# Oti & Marius Dance Studio vs Chum

The clearest difference is in-app purchases: Oti & Marius Dance Studio at none against Chum's 3. Chum's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Chum sells 3 in-app purchases, starting at $12.99 per month. Oti & Marius Dance Studio asks for nothing beyond the download.

Oti & Marius Dance Studio ships an update every 3 months, Chum every 3 weeks. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Oti & Marius Dance Studio | Chum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 59 MB | 9 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [TeamUp Sports](https://appshunter.io/developer/1449504626) | [Chum App Limited](https://appshunter.io/developer/1886776466) |

## What reviewers say

### Oti & Marius Dance Studio

[App page](https://appshunter.io/ios/app/oti-and-marius-dance-studio/id6754596510)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chum

[App page](https://appshunter.io/ios/app/chum/id6760918409)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chum Plus | $12.99 | per month |
| Chum Plus | $30.99 | per 3 months |
| Chum Plus | $105.99 | per year |


## Frequently asked questions

### Is Oti & Marius Dance Studio free?

Oti & Marius Dance Studio is free to download, with no in-app purchases.

### Is Chum free?

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

### Do Oti & Marius Dance Studio or Chum have ads?

Neither Oti & Marius Dance Studio nor Chum shows ads.

### Which is updated more often, Oti & Marius Dance Studio or Chum?

Oti & Marius Dance Studio ships an update every 3 months, and Chum every 3 weeks. Most recently, Oti & Marius Dance Studio was updated on October 11, 2026 and Chum on October 8, 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.*