# ОКО vs Simol

The clearest difference is update cadence: Simol at every 4 days against ОКО's every 4 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.

ОКО ships an update every 4 months, Simol every 4 days. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ОКО | Simol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simol/id6772231067/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 60 MB | 54 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [ORG DIKIDI](https://appshunter.io/developer/1057010744) | [Pakhrudin Omarov](https://appshunter.io/developer/1059862204) |

## What reviewers say

### ОКО

[App page](https://appshunter.io/ios/app/id6748225698)

**Features:** macOS Compatibility

**In-app purchases:** none


### Simol

[App page](https://appshunter.io/ios/app/simol/id6772231067)

A secure messaging app for communicating with loved ones, friends, and colleagues. It allows sending messages, photos, videos, voice notes, files, and location, as well as making voice and video calls. Users can also post statuses and manage their profile visibility for enhanced privacy.

**Highlights:** End-to-end encrypted chats, Voice and video calls, Rich media sharing (photos, videos, files), Status updates with visibility controls, Profile privacy management, Device management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ОКО free?

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

### Is Simol free?

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

### Do ОКО or Simol have ads?

Neither ОКО nor Simol shows ads.

### Which is updated more often, ОКО or Simol?

ОКО ships an update every 4 months, and Simol every 4 days. Most recently, ОКО was updated on October 9, 2026 and Simol on October 1, 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.*