# Flex Studio vs O

The clearest difference is update cadence: Flex Studio at every 3 weeks against O's every 4 months. On price, ads, 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.

Flex Studio ships an update every 3 weeks, O every 4 months. The most recent releases landed on September 12, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Flex Studio | O |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/flex-studio/id1054008985/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Ad-supported | — |
| Size | 190 MB | 191 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HTS Holdings Ltd](https://appshunter.io/developer/1579270383) | [PHOENIX ELEPHANT HOLDING LIMITED](https://appshunter.io/developer/1475496713) |

## What reviewers say

### Flex Studio

[App page](https://appshunter.io/ios/app/flex-studio/id1054008985)

Easily plan and schedule your fitness classes directly from your device. View class schedules, sign up for sessions, and access studio location details. Optimize your time and enjoy the convenience of managing your fitness activities on the go.

**Highlights:** View class schedules, Sign up for classes, Access studio location, Schedule planning, Device-based convenience

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

**In-app purchases:** none


### O

[App page](https://appshunter.io/ios/app/orin/id1475496714)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flex Studio free?

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

### Is O free?

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

### Do Flex Studio or O have ads?

Neither Flex Studio nor O shows ads.

### Which is updated more often, Flex Studio or O?

Flex Studio ships an update every 3 weeks, and O every 4 months. Most recently, Flex Studio was updated on September 12, 2026 and O on September 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.*