# 3n or Not — Is it multiple of 3?

> A quick game to determine if numbers are multiples of three. (iPhone/iPad app by Ninicode.)

- Source: https://appshunter.io/ios/app/3n-or-not/id913003589 (this page in markdown: same URL + `.md`)
- Developer: [Ninicode](https://appshunter.io/developer/647989501)
- Category: Education, Games, Family, Puzzle
- Price: Free
- Rating: 5.00/5 from 3 App Store ratings · 43 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 13 MB
- Languages: American English, Japanese
- Released: 2014-09-08
- Data updated: 2026-08-19
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/3n-or-not/id913003589/reviews.md

## What is 3n or Not?

3n or Not is a game to quickly discrimination whether that number is a multiple of 3 or not.

## Key features

- Quick number discrimination
- Multiple of 3 identification
- Mental math practice
- Educational game

## Recent user reviews (10 of 43)

All indexed reviews: https://appshunter.io/ios/app/3n-or-not/id913003589/reviews.md

### 5/5 — バラがバラバラ

*2026-07-29*

数字遊びゲーム他にも欲しいです

### 5/5 — 得した

*2026-04-08*

3の倍数がどうすればわかるのかおしえてくれた神アプリです

### 5/5 — 素晴らしい

*2026-01-26*

ここまでの神ゲーを見たことがない

### 5/5 — おもろ

*2025-05-03*

三の倍数と3が付く数字のアプリを長年愛用してきたが、ついに終わりを迎えてしまい代わりになる暇つぶしアプリを探していたところ出会いました
前やっていたものより随分難しいですがたのしいです

### 5/5 — Androidでもプレイしたい！！

*2025-04-15*

とても良いゲームなのでAndroidでもプレイできたら嬉しいです。

### 5/5 — SAIKOUDESU

*2025-03-09*

Me cha Tanoshiidesu
메차타노시이테스!

### 5/5 — 頭良くなってる

*2024-12-26, version 3.0.9*

数字を012に置き換えるのまだ慣れないから、いつかはランキング上位に入りたい。

### 5/5 — happy

*2024-09-08*

happy happy

### 5/5 — シンプル

*2024-06-28*

シンプルだけど奥が深い 制限時間なしの練習モードとかあるといいかも

### 5/5 — あ

*2024-05-11, version 3.0.7*

おもろい

## Frequently asked questions about 3n or Not

### What is 3n or Not?

3n or Not is an educational game designed to help players quickly determine if a given number is a multiple of three. It's a fun way to practice mental math.

### Is 3n or Not free to download?

Yes, 3n or Not is available for free download on iOS devices. It is supported by advertisements.

### What devices does 3n or Not support?

3n or Not is compatible with iPhone, iPad, and iPod devices. It requires iOS.

### What is the age rating for 3n or Not?

The app has an age rating of 4+, making it suitable for young learners and anyone looking to practice basic number skills.

### How often is 3n or Not updated?

The app was last updated on July 29, 2024, indicating active development and maintenance by the developer, Ninicode Inc.

### Does 3n or Not have ads?

Yes, 3n or Not contains advertisements. It is a free application supported by these ads.

### What is the learning methodology of 3n or Not?

The app employs a rapid response learning methodology. Players must quickly discriminate numbers, reinforcing quick calculation and pattern recognition for divisibility by three.

### How does 3n or Not track progress?

While the description doesn't detail specific progress tracking features, the game's core mechanic of rapid identification implies that users can gauge their improvement by their speed and accuracy over time.

## Version history (last 5 releases)

### 3.0.9 — 2024-07-29

Regular improvements to keep the app working properly.

### 3.0.8 — 2024-07-17

Regular improvements to keep the app working properly.

### 3.0.7 — 2024-04-09

Regular improvements to keep the app working properly.

### 3.0.6 — 2023-10-29

Regular improvements to keep the app working properly.

### 3.0.5 — 2023-03-28

Regular improvements to keep the app working properly.

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## More apps by Ninicode

- [Catch the Soft Serve](https://appshunter.io/ios/app/catch-the-soft-serve/id500544338)
- [Ninimaths](https://appshunter.io/ios/app/ninimaths/id647989498)
- [Ninihex](https://appshunter.io/ios/app/ninihex/id665700343)
- [Dicerase](https://appshunter.io/ios/app/dicerase/id861101891)
- [Cracky Hatchery](https://appshunter.io/ios/app/cracky-hatchery/id942306415)

All apps by Ninicode: https://appshunter.io/developer/647989501

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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 2026-08-19.*