# Arbox vs OPTIfit.

The clearest difference is update cadence: Arbox at every 2 months against OPTIfit.'s every 5 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.

Arbox ships an update every 2 months, OPTIfit. every 5 months. The most recent releases landed on September 22, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Arbox | OPTIfit. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (110 ratings)](https://appshunter.io/ios/app/arbox/id1037717356/reviews)** | — |
| Number of ratings | **110** | — |
| Positive reviews | 35.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | — |
| Size | 48 MB | 174 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Arbox LTD](https://appshunter.io/developer/1021244486) | [OPTIfit Fitnessclub GbR](https://appshunter.io/developer/1582456382) |

## What reviewers say

### Arbox

[App page](https://appshunter.io/ios/app/arbox/id1037717356)

Manage your fitness membership and connect with your gym or studio. Book classes, track progress, and interact with other members. Stay updated with gym news and purchase merchandise directly within the app.

**Highlights:** Book and cancel classes, View class schedules, Gym and studio updates feed, Manage memberships and punch cards, Purchase merchandise, Community interaction, Log workout results

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

**In-app purchases:** none


### OPTIfit.

[App page](https://appshunter.io/ios/app/optifit/id1582456380)

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

**In-app purchases:** none


## Frequently asked questions

### Is Arbox free?

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

### Is OPTIfit. free?

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

### Do Arbox or OPTIfit. have ads?

Neither Arbox nor OPTIfit. shows ads.

### Which is updated more often, Arbox or OPTIfit.?

Arbox ships an update every 2 months, and OPTIfit. every 5 months. Most recently, Arbox was updated on September 22, 2026 and OPTIfit. on September 15, 2026.

---

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