# Kwartool vs Duizenden

The clearest difference is ads: Kwartool at none against Duizenden's shown. Kwartool also leads on iOS requirement (10.0 vs 15.1). Duizenden's advantage is update cadence (every 2 weeks vs every 24 months). On price, 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.

Kwartool ships an update every 24 months, Duizenden every 2 weeks. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Kwartool | Duizenden |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/duizenden/id1603980772/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 24 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 8 MB | 39 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Hulan bv](https://appshunter.io/developer/1030435545) | [Eveline van den Boom](https://appshunter.io/developer/1603980774) |

## What reviewers say

### Kwartool

[App page](https://appshunter.io/ios/app/kwartool/id1477949226)

**In-app purchases:** none


### Duizenden

[App page](https://appshunter.io/ios/app/duizenden/id1603980772)

A popular card game where players form sets of cards with the same suit or value. The goal is to be the first to reach 1000 points by strategically playing cards and avoiding penalties.

**Highlights:** Form sets of same suit or value, Use jokers as wildcards, Strategic card play, Score-based winning condition, Special card scoring (Queen of Spades)

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

**In-app purchases:** none


## Frequently asked questions

### Is Kwartool free?

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

### Is Duizenden free?

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

### Do Kwartool or Duizenden have ads?

Duizenden shows ads; Kwartool does not.

### Which is updated more often, Kwartool or Duizenden?

Kwartool ships an update every 24 months, and Duizenden every 2 weeks. Most recently, Kwartool was updated on October 6, 2026 and Duizenden on October 13, 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.*