# Word Fit Puzzle vs Einstein Challenge

The clearest difference is price: Word Fit Puzzle at Free against Einstein Challenge's $0.99. Word Fit Puzzle also leads on update cadence (every 5 months vs every 39 months) and iOS requirement (12.0 vs 17.0). Einstein Challenge's advantage is in-app purchases (none vs 1). On device support there is nothing between them.

Word Fit Puzzle is free to download; Einstein Challenge costs $0.99 up front. Word Fit Puzzle sells 1 in-app purchase, starting at $4.99 per year. Einstein Challenge asks for nothing beyond the download.

Word Fit Puzzle ships an update every 5 months, Einstein Challenge every 39 months. The most recent releases landed on October 22, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Word Fit Puzzle | Einstein Challenge |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.7 (3.7K ratings)](https://appshunter.io/ios/app/word-fit-puzzle/id678430811/reviews)** | — |
| Number of ratings | **3.7K** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | — |
| Update frequency | **Every 5 months** | Every 39 months |
| Monetization | Free with in-app purchases | — |
| Size | 92 MB | 9 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 12+ |
| Developer | [Havos](https://appshunter.io/developer/309789068) | [Joao Silva](https://appshunter.io/developer/1293675690) |

## What reviewers say

### Word Fit Puzzle

[App page](https://appshunter.io/ios/app/word-fit-puzzle/id678430811)

Fit words into a grid by finding their correct positions from a given list. Customize grid size, difficulty, word length, and starting letters. Supports 36 languages with definitions for language learning.

**Highlights:** Unlimited puzzles, Multiple difficulty options, Customizable grid size, Adjustable word length, 36 language support, View word definitions, High score tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supporter (no ads) | $4.99 | per year |

**What reviewers like**

- 🚀 Keeps me motivated
- 👍 Great for the mind
- 👍 Challenging but not frustrating
- 👍 Customizable difficulty levels
- 👍 Fun and relaxing

**What reviewers complain about**

- 🐛 Very confusing
- 🐛 Occasional crashes
- 🐛 Ads are loud and disruptive
- 🐛 Unreliable touch screen response
- 🐛 Redirects to suspicious websites

**Reported bugs**

- Difficulty levels not working as expected
- Inability to change from words to pictures
- Randomly opens browser to suspicious sites

**Requested features**

- Allow inputting multiple letters
- Include number fill-in puzzles
- Provide more word and theme options
- Improve ad placement and control
- Fix compatibility issues with older devices


### Einstein Challenge

[App page](https://appshunter.io/ios/app/einstein-challenge/id1293675691)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Word Fit Puzzle free?

Word Fit Puzzle is free to download, with in-app purchases available.

### Is Einstein Challenge free?

Einstein Challenge costs $0.99, with no in-app purchases.

### Which is updated more often, Word Fit Puzzle or Einstein Challenge?

Word Fit Puzzle ships an update every 5 months, and Einstein Challenge every 39 months. Most recently, Word Fit Puzzle was updated on October 22, 2026 and Einstein Challenge on May 16, 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.*