# CHI50 vs Common Language Studio

The clearest difference is ads: CHI50 at none against Common Language Studio's shown. CHI50 also leads on rating (5.0 vs 4.6) and monetization model (free vs ad-supported). On price, update cadence, 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.

CHI50 holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: CHI50 has 53 ratings behind it against 9, so its average is the more settled of the two.

CHI50 ships an update every 4 weeks, Common Language Studio every 3 weeks. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | CHI50 | Common Language Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (53 ratings)](https://appshunter.io/ios/app/chi50/id6479721304/reviews)** | [4.6 (9 ratings)](https://appshunter.io/ios/app/common-language-studio/id6744982650/reviews) |
| Number of ratings | **53** | 9 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 38 MB | 36 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Byrd Fitness LLC](https://appshunter.io/developer/1737074121) | [Samantha Mostaccio Movement LLC](https://appshunter.io/developer/1810312064) |

## What reviewers say

### CHI50

[App page](https://appshunter.io/ios/app/chi50/id6479721304)

Book fitness classes and manage your membership for state-of-the-art Megaformer machine workouts. Engage muscles you've never used before in 50-minute sessions designed to tone, sculpt, shake, and sweat.

**Highlights:** Book fitness classes, Purchase credits, Buy memberships, Manage account, State-of-the-art Megaformer workouts

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

**In-app purchases:** none


### Common Language Studio

[App page](https://appshunter.io/ios/app/common-language-studio/id6744982650)

Browse and purchase class packs or memberships. View and filter the class schedule by type to find your perfect workout. Manage your reservations and stay organized with your fitness goals.

**Highlights:** Purchase class packs and memberships, View and filter class schedule, Manage class reservations, Organize fitness schedule

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is CHI50 free?

CHI50 is free to download, with no in-app purchases.

### Is Common Language Studio free?

Common Language Studio is free to download, with no in-app purchases.

### Which has better reviews, CHI50 or Common Language Studio?

CHI50 is rated higher. CHI50 averages 5.0 out of 5 from 53 ratings, while Common Language Studio averages 4.6 from 9 ratings.

### Do CHI50 or Common Language Studio have ads?

Common Language Studio shows ads; CHI50 does not.

### Which is updated more often, CHI50 or Common Language Studio?

CHI50 ships an update every 4 weeks, and Common Language Studio every 3 weeks. Most recently, CHI50 was updated on September 22, 2026 and Common Language Studio on September 14, 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.*