# KADROX vs Updo

The clearest difference is in-app purchases: Updo at none against KADROX's 3. KADROX's advantage is update cadence (every 2 days vs weekly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. KADROX sells 3 in-app purchases, starting at $3.99 per month. Updo asks for nothing beyond the download.

KADROX ships an update every 2 days, Updo weekly. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | KADROX | Updo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Size | 116 MB | 67 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Yusuf furkan Taskın](https://appshunter.io/developer/1826274402) | [YASIN ATAKAN ORTAC](https://appshunter.io/developer/1884143832) |

## What reviewers say

### KADROX

[App page](https://appshunter.io/ios/app/kadrox/id6760887176)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mounthly Premium | $3.99 | per month |
| 6 Months Premium Subscription | $19.99 | per 6 months |
| Yıllık Premium Abonelik | $34.99 | per year |


### Updo

[App page](https://appshunter.io/ios/app/updo-focus-and-study/id6761265170)

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

**In-app purchases:** none


## Frequently asked questions

### Is KADROX free?

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

### Is Updo free?

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

### Do KADROX or Updo have ads?

Neither KADROX nor Updo shows ads.

### Which is updated more often, KADROX or Updo?

KADROX ships an update every 2 days, and Updo weekly. Most recently, KADROX was updated on October 12, 2026 and Updo on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*