# THREE15 STUDIO vs Radiant Forme

THREE15 STUDIO and Radiant Forme are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | THREE15 STUDIO | Radiant Forme |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (67 ratings)](https://appshunter.io/ios/app/three15-studio/id6477896937/reviews)** | — |
| Number of ratings | **67** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | 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) | [Radiant Forme LLC](https://appshunter.io/developer/6798465161) |

## 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


### Radiant Forme

[App page](https://appshunter.io/ios/app/radiant-forme/id6798465159)

**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 Radiant Forme free?

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

### Do THREE15 STUDIO or Radiant Forme have ads?

Neither THREE15 STUDIO nor Radiant Forme shows ads.

### Which is updated more often, THREE15 STUDIO or Radiant Forme?

THREE15 STUDIO ships an update every 3 weeks, and Radiant Forme every 3 weeks. Most recently, THREE15 STUDIO was updated on October 30, 2026 and Radiant Forme on October 31, 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.*