# Verpleegk. intervent. ABC 2016 vs Omaha System Reference II

The clearest difference is update cadence: Omaha System Reference II at weekly against Verpleegk. intervent. ABC 2016's every 13 months. Verpleegk. intervent. ABC 2016's advantage is iOS requirement (11.0 vs 15.0). 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.

Verpleegk. intervent. ABC 2016 ships an update every 13 months, Omaha System Reference II weekly. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Verpleegk. intervent. ABC 2016 | Omaha System Reference II |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Weekly** |
| Size | 11 MB | 18 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [BSL, onderdeel van Springer Media](https://appshunter.io/developer/550998398) | [Ecare Innovatie B.V.](https://appshunter.io/developer/1267905240) |

## What reviewers say

### Verpleegk. intervent. ABC 2016

[App page](https://appshunter.io/ios/app/verpleegk-intervent-abc-2016/id1128338738)

**Features:** macOS Compatibility

**In-app purchases:** none


### Omaha System Reference II

[App page](https://appshunter.io/ios/app/omaha-system-reference-ii/id1450603395)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Verpleegk. intervent. ABC 2016 free?

Verpleegk. intervent. ABC 2016 is free to download, with no in-app purchases.

### Is Omaha System Reference II free?

Omaha System Reference II is free to download, with no in-app purchases.

### Do Verpleegk. intervent. ABC 2016 or Omaha System Reference II have ads?

Neither Verpleegk. intervent. ABC 2016 nor Omaha System Reference II shows ads.

### Which is updated more often, Verpleegk. intervent. ABC 2016 or Omaha System Reference II?

Verpleegk. intervent. ABC 2016 ships an update every 13 months, and Omaha System Reference II weekly. Most recently, Verpleegk. intervent. ABC 2016 was updated on October 19, 2026 and Omaha System Reference II on October 16, 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.*