# THREE15 STUDIO vs The Optimist Pilates

The clearest difference is ratings volume: THREE15 STUDIO at 67 against The Optimist Pilates's 11. On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for THREE15 STUDIO against 5.0 for The Optimist Pilates. That said, the two scores are not equally well evidenced: THREE15 STUDIO has 67 ratings behind it against 11, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | THREE15 STUDIO | The Optimist Pilates |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (67 ratings)](https://appshunter.io/ios/app/three15-studio/id6477896937/reviews) | [5.0 (11 ratings)](https://appshunter.io/ios/app/the-optimist-pilates/id6749337929/reviews) |
| Number of ratings | **67** | 11 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 38 MB | 38 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [THREE 15, LLC](https://appshunter.io/developer/1489994363) | [Pilates House Limited Liability Company](https://appshunter.io/developer/1830097340) |

## What reviewers say

### THREE15 STUDIO

[App page](https://appshunter.io/ios/app/three15-studio/id6477896937)

This app offers a variety of fitness classes including cycling, barre, and strength training. Explore different class lengths and formats designed for all fitness levels, from beginner to advanced.

**Highlights:** Rhythm-based cycling, Barre workouts, Strength training, Full body stretching, Beginner-friendly classes, Various class lengths

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

**In-app purchases:** none


### The Optimist Pilates

[App page](https://appshunter.io/ios/app/the-optimist-pilates/id6749337929)

Easily browse and purchase class packs or membership options. View the schedule, filter classes by type, and manage your reservations to stay organized and committed to your fitness goals.

**Highlights:** Purchase class packs and memberships, Browse class schedule, Filter classes by type, Manage class reservations, Stay organized with fitness goals

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is THREE15 STUDIO free?

THREE15 STUDIO is free to download, with no in-app purchases.

### Is The Optimist Pilates free?

The Optimist Pilates is free to download, with no in-app purchases.

### Which has better reviews, THREE15 STUDIO or The Optimist Pilates?

THREE15 STUDIO and The Optimist Pilates are both rated 5.0 out of 5 on the App Store, from 67 and 11 ratings respectively.

### Do THREE15 STUDIO or The Optimist Pilates have ads?

Neither THREE15 STUDIO nor The Optimist Pilates shows ads.

### Which is updated more often, THREE15 STUDIO or The Optimist Pilates?

THREE15 STUDIO ships an update every 3 weeks, and The Optimist Pilates every 3 weeks. Most recently, THREE15 STUDIO was updated on October 30, 2026 and The Optimist Pilates on November 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.*