# Катехизис vs Оптина пустынь

The clearest difference is update cadence: Оптина пустынь at every 4 days against Катехизис's every 5 weeks. Оптина пустынь also leads on iOS requirement (13.0 vs 15.0). 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.

Катехизис ships an update every 5 weeks, Оптина пустынь every 4 days. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Катехизис | Оптина пустынь |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Size | 142 MB | 133 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [POZNANIE, ANO](https://appshunter.io/developer/1591838235) | [Sergey Korobov](https://appshunter.io/developer/1704178572) |

## What reviewers say

### Катехизис

[App page](https://appshunter.io/ios/app/id1591838233)

**Features:** macOS Compatibility

**In-app purchases:** none


### Оптина пустынь

[App page](https://appshunter.io/ios/app/id6463244257)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Катехизис free?

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

### Is Оптина пустынь free?

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

### Do Катехизис or Оптина пустынь have ads?

Neither Катехизис nor Оптина пустынь shows ads.

### Which is updated more often, Катехизис or Оптина пустынь?

Катехизис ships an update every 5 weeks, and Оптина пустынь every 4 days. Most recently, Катехизис was updated on October 25, 2026 and Оптина пустынь on October 19, 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.*