# Erwin vs Where Light Remembers

The clearest difference is price: Where Light Remembers at $0.99 against Erwin's $4.99. Where Light Remembers also leads on iOS requirement (17.0 vs 26.0). Erwin's advantage is update cadence (every 8 days vs every 2 weeks). On ads, in-app purchases and device support there is nothing between them.

Erwin costs $4.99 and Where Light Remembers $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Erwin ships an update every 8 days, Where Light Remembers every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Erwin | Where Light Remembers |
| --- | --- | --- |
| Price | $4.99 | **$0.99** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 weeks |
| Monetization | Paid | — |
| Size | 43 MB | 58 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | +4 | 4+ |
| Developer | [Tamas Bartal](https://appshunter.io/developer/896478676) | [Can Ozcan](https://appshunter.io/developer/6785204358) |

## What reviewers say

### 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


### Where Light Remembers

[App page](https://appshunter.io/ios/app/where-light-remembers/id6786620577)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Erwin free?

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

### Is Where Light Remembers free?

Where Light Remembers costs $0.99, with no in-app purchases.

### Do Erwin or Where Light Remembers have ads?

Neither Erwin nor Where Light Remembers shows ads.

### Which is updated more often, Erwin or Where Light Remembers?

Erwin ships an update every 8 days, and Where Light Remembers every 2 weeks. Most recently, Erwin was updated on October 31, 2026 and Where Light Remembers 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.*