# KOSMOS 科技 vs Paperback

The clearest difference is update cadence: KOSMOS 科技 at every 2 days against Paperback's every 2 weeks. KOSMOS 科技 also leads on iOS requirement (9.0 vs 13.0). 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.

KOSMOS 科技 ships an update every 2 days, Paperback every 2 weeks. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | KOSMOS 科技 | Paperback |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (569 ratings)](https://appshunter.io/ios/app/paperback-comicmanga-reader/id1626613373/reviews)** |
| Number of ratings | — | **569** |
| Positive reviews | — | 53.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Monetization | — | Free |
| Size | 25 MB | 33 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [法志 陈](https://appshunter.io/developer/1563669488) | [Faizan Durrani](https://appshunter.io/developer/1626613375) |

## What reviewers say

### KOSMOS 科技

[App page](https://appshunter.io/ios/app/kosmos/id1621696019)

**Features:** macOS Compatibility

**In-app purchases:** none


### Paperback

[App page](https://appshunter.io/ios/app/paperback-comicmanga-reader/id1626613373)

This app provides an ad-free reading experience for comics and manga from a Komga server. It offers extensive customization through a scripting API, allowing users to extend its functionality with TypeScript or JavaScript.

**Highlights:** Ad-free reading, Komga server support, TypeScript/JavaScript scripting API, Extensible functionality

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Fantastic app with great features
- 👍 Clean and efficient UI
- 🔒 No ads or in-app purchases
- 🎨 Customizable themes and settings
- 📚 Wide range of manga/comics sources

**What reviewers complain about**

- 🐛 Frequent crashes and stability issues
- 🔍 Confusing setup and onboarding process
- 🔄 Unreliable library sync and update features
- 🕰️ Slow download and loading speeds
- 📱 Compatibility problems on some devices

**Reported bugs**

- JSON token errors when interacting with server
- Inability to add/remove manga from library
- Disappearing navigation UI elements

**Requested features**

- Bookmark/resume reading feature
- Panel-by-panel/smart panel reading mode
- Sync reading progress across devices
- Better documentation and support resources


## Frequently asked questions

### Is KOSMOS 科技 free?

KOSMOS 科技 is free to download, with no in-app purchases.

### Is Paperback free?

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

### Do KOSMOS 科技 or Paperback have ads?

Neither KOSMOS 科技 nor Paperback shows ads.

### Which is updated more often, KOSMOS 科技 or Paperback?

KOSMOS 科技 ships an update every 2 days, and Paperback every 2 weeks. Most recently, KOSMOS 科技 was updated on October 3, 2026 and Paperback on October 16, 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.*