# 4PS On vs Nedap Harmony

The clearest difference is update cadence: Nedap Harmony at every 4 weeks against 4PS On's every 2 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.

4PS On ships an update every 2 months, Nedap Harmony every 4 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 4PS On | Nedap Harmony |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Size | 39 MB | 132 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [4PS Development B.V.](https://appshunter.io/developer/1009267709) | [Nedap](https://appshunter.io/developer/407929414) |

## What reviewers say

### 4PS On

[App page](https://appshunter.io/ios/app/4ps-on-site/id1457667772)

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

**In-app purchases:** none


### Nedap Harmony

[App page](https://appshunter.io/ios/app/nedap-harmony/id6443845289)

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

**In-app purchases:** none


## Frequently asked questions

### Is 4PS On free?

4PS On is free to download, with no in-app purchases.

### Is Nedap Harmony free?

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

### Do 4PS On or Nedap Harmony have ads?

Neither 4PS On nor Nedap Harmony shows ads.

### Which is updated more often, 4PS On or Nedap Harmony?

4PS On ships an update every 2 months, and Nedap Harmony every 4 weeks. Most recently, 4PS On was updated on October 29, 2026 and Nedap Harmony on October 30, 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.*