# SideBooks vs マチイロ

The clearest difference is review sentiment: SideBooks at 74% against マチイロ's 5%. SideBooks also leads on update cadence (every 9 days vs monthly). マチイロ's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SideBooks sells 1 one-off in-app purchase. マチイロ asks for nothing beyond the download.

SideBooks ships an update every 9 days, マチイロ monthly. Both last shipped on October 29, 2026.

## The numbers

| Metric | SideBooks | マチイロ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (97 ratings)](https://appshunter.io/ios/app/sidebooks/id409777225/reviews)** | — |
| Number of ratings | **97** | — |
| Positive reviews | **73.7% of reviews** | 5.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 17 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Tatsumi-system Co., Ltd.](https://appshunter.io/developer/409777230) | [JICHITAI WORKS, K.K](https://appshunter.io/developer/1800634387) |

## What reviewers say

### SideBooks

[App page](https://appshunter.io/ios/app/sidebooks/id409777225)

This app offers a high-performance PDF and comic viewer with realistic paper-turning animations. It supports various viewing directions, enhanced bookshelf management, and secure password protection for your documents. Easily import files from multiple sources and enjoy a customizable reading experience.

**Highlights:** Realistic paper curl animation, Multiple viewing directions, Enhanced bookshelf management, Password protection, Dropbox and iTunes file import, Supports PDF, ZIP, CBZ, RAR, CBR

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thema extension Add-On | $0.99 | one-time |

**What reviewers like**

- 🚀 Smooth page turning
- 📚 Great for reading comics and manga
- 🗂️ Excellent folder organization
- 🔍 Useful search and table of contents features
- 💻 Seamless Dropbox integration

**What reviewers complain about**

- 🐛 Crashes when loading large files
- 🚫 Limited file format support (no CBZ/CBR)
- 🔍 Difficult to find and delete books
- 🔒 Requires Dropbox access, no local file support
- 🔍 Small thumbnail size makes it hard to browse

**Reported bugs**

- Crashes when opening certain PDF files
- Corrupted files cause repeated crashes
- Dropbox integration issues on some devices

**Requested features**

- Add support for ePub and other popular formats
- Implement iCloud/Google Drive integration
- Allow manual rearrangement of bookshelf
- Add dark mode and customizable background options
- Improve bookmark and annotation features


### マチイロ

[App page](https://appshunter.io/ios/app/id855062660)

This app provides local government news and information, allowing users to stay updated on their community. It offers push notifications for the latest updates and free access to official city newsletters. Users can also explore content that makes local government more accessible.

**Highlights:** Local government news updates, Push notifications for latest info, Free access to city newsletters, Content to make local government accessible, Information on various municipalities, Translated newsletters available

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

**In-app purchases:** none


## Frequently asked questions

### Is SideBooks free?

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

### Is マチイロ free?

マチイロ is free to download, with no in-app purchases.

### Do SideBooks or マチイロ have ads?

Neither SideBooks nor マチイロ shows ads.

### Which is updated more often, SideBooks or マチイロ?

SideBooks ships an update every 9 days, and マチイロ monthly. Most recently, SideBooks was updated on October 29, 2026 and マチイロ on October 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.*