# Callie's Pilates vs Harmony Studios

The clearest difference is update cadence: Callie's Pilates at every 3 weeks against Harmony Studios's every 7 months. Callie's Pilates also leads on ratings volume (6 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Harmony Studios holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Callie's Pilates has 6 ratings behind it against 1, so its average is the more settled of the two.

Callie's Pilates ships an update every 3 weeks, Harmony Studios every 7 months. The most recent releases landed on October 9, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Callie's Pilates | Harmony Studios |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (6 ratings)](https://appshunter.io/ios/app/callies-pilates/id1495851699/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/harmony-studios/id6740332001/reviews)** |
| Number of ratings | **6** | 1 |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 129 MB | 129 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Callie's Pilates LLC](https://appshunter.io/developer/1495851698) | [Harmony Yoga Studios LLC](https://appshunter.io/developer/1789534137) |

## What reviewers say

### Callie's Pilates

[App page](https://appshunter.io/ios/app/callies-pilates/id1495851699)

Easily plan and schedule your fitness classes directly from your mobile device. Sign up, cancel, and purchase class packages with exclusive discounts. Access studio location and contact details, plus connect with social media pages.

**Highlights:** Schedule and book classes, Cancel class reservations, Purchase class packages, View studio location, Access contact information, Connect to social pages

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Harmony Studios

[App page](https://appshunter.io/ios/app/harmony-studios/id6740332001)

Plan and schedule your fitness classes directly from your mobile device. View class schedules, sign up for sessions, and access studio location details. Optimize your time and convenience for class bookings.

**Highlights:** View class schedules, Sign up for classes, Studio location information, Optimize class booking, Mobile class management

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

**In-app purchases:** none


## Frequently asked questions

### Is Callie's Pilates free?

Callie's Pilates is free to download, with no in-app purchases.

### Is Harmony Studios free?

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

### Which has better reviews, Callie's Pilates or Harmony Studios?

Harmony Studios is rated higher. Callie's Pilates averages 4.8 out of 5 from 6 ratings, while Harmony Studios averages 5.0 from 1 ratings.

### Do Callie's Pilates or Harmony Studios have ads?

Both Callie's Pilates and Harmony Studios show ads.

### Which is updated more often, Callie's Pilates or Harmony Studios?

Callie's Pilates ships an update every 3 weeks, and Harmony Studios every 7 months. Most recently, Callie's Pilates was updated on October 9, 2026 and Harmony Studios on October 18, 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.*