# ZERNA | Москва vs Camera Obscura | Москва

ZERNA | Москва and Camera Obscura | Москва are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

ZERNA | Москва ships an update every 7 months, Camera Obscura | Москва every 6 months. Both last shipped on November 12, 2026.

## The numbers

| Metric | ZERNA | Москва | Camera Obscura | Москва |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 months** |
| Size | 78 MB | 79 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Chernov](https://appshunter.io/developer/1553254544) | [Sergei Stroganov](https://appshunter.io/developer/1605785902) |

## What reviewers say

### ZERNA | Москва

[App page](https://appshunter.io/ios/app/zerna/id6443391227)

**Features:** macOS Compatibility

**In-app purchases:** none


### Camera Obscura | Москва

[App page](https://appshunter.io/ios/app/camera-obscura/id6738470048)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZERNA | Москва free?

ZERNA | Москва is free to download, with no in-app purchases.

### Is Camera Obscura | Москва free?

Camera Obscura | Москва is free to download, with no in-app purchases.

### Do ZERNA | Москва or Camera Obscura | Москва have ads?

Neither ZERNA | Москва nor Camera Obscura | Москва shows ads.

### Which is updated more often, ZERNA | Москва or Camera Obscura | Москва?

ZERNA | Москва ships an update every 7 months, and Camera Obscura | Москва every 6 months. Most recently, ZERNA | Москва was updated on November 12, 2026 and Camera Obscura | Москва on November 12, 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.*