# CPNN vs Interstaff

The clearest difference is iOS requirement: CPNN at 11.4 against Interstaff's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CPNN ships an update every 2 weeks, Interstaff every 3 weeks. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | CPNN | Interstaff |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 9 MB | 79 MB |
| Requires iOS | **11.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BioQuest Global](https://appshunter.io/developer/581489584) | [Interstaff, Inc](https://appshunter.io/developer/1800320587) |

## What reviewers say

### CPNN

[App page](https://appshunter.io/ios/app/cpnn/id1514992371)

**Features:** macOS Compatibility

**In-app purchases:** none


### Interstaff

[App page](https://appshunter.io/ios/app/interstaff/id6745847197)

**In-app purchases:** none


## Frequently asked questions

### Is CPNN free?

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

### Is Interstaff free?

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

### Do CPNN or Interstaff have ads?

Neither CPNN nor Interstaff shows ads.

### Which is updated more often, CPNN or Interstaff?

CPNN ships an update every 2 weeks, and Interstaff every 3 weeks. Most recently, CPNN was updated on October 5, 2026 and Interstaff on October 2, 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.*