# CATS Input Method Pro vs Quiet Browser

The clearest difference is update cadence: Quiet Browser at every 2 days against CATS Input Method Pro's every 24 months. Quiet Browser also leads on iOS requirement (13.0 vs 17.0). 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.

CATS Input Method Pro ships an update every 24 months, Quiet Browser every 2 days. The most recent releases landed on September 28, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | CATS Input Method Pro | Quiet Browser |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 2 days** |
| Size | 7 MB | 25 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [YIU LEUNG RANDY CHAN](https://appshunter.io/developer/1474191447) | [Shanghai Zhutu Shouguang Technology Co., Ltd.](https://appshunter.io/developer/1720409887) |

## What reviewers say

### CATS Input Method Pro

[App page](https://appshunter.io/ios/app/cats-input-method-pro/id1523143711)

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

**In-app purchases:** none


### Quiet Browser

[App page](https://appshunter.io/ios/app/quiet-browser/id6784949097)

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

**In-app purchases:** none


## Frequently asked questions

### Is CATS Input Method Pro free?

CATS Input Method Pro is free to download, with no in-app purchases.

### Is Quiet Browser free?

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

### Do CATS Input Method Pro or Quiet Browser have ads?

Neither CATS Input Method Pro nor Quiet Browser shows ads.

### Which is updated more often, CATS Input Method Pro or Quiet Browser?

CATS Input Method Pro ships an update every 24 months, and Quiet Browser every 2 days. Most recently, CATS Input Method Pro was updated on September 28, 2026 and Quiet Browser on September 29, 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.*