# ACI DSIM vs sem Mongol

The clearest difference is update cadence: sem Mongol at every 2 days against ACI DSIM's every 3 weeks. ACI DSIM's advantage is iOS requirement (11.0 vs 13.0). 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, sem Mongol every 2 days. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ACI DSIM | sem Mongol |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 59 MB | 34 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ACI Communications, Inc](https://appshunter.io/developer/1141246666) | [Logistic](https://appshunter.io/developer/1552157482) |

## What reviewers say

### ACI DSIM

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

**Features:** macOS Compatibility

**In-app purchases:** none


### sem Mongol

[App page](https://appshunter.io/ios/app/sem-mongol/id6478454260)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ACI DSIM free?

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

### Is sem Mongol free?

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

### Do ACI DSIM or sem Mongol have ads?

Neither ACI DSIM nor sem Mongol shows ads.

### Which is updated more often, ACI DSIM or sem Mongol?

ACI DSIM ships an update every 3 weeks, and sem Mongol every 2 days. Most recently, ACI DSIM was updated on October 5, 2026 and sem Mongol on October 10, 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.*