# The Optimal Lab vs CONDITN. Booking

The clearest difference is update cadence: CONDITN. Booking at every 4 weeks against The Optimal Lab's every 25 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.

The Optimal Lab ships an update every 25 months, CONDITN. Booking every 4 weeks. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | The Optimal Lab | CONDITN. Booking |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 4 weeks** |
| Size | 31 MB | 190 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [THE OPTIMAL LAB (ST LEONARDS) PTY LTD](https://appshunter.io/developer/1557251933) | [Cardia Capital Pty Ltd](https://appshunter.io/developer/1720935125) |

## What reviewers say

### The Optimal Lab

[App page](https://appshunter.io/ios/app/the-optimal-lab/id1593381703)

**Features:** macOS Compatibility

**In-app purchases:** none


### CONDITN. Booking

[App page](https://appshunter.io/ios/app/conditn-booking/id6474183993)

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

**In-app purchases:** none


## Frequently asked questions

### Is The Optimal Lab free?

The Optimal Lab is free to download, with no in-app purchases.

### Is CONDITN. Booking free?

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

### Do The Optimal Lab or CONDITN. Booking have ads?

Neither The Optimal Lab nor CONDITN. Booking shows ads.

### Which is updated more often, The Optimal Lab or CONDITN. Booking?

The Optimal Lab ships an update every 25 months, and CONDITN. Booking every 4 weeks. Most recently, The Optimal Lab was updated on October 25, 2026 and CONDITN. Booking on October 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.*