# Cown Zoo — Customize your web browsing.

> Mobile-native Safari extension for custom JavaScript and CSS injection. (iPhone/iPad app by Inkwire Tech (Hangzhou) Co., Ltd..)

- Source: https://appshunter.io/ios/app/cown-zoo/id1596457459 (this page in markdown: same URL + `.md`)
- Developer: [Inkwire Tech (Hangzhou) Co., Ltd.](https://appshunter.io/developer/1468283514)
- Category: Developer Tools, Utilities
- Price: $1.99
- Rating: 2.00/5 from 3 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 14 MB
- Languages: American English
- Released: 2022-01-07
- Data updated: 2026-08-23
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/cown-zoo/id1596457459/reviews.md

## What is Cown Zoo?

Cown Zoo is an app that allows you to create, edit and inject scripts into any webpage on Safari.
It's designed to be mobile-native as to simplify the usage and creation of user scripts and stylesheets on mobile devices.

- Add your own JavaScript or CSS to any webpage
- Edit script & CSS right in app
- (Partial) support for GreaseMonkey scripts

## Key features

- Create custom scripts
- Edit user scripts
- Inject CSS to webpages
- Mobile-native interface
- GreaseMonkey script support

## Chart rankings

- #140 in Top Paid · Developer Tools (US App Store)

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/cown-zoo/id1596457459/reviews.md

### 1/5 — Don’t buy this app!

*2023-03-12*

It don’t work! After the last update, the developer broke it and it don’t work anymore. It’s a total waste of money!

**Developer response:** Hello, in our testing it works fine. Would you please describe what is not working more specifically, with your iOS version info, so we can look into it? We’d be very happy if you can reach us at zoo (at) cown.app.

### 1/5 — It doesn't work on safari

*2023-02-25*

No script was injected on this page.

### 5/5 — Perfect for customising webpages

*2022-07-12*

This app does exactly what I was looking for. Makes it really easy to customise a webpage via js/css. Thanks for making this!

**Developer response:** Thank you for your warm comment!

### 5/5 — Macht was es soll, perfekt!

*2022-02-01*

Habe genau nach solch einer App gesucht, nun habe ich Sie gefunden. Ich finde dafür sind die 0,99 Euro wert

## Frequently asked questions about Cown Zoo

### What is Cown Zoo?

Cown Zoo is a mobile application designed for Safari that allows users to create, edit, and inject custom JavaScript and CSS scripts into any webpage. It aims to simplify the process of user script management on mobile devices.

### What platforms does Cown Zoo support?

Cown Zoo is available for both iPhone and iPad devices, offering a tailored experience for Apple's mobile ecosystem.

### How much does Cown Zoo cost?

Cown Zoo is a paid application, priced at $1.99. This one-time purchase grants access to all its features for customizing web browsing.

### Does Cown Zoo have ads?

No, Cown Zoo does not contain advertisements. As a paid application, it provides an ad-free experience for its users.

### What is the age rating for Cown Zoo?

Cown Zoo has an age rating of 4+, making it suitable for a wide range of users interested in web development and customization tools.

### How often is Cown Zoo updated?

The latest version of Cown Zoo, 1.5, was last updated on January 4, 2026. While this indicates a specific update date, users can generally expect ongoing support and potential improvements.

### Can Cown Zoo inject GreaseMonkey scripts?

Yes, Cown Zoo offers partial support for GreaseMonkey scripts, allowing users to leverage existing script libraries for enhanced web functionality.

### What is the user sentiment for Cown Zoo based on ratings?

Based on the available data, Cown Zoo has a rating of 2.0 stars from 3 ratings. This suggests that current user feedback is mixed, and there may be areas for improvement.

## Version history (last 5 releases)

### 1.5 — 2026-01-04

- Set execution context (@inject-into) for your script. Zoo Runtime API is now only available when running in Content Script context.
- Script injection engine has been rebuilt from scratch. It’s much faster and much less error prone, and runs on newer iOS versions.
- Tweaked design to adopt Liquid Glass on iOS 26.
- Popup now shows script injection status if the script failed.

Zoo now supports iOS 17 and later.

Thank you for your patience and support.

### 1.4 — 2022-09-12

- Permission section for scripts.
- New runtime API: Zoo.clipboard.writeText
- GreaseMonkey compatibility: GM.setClipboard
- Various UI changes for new iOS / iPadOS appearance.
- Scripts end with a comment line are now correctly injected.
- Third-party dependencies updated.

### 1.3 — 2022-06-01

- A shiny new code editor with JS/CSS syntax highlights and customizability, powered by Runestone.framework.
- Support adding local JS/CSS code files.
- Redesigned Settings page to fit new Editing settings.
- Refactored a lot of inner working.
- Fixed some layout issues on iPad.

### 1.2 — 2022-05-02

- Redesigned script detail page.
- Supports Universal Links to create script, see documentation for more info.
- Page matching rules now have their own tab and are easier to modify.
- Update dependencies.

### 1.1 — 2022-04-23

- Toggles are added to the script list and detail page for toggling off and on certain scripts.
- Added option to change script name when editing a script.
- Stability improvements.

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All apps by Inkwire Tech (Hangzhou) Co., Ltd.: https://appshunter.io/developer/1468283514

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*