# smartHMI vs The Addition GR

The clearest difference is ads: smartHMI at none against The Addition GR's shown. smartHMI also leads on iOS requirement (12.0 vs 15.0). The Addition GR's advantage is update cadence (monthly vs every 7 months). On price, 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.

smartHMI ships an update every 7 months, The Addition GR monthly. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | smartHMI | The Addition GR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Monthly** |
| Size | 115 MB | 44 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [The Addition GR, LLC](https://appshunter.io/developer/1746815160) |

## What reviewers say

### smartHMI

[App page](https://appshunter.io/ios/app/smarthmi/id6448357450)

**In-app purchases:** none


### The Addition GR

[App page](https://appshunter.io/ios/app/the-addition-gr/id6502792849)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is smartHMI free?

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

### Is The Addition GR free?

The Addition GR is free to download, with no in-app purchases.

### Do smartHMI or The Addition GR have ads?

The Addition GR shows ads; smartHMI does not.

### Which is updated more often, smartHMI or The Addition GR?

smartHMI ships an update every 7 months, and The Addition GR monthly. Most recently, smartHMI was updated on October 11, 2026 and The Addition GR on October 9, 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.*