# ACI DSIM vs VX

The clearest difference is update cadence: ACI DSIM at every 3 weeks against VX's every 2 months. ACI DSIM also leads on iOS requirement (11.0 vs 26.0). 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.

ACI DSIM ships an update every 3 weeks, VX every 2 months. The most recent releases landed on October 5, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ACI DSIM | VX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 59 MB | 26 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ACI Communications, Inc](https://appshunter.io/developer/1141246666) | [VeEX Inc](https://appshunter.io/developer/1586679948) |

## What reviewers say

### ACI DSIM

[App page](https://appshunter.io/ios/app/aci-dsim/id1550253698)

**Features:** macOS Compatibility

**In-app purchases:** none


### VX

[App page](https://appshunter.io/ios/app/vx-connect/id1617197341)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ACI DSIM free?

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

### Is VX free?

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

### Do ACI DSIM or VX have ads?

Neither ACI DSIM nor VX shows ads.

### Which is updated more often, ACI DSIM or VX?

ACI DSIM ships an update every 3 weeks, and VX every 2 months. Most recently, ACI DSIM was updated on October 5, 2026 and VX on October 24, 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.*