# MDI Align vs Sonder Studios

The clearest difference is update cadence: MDI Align at every 2 months against Sonder Studios's every 9 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.

MDI Align ships an update every 2 months, Sonder Studios every 9 months. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | MDI Align | Sonder Studios |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (23 ratings)](https://appshunter.io/ios/app/sonder-studios/id6754845159/reviews)** |
| Number of ratings | — | **23** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | — | Free |
| Size | 94 MB | 55 MB |
| Requires iOS | **14.1** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RTI International](https://appshunter.io/developer/549719529) | [Momence, Inc.](https://appshunter.io/developer/1577856011) |

## What reviewers say

### MDI Align

[App page](https://appshunter.io/ios/app/mdi-align/id1612840509)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sonder Studios

[App page](https://appshunter.io/ios/app/sonder-studios/id6754845159)

Manage your account, book classes, and stay connected with this studio. Easily message staff, view announcements, and access shared content. A convenient way to engage with your fitness community.

**Highlights:** Account management, Class and event booking, Direct messaging, Public feed for announcements, Content sharing

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

**In-app purchases:** none


## Frequently asked questions

### Is MDI Align free?

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

### Is Sonder Studios free?

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

### Do MDI Align or Sonder Studios have ads?

Neither MDI Align nor Sonder Studios shows ads.

### Which is updated more often, MDI Align or Sonder Studios?

MDI Align ships an update every 2 months, and Sonder Studios every 9 months. Most recently, MDI Align was updated on September 9, 2026 and Sonder Studios on September 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.*