# Pi 100 Challenge vs Machine Yearning

The clearest difference is price: Machine Yearning at Free against Pi 100 Challenge's $0.99. Machine Yearning also leads on iOS requirement (12.0 vs 17.0). Pi 100 Challenge's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Machine Yearning is free to download; Pi 100 Challenge costs $0.99 up front. Machine Yearning sells 1 one-off in-app purchase. Pi 100 Challenge asks for nothing beyond the download.

## The numbers

| Metric | Pi 100 Challenge | Machine Yearning |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.8 (57 ratings)](https://appshunter.io/ios/app/machine-yearning/id6476464472/reviews)** |
| Number of ratings | — | **57** |
| Positive reviews | — | 89.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | — | Free with in-app purchases |
| Size | 11 MB | 166 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ram Rao](https://appshunter.io/developer/1724828937) | [Tiny Little Keys Inc.](https://appshunter.io/developer/1726825490) |

## What reviewers say

### Pi 100 Challenge

[App page](https://appshunter.io/ios/app/pi-100-challenge/id6475694538)

**In-app purchases:** none


### Machine Yearning

[App page](https://appshunter.io/ios/app/machine-yearning/id6476464472)

Create your own language and test your memory in this unique word game. Solve puzzles by inventing definitions and recalling them to prove your authenticity. Features retro pixel art, multiple game modes, and unlockable content.

**Highlights:** Create custom languages, Memory recall challenges, Campaign, Timed, and Endless modes, Retro pixel art style, Unlockable hats and themes, Cognitive skill enhancement

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Hats | $1.99 | one-time |

**What reviewers like**

- 💡 Enjoyable and quick game
- 👍 Easy to understand
- 👍 Super cool art style and gameplay
- 🚀 No ads
- 👍 Challenging and fun

**What reviewers complain about**

- 🐛 Can't turn off haptics


## Frequently asked questions

### Is Pi 100 Challenge free?

Pi 100 Challenge costs $0.99, with no in-app purchases.

### Is Machine Yearning free?

Machine Yearning is free to download, with in-app purchases available.

### Do Pi 100 Challenge or Machine Yearning have ads?

Neither Pi 100 Challenge nor Machine Yearning shows 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.*