# РОЛТЭК.Расчет vs DoorHan Smart

The clearest difference is update cadence: РОЛТЭК.Расчет at every 3 weeks against DoorHan Smart's every 4 months. DoorHan Smart's advantage is iOS requirement (7.1 vs 13.0). 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.

РОЛТЭК.Расчет ships an update every 3 weeks, DoorHan Smart every 4 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | РОЛТЭК.Расчет | DoorHan Smart |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 21.1% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | — | Free |
| Size | 20 MB | 33 MB |
| Requires iOS | 13.0 | **7.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ROLTEK, OOO](https://appshunter.io/developer/865019960) | [DoorHan LLC](https://appshunter.io/developer/814922533) |

## What reviewers say

### РОЛТЭК.Расчет

[App page](https://appshunter.io/ios/app/id865019954)

**Features:** macOS Compatibility

**In-app purchases:** none


### DoorHan Smart

[App page](https://appshunter.io/ios/app/doorhan-smart/id947780686)

Control DoorHan automation systems remotely via Wi-Fi. Requires a SmartControl-2 unit to connect your smartphone to the automation drive.

**Highlights:** Remote automation control, Wi-Fi connectivity, Smartphone integration, SmartControl-2 compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is РОЛТЭК.Расчет free?

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

### Is DoorHan Smart free?

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

### Which is updated more often, РОЛТЭК.Расчет or DoorHan Smart?

РОЛТЭК.Расчет ships an update every 3 weeks, and DoorHan Smart every 4 months. Most recently, РОЛТЭК.Расчет was updated on November 1, 2026 and DoorHan Smart on November 1, 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.*