# White Nightmare vs Pi Answer Game

The clearest difference is in-app purchases: White Nightmare at none against Pi Answer Game's 1. Pi Answer Game's advantage is update cadence (weekly vs every 16 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Pi Answer Game sells 1 one-off in-app purchase. White Nightmare asks for nothing beyond the download.

White Nightmare ships an update every 16 months, Pi Answer Game weekly. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | White Nightmare | Pi Answer Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pi-answer-game-digits-game/id1665926116/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 16 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 90 MB | 37 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Tsang](https://appshunter.io/developer/416987065) | [Hokushi Hara](https://appshunter.io/developer/1501828113) |

## What reviewers say

### White Nightmare

[App page](https://appshunter.io/ios/app/white-nightmare/id1625222921)

**Features:** Vision Pro support

**In-app purchases:** none


### Pi Answer Game

[App page](https://appshunter.io/ios/app/pi-answer-game-digits-game/id1665926116)

Test your memory of pi digits with this engaging game. Choose from timed or untimed modes, practice specific digit sequences, and compete globally to become a pi master. Fill in missing digits to train your recall.

**Highlights:** No time limit mode, 30-second time limit mode, Practice mode with specific digit jumps, Global player competition, Fill-in-the-gap answering, Dark mode support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $4.99 | one-time |


## Frequently asked questions

### Is White Nightmare free?

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

### Is Pi Answer Game free?

Pi Answer Game is free to download, with in-app purchases available.

### Do White Nightmare or Pi Answer Game have ads?

Both White Nightmare and Pi Answer Game show ads.

### Which is updated more often, White Nightmare or Pi Answer Game?

White Nightmare ships an update every 16 months, and Pi Answer Game weekly. Most recently, White Nightmare was updated on November 7, 2026 and Pi Answer Game on November 12, 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.*