# Sudoku EPIS vs eXeReader

The clearest difference is iOS requirement: Sudoku EPIS at 10.0 against eXeReader's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sudoku EPIS ships an update every 22 months, eXeReader every 38 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sudoku EPIS | eXeReader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 22 months** | Every 38 months |
| Size | 44 MB | 29 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mutua Universal](https://appshunter.io/developer/648858415) | [Instituto Nacional de Tecnologias Educativas y Formacion del Profesorado](https://appshunter.io/developer/1081307564) |

## What reviewers say

### Sudoku EPIS

[App page](https://appshunter.io/ios/app/sudoku-epis/id1438710585)

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

**In-app purchases:** none


### eXeReader

[App page](https://appshunter.io/ios/app/exereader/id6444196265)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku EPIS free?

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

### Is eXeReader free?

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

### Do Sudoku EPIS or eXeReader have ads?

Neither Sudoku EPIS nor eXeReader shows ads.

### Which is updated more often, Sudoku EPIS or eXeReader?

Sudoku EPIS ships an update every 22 months, and eXeReader every 38 months. Most recently, Sudoku EPIS was updated on October 29, 2026 and eXeReader 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.*