# ABB System Connect vs UnitBastion

The clearest difference is update cadence: UnitBastion at every 3 weeks against ABB System Connect's every 6 months. UnitBastion also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, 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.

ABB System Connect ships an update every 6 months, UnitBastion every 3 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | ABB System Connect | UnitBastion |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Size | 141 MB | 33 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ABB Information Systems AG](https://appshunter.io/developer/1026885389) | [talrace](https://appshunter.io/developer/1504062325) |

## What reviewers say

### ABB System Connect

[App page](https://appshunter.io/ios/app/abb-system-connect/id1533230425)

**Features:** Vision Pro support

**In-app purchases:** none


### UnitBastion

[App page](https://appshunter.io/ios/app/unitbastion/id6448989680)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ABB System Connect free?

ABB System Connect is free to download, with no in-app purchases.

### Is UnitBastion free?

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

### Do ABB System Connect or UnitBastion have ads?

Neither ABB System Connect nor UnitBastion shows ads.

### Which is updated more often, ABB System Connect or UnitBastion?

ABB System Connect ships an update every 6 months, and UnitBastion every 3 weeks. Most recently, ABB System Connect was updated on November 7, 2026 and UnitBastion on November 3, 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.*