# CBAS vs iPosOS 4

The clearest difference is update cadence: CBAS at every 6 weeks against iPosOS 4's every 6 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.

CBAS ships an update every 6 weeks, iPosOS 4 every 6 months. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | CBAS | iPosOS 4 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 6 months |
| Size | 38 MB | 119 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cadvil Solutions LLC](https://appshunter.io/developer/1257049601) | [NAPS](https://appshunter.io/developer/1386163333) |

## What reviewers say

### CBAS

[App page](https://appshunter.io/ios/app/cbas/id1445415339)

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

**In-app purchases:** none


### iPosOS 4

[App page](https://appshunter.io/ios/app/iposos-4/id1672278307)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CBAS free?

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

### Is iPosOS 4 free?

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

### Do CBAS or iPosOS 4 have ads?

Neither CBAS nor iPosOS 4 shows ads.

### Which is updated more often, CBAS or iPosOS 4?

CBAS ships an update every 6 weeks, and iPosOS 4 every 6 months. Most recently, CBAS was updated on October 7, 2026 and iPosOS 4 on September 28, 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.*