# Rubik Solver vs Doupin

The clearest difference is update cadence: Doupin at every 2 days against Rubik Solver's every 3 months. Rubik Solver's advantage is iOS requirement (13.0 vs 16.6). On price, ads, 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.

Rubik Solver ships an update every 3 months, Doupin every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Rubik Solver | Doupin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/rubik-solver/id6756696559/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 29 MB | 81 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [1576136 B.C. Ltd.](https://appshunter.io/developer/6784537580) | [Shenzhen monokaro Technology CO., LTD](https://appshunter.io/developer/1894804963) |

## What reviewers say

### Rubik Solver

[App page](https://appshunter.io/ios/app/rubik-solver/id6756696559)

This app provides step-by-step solutions for solving 3x3 Rubik's cubes. It offers both 2D and 3D visualizations of the cube and allows for manual input or automatic solving.

**Highlights:** Step-by-step solutions, 3D cube visualization, 2D cube visualization, Manual cube input, Automatic solving algorithms

**Features:** macOS Compatibility

**In-app purchases:** none


### Doupin

[App page](https://appshunter.io/ios/app/doupin/id6803451898)

**In-app purchases:** none


## Frequently asked questions

### Is Rubik Solver free?

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

### Is Doupin free?

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

### Do Rubik Solver or Doupin have ads?

Neither Rubik Solver nor Doupin shows ads.

### Which is updated more often, Rubik Solver or Doupin?

Rubik Solver ships an update every 3 months, and Doupin every 2 days. Most recently, Rubik Solver was updated on October 30, 2026 and Doupin on October 31, 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.*