# ZenReader vs Control Studio

The clearest difference is price: ZenReader at Free against Control Studio's $2.99. ZenReader also leads on iOS requirement (13.0 vs 15.6). Control Studio's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support there is nothing between them.

ZenReader is free to download; Control Studio costs $2.99 up front. ZenReader sells 4 in-app purchases, starting at $6.99 per year. Control Studio asks for nothing beyond the download.

ZenReader ships an update every 2 weeks, Control Studio every 5 days. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ZenReader | Control Studio |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.7 (359 ratings)](https://appshunter.io/ios/app/zenreader-read-ebooks-easily/id1660751056/reviews)** | — |
| Number of ratings | **359** | — |
| Positive reviews | 81.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 64 MB | 2 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LexyTech Ltd.](https://appshunter.io/developer/1643712954) | [Konstantinos Ladiellis](https://appshunter.io/developer/1516103440) |

## What reviewers say

### ZenReader

[App page](https://appshunter.io/ios/app/zenreader-read-ebooks-easily/id1660751056)

This app is a versatile ebook reader and document manager supporting numerous file formats. It offers a customizable reading interface, note-taking capabilities, text-to-speech functionality, and robust library management features. Track your reading progress and protect your privacy with advanced security options.

**Highlights:** Supports EPUB, MOBI, PDF, TXT, ZIP, RAR, and more, Customizable reading interface with night mode, Note-taking, highlighting, and dictionary integration, Text-to-speech with multiple language options, Wi-Fi transfer, iCloud, and AirDrop import, Gesture and facial recognition for privacy, Reading statistics and goal setting

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1年订阅 | $6.99 | per year |
| 限时特惠 | $9.99 | one-time |
| Pro专业版 | $14.99 | one-time |
| Pro渠道优惠 | $39.99 | one-time |

**What reviewers like**

- 👍 Simple and intuitive user interface
- 📚 Excellent TXT file reading capabilities
- 🔄 Seamless synchronization across Apple devices
- ⚡ Smooth and responsive performance
- 🎨 Beautiful and minimalist design

**What reviewers complain about**

- 🐛 Text replacement fails intermittently
- 🐛 Chapter segmentation issues and duplicates
- 🐛 File parsing errors on some formats
- 🐛 Screen lock stops audiobook playback
- 🐛 Voice narration changed to Cantonese after iOS 18 update

**Reported bugs**

- Text replacement shows success but reverts after reopening
- Duplicate chapters in segmentation
- File parsing errors on valid documents
- Audiobook stops when screen locks
- Voice narration language changed to Cantonese after iOS 18

**Requested features**

- Simplified audiobook playback controls
- Flexible audiobook starting point selection
- Include audiobook listening time in statistics
- English language UI support
- Direct TXT file editing capability


### Control Studio

[App page](https://appshunter.io/ios/app/control-studio/id6758959853)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZenReader free?

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

### Is Control Studio free?

Control Studio costs $2.99, with no in-app purchases.

### Do ZenReader or Control Studio have ads?

ZenReader shows ads; Control Studio does not.

### Which is updated more often, ZenReader or Control Studio?

ZenReader ships an update every 2 weeks, and Control Studio every 5 days. Most recently, ZenReader was updated on September 22, 2026 and Control Studio on September 10, 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.*