# Quadrivium vs Kolba

The clearest difference is price: Kolba at Free against Quadrivium's $0.99. Kolba also leads on update cadence (every 2 days vs every 2 months). Quadrivium's advantage is chart position (#196 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Kolba is free to download; Quadrivium costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Quadrivium ships an update every 2 months, Kolba every 2 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Quadrivium | Kolba |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Best chart rank | **#196** | — |
| Size | 4 MB | 43 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | +4 | 4+ |
| Developer | [Tobias Reithmeier](https://appshunter.io/developer/1882860698) | [Tarkan Cicek](https://appshunter.io/developer/6802950276) |

## What reviewers say

### Quadrivium

[App page](https://appshunter.io/ios/app/quadrivium-logic-squares/id6799608995)

**Currently charting:** #196 Top Paid · Board (US App Store)

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

**In-app purchases:** none


### Kolba

[App page](https://appshunter.io/ios/app/kolba/id6815618462)

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

**In-app purchases:** none


## Frequently asked questions

### Is Quadrivium free?

Quadrivium costs $0.99, with no in-app purchases.

### Is Kolba free?

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

### Do Quadrivium or Kolba have ads?

Neither Quadrivium nor Kolba shows ads.

### Which is updated more often, Quadrivium or Kolba?

Quadrivium ships an update every 2 months, and Kolba every 2 days. Most recently, Quadrivium was updated on October 24, 2026 and Kolba on October 24, 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.*