# Onix Athletic vs Function Studios

The clearest difference is update cadence: Function Studios at every 3 weeks against Onix Athletic's every 23 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.

Onix Athletic ships an update every 23 months, Function Studios every 3 weeks. The most recent releases landed on September 28, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Onix Athletic | Function Studios |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/function-studios/id6743327343/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 45 MB | 38 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Onix Athletic Inc.](https://appshunter.io/developer/1765115615) | [Function Studios Inc.](https://appshunter.io/developer/1637660587) |

## What reviewers say

### Onix Athletic

[App page](https://appshunter.io/ios/app/onix-athletic/id6670167961)

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

**In-app purchases:** none


### Function Studios

[App page](https://appshunter.io/ios/app/function-studios/id6743327343)

Browse and purchase fitness class packs and memberships. View the class schedule, filter by type, and book reservations. Manage your upcoming classes to stay organized and committed to your fitness goals.

**Highlights:** Purchase class packs and memberships, View 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 Onix Athletic free?

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

### Is Function Studios free?

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

### Do Onix Athletic or Function Studios have ads?

Neither Onix Athletic nor Function Studios shows ads.

### Which is updated more often, Onix Athletic or Function Studios?

Onix Athletic ships an update every 23 months, and Function Studios every 3 weeks. Most recently, Onix Athletic was updated on September 28, 2026 and Function Studios on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*