# PMS Merchant vs BookOne Orbit

The clearest difference is update cadence: BookOne Orbit at every 3 months against PMS Merchant's every 38 months. BookOne Orbit also leads on iOS requirement (13.0 vs 15.6). 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.

PMS Merchant ships an update every 38 months, BookOne Orbit every 3 months. The most recent releases landed on September 17, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | PMS Merchant | BookOne Orbit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 3 months** |
| Size | 33 MB | 49 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bluu, Inc.](https://appshunter.io/developer/978926661) | [CredenceSoft Limited](https://appshunter.io/developer/1479329579) |

## What reviewers say

### PMS Merchant

[App page](https://appshunter.io/ios/app/pms-merchant/id1445445007)

**Features:** macOS Compatibility

**In-app purchases:** none


### BookOne Orbit

[App page](https://appshunter.io/ios/app/bookone-orbit/id1479329580)

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

**In-app purchases:** none


## Frequently asked questions

### Is PMS Merchant free?

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

### Is BookOne Orbit free?

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

### Do PMS Merchant or BookOne Orbit have ads?

Neither PMS Merchant nor BookOne Orbit shows ads.

### Which is updated more often, PMS Merchant or BookOne Orbit?

PMS Merchant ships an update every 38 months, and BookOne Orbit every 3 months. Most recently, PMS Merchant was updated on September 17, 2026 and BookOne Orbit on September 24, 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.*