# BookFit Clients vs Optimal Performance Centre

The clearest difference is update cadence: BookFit Clients at fortnightly against Optimal Performance Centre's every 9 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.

BookFit Clients ships an update fortnightly, Optimal Performance Centre every 9 months. The most recent releases landed on October 30, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | BookFit Clients | Optimal Performance Centre |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 9 months |
| Size | 48 MB | 56 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bookfit ltd](https://appshunter.io/developer/1712334174) | [TeamUp Sports](https://appshunter.io/developer/1449504626) |

## What reviewers say

### BookFit Clients

[App page](https://appshunter.io/ios/app/bookfit-clients/id6469634381)

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

**In-app purchases:** none


### Optimal Performance Centre

[App page](https://appshunter.io/ios/app/optimal-performance-centre/id6749743972)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BookFit Clients free?

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

### Is Optimal Performance Centre free?

Optimal Performance Centre is free to download, with no in-app purchases.

### Do BookFit Clients or Optimal Performance Centre have ads?

Neither BookFit Clients nor Optimal Performance Centre shows ads.

### Which is updated more often, BookFit Clients or Optimal Performance Centre?

BookFit Clients ships an update fortnightly, and Optimal Performance Centre every 9 months. Most recently, BookFit Clients was updated on October 30, 2026 and Optimal Performance Centre on October 20, 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.*