# OMS vs 4PS Hours App

The clearest difference is update cadence: 4PS Hours App at every 2 months against OMS's every 13 months. OMS's advantage is iOS requirement (11.0 vs 14.0). 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.

OMS ships an update every 13 months, 4PS Hours App every 2 months. The most recent releases landed on September 7, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | OMS | 4PS Hours App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 months** |
| Size | 6 MB | 17 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [E.N.A.I. Systems B.V.](https://appshunter.io/developer/511059631) | [4PS Development B.V.](https://appshunter.io/developer/1009267709) |

## What reviewers say

### OMS

[App page](https://appshunter.io/ios/app/oms/id1272630026)

**Features:** macOS Compatibility

**In-app purchases:** none


### 4PS Hours App

[App page](https://appshunter.io/ios/app/4ps-hours-app/id1318761547)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OMS free?

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

### Is 4PS Hours App free?

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

### Do OMS or 4PS Hours App have ads?

Neither OMS nor 4PS Hours App shows ads.

### Which is updated more often, OMS or 4PS Hours App?

OMS ships an update every 13 months, and 4PS Hours App every 2 months. Most recently, OMS was updated on September 7, 2026 and 4PS Hours App on October 26, 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.*