[App page](https://appshunter.io/ios/app/tigertext/id6774291236)

This app privately generates descriptive alt text for your photos using on-device AI. Descriptions are embedded directly into images, ensuring they travel with your photos across platforms. It offers editable text, library browsing with accessibility badges, and a focus on user privacy with no data collection or ads.

**Highlights:** On-device AI for private alt text generation, Embeds descriptions directly into images, Editable and re-generatable alt text, Browse library with accessibility badges, Standard IPTC metadata for cross-platform compatibility, VoiceOver support and accessibility features

**Features:** macOS Compatibility

**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 TigerText free?

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

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

Neither Run Custom JS on Background nor TigerText shows ads.

### Which is updated more often, Run Custom JS on Background or TigerText?

Run Custom JS on Background ships an update every 4 months, and TigerText every 2 months. Most recently, Run Custom JS on Background was updated on September 11, 2026 and TigerText on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*