# Ultra Reaction vs Paperback

The clearest difference is in-app purchases: Paperback at none against Ultra Reaction's 2. Paperback also leads on update cadence (every 2 weeks vs every 5 months) and ratings volume (643 vs 69). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Ultra Reaction sells 2 one-off in-app purchases. Paperback asks for nothing beyond the download.

Ultra Reaction holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Paperback has 643 ratings behind it against 69, so its average is the more settled of the two. Written reviews point the same way: 58% of Ultra Reaction's written reviews are positive against 54% of Paperback's.

Ultra Reaction ships an update every 5 months, Paperback every 2 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Ultra Reaction | Paperback |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (69 ratings)](https://appshunter.io/ios/app/ultra-reaction/id547207232/reviews)** | [4.3 (643 ratings)](https://appshunter.io/ios/app/paperback-comicmanga-reader/id1626613373/reviews) |
| Number of ratings | 69 | **643** |
| Positive reviews | **58.2% of reviews** | 53.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 33 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Fabio Bassan](https://appshunter.io/developer/541863498) | [Faizan Durrani](https://appshunter.io/developer/1626613375) |

## What reviewers say

### Ultra Reaction

[App page](https://appshunter.io/ios/app/ultra-reaction/id547207232)

Test and improve your reflex speed with this engaging game. Compete across multiple modes, track your progress, and challenge friends to become the ultimate speed champion. It's a fun way to enhance reaction times for various fast-paced activities.

**Highlights:** 3 game modes (responsive, dynamic, endless), 7 difficulty levels, Game Center integration, Leaderboard and achievements, Reaction time training, Improve speed and agility, Enhance concentration and endurance

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |
| Supporter Pack | $0.99 | one-time |


### 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 Ultra Reaction free?

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

### Is Paperback free?

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

### Which has better reviews, Ultra Reaction or Paperback?

Ultra Reaction is rated higher. Ultra Reaction averages 4.5 out of 5 from 69 ratings, while Paperback averages 4.3 from 643 ratings.

### Do Ultra Reaction or Paperback have ads?

Neither Ultra Reaction nor Paperback shows ads.

### Which is updated more often, Ultra Reaction or Paperback?

Ultra Reaction ships an update every 5 months, and Paperback every 2 weeks. Most recently, Ultra Reaction was updated on October 23, 2026 and Paperback on October 24, 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.*