# Zudiro vs duk.

The clearest difference is update cadence: duk. at every 5 days against Zudiro's every 2 weeks. Zudiro's advantage is iOS requirement (13.4 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zudiro ships an update every 2 weeks, duk. every 5 days. The most recent releases landed on October 4, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Zudiro | duk. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/duk/id6778465982/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free | Free |
| Size | 19 MB | 8 MB |
| Requires iOS | **13.4** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Devanco](https://appshunter.io/developer/1568938055) | [Betula Noir LLC](https://appshunter.io/developer/6778465985) |

## What reviewers say

### Zudiro

[App page](https://appshunter.io/ios/app/zudiro/id6736738835)

This logic puzzle game challenges players to fill a grid using multiplicative constraints. It offers an intellectual challenge for fans of math-based puzzles and number sense. Conquer all the challenges and master the art of multiplication.

**Highlights:** Multiplicative logic puzzles, Grid-filling challenges, Number sense testing, Intellectual challenges, Math-based puzzles

**In-app purchases:** none


### duk.

[App page](https://appshunter.io/ios/app/duk/id6778465982)

A charming puzzle game where you guide a character across lily pads by stepping a specific number of spaces. Solve 80 unique ponds in classic mode or tackle a new daily challenge. Enjoy a relaxing, ad-free experience with no internet or accounts required.

**Highlights:** Numbered lily pad stepping mechanic, 80 classic ponds, Daily puzzles (easy, medium, hard), Streak tracking for daily play, No ads or accounts, Offline play

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

**In-app purchases:** none


## Frequently asked questions

### Is Zudiro free?

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

### Is duk. free?

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

### Do Zudiro or duk. have ads?

Neither Zudiro nor duk. shows ads.

### Which is updated more often, Zudiro or duk.?

Zudiro ships an update every 2 weeks, and duk. every 5 days. Most recently, Zudiro was updated on October 4, 2026 and duk. on September 30, 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.*