# Единый Город vs Optima Kassa

The clearest difference is iOS requirement: Единый Город at 9.0 against Optima Kassa's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Единый Город ships an update every 9 months, Optima Kassa every 10 months. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Единый Город | Optima Kassa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 10 months |
| Size | 54 MB | 235 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [EDINY GOROD, OOO](https://appshunter.io/developer/1453548135) | [Optima Bank OAO](https://appshunter.io/developer/1575934233) |

## What reviewers say

### Единый Город

[App page](https://appshunter.io/ios/app/id1453548136)

**Features:** macOS Compatibility

**In-app purchases:** none


### Optima Kassa

[App page](https://appshunter.io/ios/app/optima-kassa/id6738690244)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Единый Город free?

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

### Is Optima Kassa free?

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

### Do Единый Город or Optima Kassa have ads?

Neither Единый Город nor Optima Kassa shows ads.

### Which is updated more often, Единый Город or Optima Kassa?

Единый Город ships an update every 9 months, and Optima Kassa every 10 months. Most recently, Единый Город was updated on November 2, 2026 and Optima Kassa on October 27, 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.*