CHI50 vs Common Language Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CHI50
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.
- Book fitness classes
- Purchase credits
- Buy memberships
- Manage account
- State-of-the-art Megaformer workouts
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At CHI50, Tone, Sculpt, Shake and Sweat through 50 minutes on our state-of-the-art Megaformer machines that will tap into muscles you’ve never used before. Download our app to book classes, buy credits or a membership, and more!
Common Language Studio
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.
- Purchase class packs and memberships
- View and filter class schedule
- Manage class reservations
- Organize fitness schedule
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Features: -Purchase Class Packs and Memberships Easily browse and purchase our class packs or membership options -View our schedule Filter classes by type to find the perfect fit for your routine. -Manage your reservations Book your class reservations with ease. Keep track of your upcoming classes and manage your schedule to stay organized and committed to your fitness goals.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | CHI50 | Common Language Studio |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (53 ratings) — better | 4.6 (9 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 53 — better | 9 |
| Update frequency | Every 4 weeks | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 38 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Byrd Fitness LLC | Samantha Mostaccio Movement LLC |
Customer experience
CHI50
Common Language Studio
In-app purchases
CHI50
No in-app purchases
Common Language Studio
No in-app purchases
Questions
Is CHI50 free?
Is Common Language Studio free?
Which has better reviews, CHI50 or Common Language Studio?
Do CHI50 or Common Language Studio have ads?
Which is updated more often, CHI50 or Common Language Studio?
Other comparisons
