# MoBooKit vs Pasterium C

The clearest difference is in-app purchases: MoBooKit at none against Pasterium C's 2. MoBooKit also leads on iOS requirement (14.0 vs 16.0). Pasterium C's advantage is ads (none vs shown) and update cadence (every 6 days vs fortnightly). On price and device support there is nothing between them.

Both are free to download. Pasterium C sells 2 one-off in-app purchases. MoBooKit asks for nothing beyond the download.

MoBooKit ships an update fortnightly, Pasterium C every 6 days. The most recent releases landed on October 31, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | MoBooKit | Pasterium C |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 6 days** |
| Size | 103 MB | 19 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Jose Daniel Macias Reynaud](https://appshunter.io/developer/6775362362) | [KENICHI TAKAOKA](https://appshunter.io/developer/6804616082) |

## What reviewers say

### MoBooKit

[App page](https://appshunter.io/ios/app/mobookit/id6775362360)

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

**In-app purchases:** none


### Pasterium C

[App page](https://appshunter.io/ios/app/pasterium-c/id6817622470)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sunset City & Round Tank | $2.99 | one-time |
| Study with a Bookshelf | $2.99 | one-time |


## Frequently asked questions

### Is MoBooKit free?

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

### Is Pasterium C free?

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

### Do MoBooKit or Pasterium C have ads?

MoBooKit shows ads; Pasterium C does not.

### Which is updated more often, MoBooKit or Pasterium C?

MoBooKit ships an update fortnightly, and Pasterium C every 6 days. Most recently, MoBooKit was updated on October 31, 2026 and Pasterium C on November 7, 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.*