# smartHMI vs TANGRAM IoT 3.0

The clearest difference is update cadence: TANGRAM IoT 3.0 at every 3 weeks against smartHMI's every 7 months. smartHMI's advantage is iOS requirement (12.0 vs 15.6). 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.

smartHMI ships an update every 7 months, TANGRAM IoT 3.0 every 3 weeks. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | smartHMI | TANGRAM IoT 3.0 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Size | 115 MB | 56 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [TANGRAM Company Limited.](https://appshunter.io/developer/1480182974) |

## What reviewers say

### smartHMI

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

**In-app purchases:** none


### TANGRAM IoT 3.0

[App page](https://appshunter.io/ios/app/tangram-iot-30/id6680157666)

**In-app purchases:** none


## Frequently asked questions

### Is smartHMI free?

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

### Is TANGRAM IoT 3.0 free?

TANGRAM IoT 3.0 is free to download, with no in-app purchases.

### Do smartHMI or TANGRAM IoT 3.0 have ads?

Neither smartHMI nor TANGRAM IoT 3.0 shows ads.

### Which is updated more often, smartHMI or TANGRAM IoT 3.0?

smartHMI ships an update every 7 months, and TANGRAM IoT 3.0 every 3 weeks. Most recently, smartHMI was updated on October 16, 2026 and TANGRAM IoT 3.0 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.*