# Shift The Disks vs Erwin

The clearest difference is update cadence: Shift The Disks at every 4 days against Erwin's every 8 days. Shift The Disks also leads on price ($2.99 vs $4.99) and iOS requirement (16.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Shift The Disks costs $2.99 and Erwin $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Shift The Disks ships an update every 4 days, Erwin every 8 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Shift The Disks | Erwin |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 8 days |
| Monetization | — | Paid |
| Size | 2 MB | 43 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [MOHAMMED ALOUFI](https://appshunter.io/developer/1771295645) | [Tamas Bartal](https://appshunter.io/developer/896478676) |

## What reviewers say

### Shift The Disks

[App page](https://appshunter.io/ios/app/shift-the-disks/id6746863384)

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

**In-app purchases:** none


### Erwin

[App page](https://appshunter.io/ios/app/erwin-a-quantum-puzzle/id6761667185)

Experience a unique 3D sliding puzzle on a cube's six faces. Merge tiles, rotate the cube, and discover quantum effects like superposition and entanglement. Play with friends in multiplayer mode.

**Highlights:** 3D cube sliding puzzle, Tile merging and scoring, Quantum effects (superposition, entanglement), Cube rotation for multiple faces, Local multiplayer via Game Center, Universal app purchase

**Features:** Game Controller support, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Shift The Disks free?

Shift The Disks costs $2.99, with no in-app purchases.

### Is Erwin free?

Erwin costs $4.99, with no in-app purchases.

### Do Shift The Disks or Erwin have ads?

Neither Shift The Disks nor Erwin shows ads.

### Which is updated more often, Shift The Disks or Erwin?

Shift The Disks ships an update every 4 days, and Erwin every 8 days. Most recently, Shift The Disks was updated on October 24, 2026 and Erwin 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.*