# Sanatorium vs КлючОн

The clearest difference is update cadence: Sanatorium at monthly against КлючОн's every 5 months. Sanatorium also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, 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.

Sanatorium ships an update monthly, КлючОн every 5 months. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Sanatorium | КлючОн |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/sanatorium/id1156155326/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 86.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | Free | — |
| Size | 40 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [QUIRCO, OOO](https://appshunter.io/developer/1156155325) | [Aleksandr Mylnikov](https://appshunter.io/developer/1738630084) |

## What reviewers say

### Sanatorium

[App page](https://appshunter.io/ios/app/sanatorium/id1156155326)

This app provides patients with essential information about sanatorium services. It delivers notifications for medical procedures and schedule changes, and allows viewing of prescribed medications.

**Highlights:** View sanatorium services, Receive procedure notifications, Track schedule updates, Access prescription lists

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

**In-app purchases:** none


### КлючОн

[App page](https://appshunter.io/ios/app/id6744392012)

**In-app purchases:** none


## Frequently asked questions

### Is Sanatorium free?

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

### Is КлючОн free?

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

### Do Sanatorium or КлючОн have ads?

Neither Sanatorium nor КлючОн shows ads.

### Which is updated more often, Sanatorium or КлючОн?

Sanatorium ships an update monthly, and КлючОн every 5 months. Most recently, Sanatorium was updated on November 6, 2026 and КлючОн on November 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.*