# Light and Shadow Logic Puzzles vs Memo 3D Kidz

The clearest difference is price: Light and Shadow Logic Puzzles at Free against Memo 3D Kidz's $1.99. Light and Shadow Logic Puzzles also leads on update cadence (fortnightly vs every 35 months) and iOS requirement (10.3 vs 15.6). Memo 3D Kidz's advantage is in-app purchases (none vs 10). On ads and device support there is nothing between them.

Light and Shadow Logic Puzzles is free to download; Memo 3D Kidz costs $1.99 up front. Light and Shadow Logic Puzzles sells 10 one-off in-app purchases. Memo 3D Kidz asks for nothing beyond the download.

Light and Shadow Logic Puzzles ships an update fortnightly, Memo 3D Kidz every 35 months. The most recent releases landed on November 2, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Light and Shadow Logic Puzzles | Memo 3D Kidz |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/light-and-shadow-logic-puzzles/id1353420587/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 35 months |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 69 MB |
| Requires iOS | **10.3** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christian Lueth](https://appshunter.io/developer/1041680819) | [Philippe Zay](https://appshunter.io/developer/1200498230) |

## What reviewers say

### Light and Shadow Logic Puzzles

[App page](https://appshunter.io/ios/app/light-and-shadow-logic-puzzles/id1353420587)

This logic puzzle game challenges you to shade cells in a grid. It offers multiple difficulty levels and themed puzzle packs, with adjustable layouts and language options. Enjoy a completely ad-free experience on various Apple devices.

**Highlights:** Binary determination grid puzzles, Multiple difficulty levels, Themed puzzle packs, Adjustable layouts and languages, Game Center support, Portrait and landscape modes, Pinch-to-zoom functionality

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| X00: Mega ProPack (60 puzzles) | $0.99 | one-time |
| A01: Greenhorn 1 (50 puzzles) | $0.99 | one-time |
| B01: Beginner 1 (50 puzzles) | $0.99 | one-time |
| C01: Advanced 1 (50 puzzles) | $0.99 | one-time |
| D01: Amateur 1 (50 puzzles) | $0.99 | one-time |
| E01: Professio. 1 (50 puzzles) | $0.99 | one-time |
| F01: Expert 1 (50 puzzles) | $0.99 | one-time |
| G01: Whiz 1 (50 puzzles) | $0.99 | one-time |
| H01: Grandmast. 1 (50 puzzles) | $0.99 | one-time |
| X01: Mega Pack 1 (400 puzzles) | $2.99 | one-time |


### Memo 3D Kidz

[App page](https://appshunter.io/ios/app/memo-3d-kidz/id1510327729)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Light and Shadow Logic Puzzles free?

Light and Shadow Logic Puzzles is free to download, with in-app purchases available.

### Is Memo 3D Kidz free?

Memo 3D Kidz costs $1.99, with no in-app purchases.

### Do Light and Shadow Logic Puzzles or Memo 3D Kidz have ads?

Neither Light and Shadow Logic Puzzles nor Memo 3D Kidz shows ads.

### Which is updated more often, Light and Shadow Logic Puzzles or Memo 3D Kidz?

Light and Shadow Logic Puzzles ships an update fortnightly, and Memo 3D Kidz every 35 months. Most recently, Light and Shadow Logic Puzzles was updated on November 2, 2026 and Memo 3D Kidz on October 29, 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.*