# CIAS vs ABS Install

The clearest difference is iOS requirement: ABS Install at 13.0 against CIAS's 15. 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.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on September 8, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | CIAS | ABS Install |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Size | 68 MB | 34 MB |
| Requires iOS | 15 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cias Elettronica Srl](https://appshunter.io/developer/1179992646) | [Johnson Controls Products Italia Srl](https://appshunter.io/developer/1129851458) |

## What reviewers say

### CIAS

[App page](https://appshunter.io/ios/app/cias/id1612665779)

**Features:** Vision Pro support

**In-app purchases:** none


### ABS Install

[App page](https://appshunter.io/ios/app/abs-install/id6743710267)

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

**In-app purchases:** none


## Frequently asked questions

### Is CIAS free?

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

### Is ABS Install free?

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

### Do CIAS or ABS Install have ads?

Neither CIAS nor ABS Install shows ads.

### Which is updated more often, CIAS or ABS Install?

CIAS ships an update every 5 weeks, and ABS Install every 5 weeks. Most recently, CIAS was updated on September 8, 2026 and ABS Install on August 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*