# Домофон Сигмарт vs Открытый Город

The clearest difference is update cadence: Домофон Сигмарт at every 2 months against Открытый Город's every 9 months. 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.

Домофон Сигмарт ships an update every 2 months, Открытый Город every 9 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Домофон Сигмарт | Открытый Город |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 6.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | Free | — |
| Size | 15 MB | 30 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [METAKOM OOO](https://appshunter.io/developer/1512698595) | [BILLING ONLAIN RESHENIYA](https://appshunter.io/developer/1580720825) |

## What reviewers say

### Домофон Сигмарт

[App page](https://appshunter.io/ios/app/id1512698596)

Manage your smart intercom system from your smartphone. Receive calls, unlock doors, view security cameras, and get important updates from your management company and emergency services.

**Highlights:** Receive intercom calls, Unlock doors remotely, View building and personal cameras, Get news and alerts, Participate in surveys

**In-app purchases:** none


### Открытый Город

[App page](https://appshunter.io/ios/app/id6444889044)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Домофон Сигмарт free?

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

### Is Открытый Город free?

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

### Do Домофон Сигмарт or Открытый Город have ads?

Neither Домофон Сигмарт nor Открытый Город shows ads.

### Which is updated more often, Домофон Сигмарт or Открытый Город?

Домофон Сигмарт ships an update every 2 months, and Открытый Город every 9 months. Most recently, Домофон Сигмарт was updated on October 14, 2026 and Открытый Город on October 8, 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.*