# MSTRS. vs O

The clearest difference is in-app purchases: MSTRS. at none against O's 1. O's advantage is update cadence (every 5 days vs every 2 months) and iOS requirement (15.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. O sells 1 one-off in-app purchase. MSTRS. asks for nothing beyond the download.

MSTRS. ships an update every 2 months, O every 5 days. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | MSTRS. | O |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (14 ratings)](https://appshunter.io/ios/app/mstrs/id1444811533/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 37 MB | 123 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Manuel Herrera](https://appshunter.io/developer/1444811532) | [Prolific Films, LLC](https://appshunter.io/developer/1841213824) |

## What reviewers say

### MSTRS.

[App page](https://appshunter.io/ios/app/mstrs/id1444811533)

Explore a unique art collection through augmented reality. This app showcases remixed masterpieces, allowing users to see the inspiration behind each creation and experience art in a new dimension.

**Highlights:** Augmented Reality art viewing, Remixed masterpieces, Artist inspiration insights, Interactive art exploration, Digital art collection

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

**In-app purchases:** none


### O

[App page](https://appshunter.io/ios/app/o-go/id6758723046)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 4 Tokens | $0.99 | one-time |


## Frequently asked questions

### Is MSTRS. free?

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

### Is O free?

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

### Do MSTRS. or O have ads?

Neither MSTRS. nor O shows ads.

### Which is updated more often, MSTRS. or O?

MSTRS. ships an update every 2 months, and O every 5 days. Most recently, MSTRS. was updated on October 2, 2026 and O on October 11, 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.*