# OKU KG vs Evogis

The clearest difference is in-app purchases: OKU KG at none against Evogis's 2. OKU KG also leads on update cadence (every 3 days vs every 10 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Evogis sells 2 one-off in-app purchases. OKU KG asks for nothing beyond the download.

OKU KG ships an update every 3 days, Evogis every 10 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OKU KG | Evogis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 10 days |
| Size | 46 MB | 68 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Chyngyz Malikov](https://appshunter.io/developer/1667146773) | [Nurmukhamed Myktybek uulu](https://appshunter.io/developer/1599472646) |

## What reviewers say

### OKU KG

[App page](https://appshunter.io/ios/app/oku-kg/id1669736905)

**In-app purchases:** none


### Evogis

[App page](https://appshunter.io/ios/app/evogis/id6739829334)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Доступ к ОРТ экзамена навсегда | $19.99 | one-time |
| Lifetime access to the course | $79.99 | one-time |


## Frequently asked questions

### Is OKU KG free?

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

### Is Evogis free?

Evogis is free to download, with in-app purchases available.

### Do OKU KG or Evogis have ads?

Neither OKU KG nor Evogis shows ads.

### Which is updated more often, OKU KG or Evogis?

OKU KG ships an update every 3 days, and Evogis every 10 days. Most recently, OKU KG was updated on October 27, 2026 and Evogis on October 25, 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.*