# Einstein Challenge vs Nonogram puzzle

The clearest difference is price: Nonogram puzzle at Free against Einstein Challenge's $0.99. Nonogram puzzle also leads on update cadence (every 5 weeks vs every 39 months) and iOS requirement (15.6 vs 17.0). Einstein Challenge's advantage is in-app purchases (none vs 26). On device support there is nothing between them.

Nonogram puzzle is free to download; Einstein Challenge costs $0.99 up front. Nonogram puzzle sells 26 one-off in-app purchases. Einstein Challenge asks for nothing beyond the download.

Einstein Challenge ships an update every 39 months, Nonogram puzzle every 5 weeks. The most recent releases landed on May 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Einstein Challenge | Nonogram puzzle |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.1 (41 ratings)](https://appshunter.io/ios/app/nonogram-puzzle-elf-island/id1591014486/reviews)** |
| Number of ratings | — | **41** |
| Positive reviews | — | 53.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | Every 39 months | **Every 5 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 146 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Joao Silva](https://appshunter.io/developer/1293675690) | [Yunbu](https://appshunter.io/developer/1468884052) |

## What reviewers say

### Einstein Challenge

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Nonogram puzzle

[App page](https://appshunter.io/ios/app/nonogram-puzzle-elf-island/id1591014486)

Build a magical fairy tale island by merging items and solving nonogram puzzles. Discover hidden pixel art, collect elves, and design your dream world. Enjoy a blend of logic puzzles and creative building.

**Highlights:** Merge items to build and design, Solve nonogram puzzles, Discover hidden pixel art, Collect elves and characters, Sandbox garden for customization, Multiple difficulty levels

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

**In-app purchases (26)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Gifts | $0.99 | one-time |
| 150 Gems | $1.99 | one-time |
| 1000 Coins | $1.99 | one-time |
| Coin Gifts | $1.99 | one-time |
| Gem Gifts | $1.99 | one-time |
| Item gifts | $1.99 | one-time |
| Small Tree | $2.99 | one-time |
| Small Stone House | $2.99 | one-time |
| Special Gift | $3.99 | one-time |
| Egg | $3.99 | one-time |
| Unlock Princess | $3.99 | one-time |
| 400 Gems | $4.99 | one-time |
| 2800 coins | $4.99 | one-time |
| 600 Gems | $4.99 | one-time |
| 3400 Coins | $4.99 | one-time |
| 60 Gifts | $4.99 | one-time |
| Pay coin Gift Pack 1 | $5.99 | one-time |
| Pay gem gift pack 1 | $5.99 | one-time |
| Pay Gem Gift Pack 4 | $5.99 | one-time |
| Pay Coin Gift Pack 3 | $5.99 | one-time |
| Blooming Tree | $7.99 | one-time |
| Large Stone House | $7.99 | one-time |
| 1000 Gems | $9.99 | one-time |
| 6800 coins | $9.99 | one-time |
| 15000 Coins | $19.99 | one-time |
| 2200 Gems | $19.99 | one-time |


## Frequently asked questions

### Is Einstein Challenge free?

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

### Is Nonogram puzzle free?

Nonogram puzzle is free to download, with in-app purchases available.

### Which is updated more often, Einstein Challenge or Nonogram puzzle?

Einstein Challenge ships an update every 39 months, and Nonogram puzzle every 5 weeks. Most recently, Einstein Challenge was updated on May 16, 2026 and Nonogram puzzle 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.*