# Rubber Clock vs Dzvin

The clearest difference is in-app purchases: Dzvin at none against Rubber Clock's 3. Dzvin also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.4). On price, update cadence and ads there is nothing between them.

Both are free to download. Rubber Clock sells 3 one-off in-app purchases. Dzvin asks for nothing beyond the download.

Rubber Clock ships an update every 5 days, Dzvin weekly. The most recent releases landed on September 25, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Rubber Clock | Dzvin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Size | 111 MB | 67 MB |
| Requires iOS | 18.4 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [传河 张](https://appshunter.io/developer/1789789418) | [Vadym Kovalsky](https://appshunter.io/developer/6787970754) |

## What reviewers say

### Rubber Clock

[App page](https://appshunter.io/ios/app/rubber-clock/id6763499552)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Eraser Pack | $0.99 | one-time |
| Medium Eraser Pack | $1.99 | one-time |
| Large Eraser Pack | $2.99 | one-time |


### Dzvin

[App page](https://appshunter.io/ios/app/dzvin-morphing-clock/id6789932562)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rubber Clock free?

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

### Is Dzvin free?

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

### Do Rubber Clock or Dzvin have ads?

Neither Rubber Clock nor Dzvin shows ads.

### Which is updated more often, Rubber Clock or Dzvin?

Rubber Clock ships an update every 5 days, and Dzvin weekly. Most recently, Rubber Clock was updated on September 25, 2026 and Dzvin on September 9, 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.*