# Messara Museum Guide vs Dion Guide

The clearest difference is update cadence: Dion Guide at monthly against Messara Museum Guide's every 23 months. 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.

Messara Museum Guide ships an update every 23 months, Dion Guide monthly. The most recent releases landed on October 15, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Messara Museum Guide | Dion Guide |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Monthly** |
| Size | 149 MB | 41 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Foundation for Research and Technology - Hellas](https://appshunter.io/developer/821667445) | [Ioannis Karafyllias](https://appshunter.io/developer/1850112249) |

## What reviewers say

### Messara Museum Guide

[App page](https://appshunter.io/ios/app/messara-museum-guide/id6451268538)

**Features:** Vision Pro support

**In-app purchases:** none


### Dion Guide

[App page](https://appshunter.io/ios/app/dion-guide/id6754791803)

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

**In-app purchases:** none


## Frequently asked questions

### Is Messara Museum Guide free?

Messara Museum Guide is free to download, with no in-app purchases.

### Is Dion Guide free?

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

### Do Messara Museum Guide or Dion Guide have ads?

Neither Messara Museum Guide nor Dion Guide shows ads.

### Which is updated more often, Messara Museum Guide or Dion Guide?

Messara Museum Guide ships an update every 23 months, and Dion Guide monthly. Most recently, Messara Museum Guide was updated on October 15, 2026 and Dion Guide on September 30, 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.*