# 100 Grid Challenge vs Einstein

The clearest difference is review sentiment: 100 Grid Challenge at 100% against Einstein's 0%. Einstein's advantage is iOS requirement (12.0 vs 15.3). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 100 Grid Challenge | Einstein |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.5 (2 ratings)](https://appshunter.io/ios/app/einstein-the-riddle/id6748315029/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | — |
| Monetization | Ad-supported | Ad-supported |
| Size | 12 MB | 33 MB |
| Requires iOS | 15.3 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [matteo poggesi](https://appshunter.io/developer/1764311112) | [Davide Sardei](https://appshunter.io/developer/668430430) |

## What reviewers say

### 100 Grid Challenge

[App page](https://appshunter.io/ios/app/100-grid-challenge/id6670337983)

This is a strategic block puzzle game where players navigate a 10x10 grid to reach a score of 100. It combines elements of number matching and grid movement, offering a unique brain-training experience for all ages.

**Highlights:** 10x10 grid navigation, Reach a score of 100, Strategic move planning, Global leaderboards, Brain-training puzzles, Intuitive design, Endless replayability

**Features:** macOS Compatibility

**In-app purchases:** none


### Einstein

[App page](https://appshunter.io/ios/app/einstein-the-riddle/id6748315029)

This logic puzzle game challenges players to solve complex riddles using deduction and critical thinking. Inspired by a classic brain teaser, it offers increasingly difficult levels with a clean interface and no time limits.

**Highlights:** Logic grid puzzles, Deductive reasoning, Classic riddle mechanics, Clean interface, No time limits

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

**In-app purchases:** none


## Frequently asked questions

### Is 100 Grid Challenge free?

100 Grid Challenge is free to download, with no in-app purchases.

### Is Einstein free?

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

### Do 100 Grid Challenge or Einstein have ads?

Both 100 Grid Challenge and Einstein show ads.

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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.*