# Prime Numberist

> Fast-paced game identifying prime numbers falling from the top. (iPhone/iPad app by Masato Niizeki.)

- Source: https://appshunter.io/ios/app/prime-numberist/id1555469310 (this page in markdown: same URL + `.md`)
- Developer: [Masato Niizeki](https://appshunter.io/developer/1486150226)
- Category: Games, Casual
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 12.0 · 123 MB
- Languages: Japanese
- Released: 2021-04-18
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/prime-numberist/id1555469310/reviews.md

## What is Prime Numberist?

All modes that can be played in normal mode are free to play!!

PrimeNumberist is a simple game that keeps guessing whether the numbers falling from the top are prime numbers or prime numbers.
Tap the left side of the screen if it is a prime number, or the right side of the screen if it is not a prime number.
Answer correctly before reaching the lower line, continue combo and aim for a high score.

・ To use prime numbers in prime factorization
・ To count prime numbers when cornered
・ In your spare time

Would you like to aim for the top of the high score ranking?

## Key features

- Identify prime numbers
- Fast-paced gameplay
- High score ranking
- Combo system
- Practice prime factorization

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 10 Expert mode tickets | $0.99 | one-time |
| 55 Expert mode tickets | $0.99 | one-time |
| Unlock expert mode and off AD | $1.99 | one-time |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/prime-numberist/id1555469310/reviews.md

### 5/5 — 絶望要塞

*2023-09-17, version 1.0.2*

の練習に使わせていただいてます。おかげでステージクリアできました！ありがとうございます。

### 4/5 — 面白いが､､､

*2022-07-05, version 1.0.2*

ゲーム性はシンプルで面白いが、エキスパート高杉🥺

### 5/5 — これ、いいね！

*2021-06-21, version 1.0.1*

色んな素数ゲームプレイしてきたけど、これいいじゃん！

## Frequently asked questions about Prime Numberist

### What is Prime Numberist?

Prime Numberist is a free-to-play game where players must quickly distinguish between prime and non-prime numbers as they fall from the top of the screen. It's designed for quick, engaging gameplay.

### How do you play Prime Numberist?

You tap the left side of the screen if a falling number is prime, and the right side if it is not. The goal is to answer correctly before the numbers reach the bottom line to maintain combos and achieve a high score.

### Does Prime Numberist have ads?

Yes, Prime Numberist contains advertisements. It is a free game supported by ads, with optional in-app purchases available.

### What devices can I play Prime Numberist on?

Prime Numberist is available on iPhone, iPad, and iPod devices. It is designed for iOS users.

### Is Prime Numberist suitable for children?

Yes, Prime Numberist has an age rating of 4+, making it suitable for younger players. It offers a fun way to learn about prime numbers.

### Can I practice prime factorization with Prime Numberist?

While the primary gameplay focuses on identifying prime numbers, the game's mechanics can help reinforce the concept of prime numbers, which is foundational for prime factorization.

### How often is Prime Numberist updated?

The latest version of Prime Numberist is 1.0.2, and it was last updated on July 11, 2021. Updates typically focus on bug fixes and minor improvements.

### What are the in-app purchases in Prime Numberist?

The description mentions in-app purchases are available, though specific details about what they offer are not provided. These often relate to removing ads or providing in-game advantages.

## Version history (last 3 releases)

### 1.0.2 — 2021-07-11

Fixed can't change user name on iPad.

### 1.0.1 — 2021-06-13

Changed the game rules so that the game over with 3 mistakes.
Modified so that the score is displayed.

### 1.0 — 2021-04-18

No release notes.

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## More apps by Masato Niizeki

- [フェレットといっしょ](https://appshunter.io/ios/app/id1486150227)
- [Ferret Explorer](https://appshunter.io/ios/app/ferret-explorer/id1630928257)

All apps by Masato Niizeki: https://appshunter.io/developer/1486150226

## Related topics

[ficha prime](https://appshunter.io/ios/topics/ficha-prime)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*