# ChaosiText vs SimpPDF Reader

The clearest difference is in-app purchases: SimpPDF Reader at none against ChaosiText's 2. SimpPDF Reader also leads on update cadence (daily vs every 3 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChaosiText sells 2 one-off in-app purchases. SimpPDF Reader asks for nothing beyond the download.

ChaosiText ships an update every 3 days, SimpPDF Reader daily. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ChaosiText | SimpPDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | **Daily** |
| Size | 41 MB | 1 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Huan Nguyen](https://appshunter.io/developer/1895746699) | [Wei He](https://appshunter.io/developer/6783615797) |

## What reviewers say

### ChaosiText

[App page](https://appshunter.io/ios/app/chaositext-rich-doc-editor/id6767962523)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChaosiText Free 3-Day Trial | Free | one-time |
| ChaosiText Lifetime | $29.99 | one-time |


### SimpPDF Reader

[App page](https://appshunter.io/ios/app/simppdf-reader/id6783615795)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChaosiText free?

ChaosiText is free to download, with in-app purchases available.

### Is SimpPDF Reader free?

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

### Do ChaosiText or SimpPDF Reader have ads?

Neither ChaosiText nor SimpPDF Reader shows ads.

### Which is updated more often, ChaosiText or SimpPDF Reader?

ChaosiText ships an update every 3 days, and SimpPDF Reader daily. Most recently, ChaosiText was updated on October 24, 2026 and SimpPDF Reader on October 28, 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.*