# Root Drop — Stack roots. Grow numbers.

> Stack roots. Grow numbers. (iPhone/iPad app by Naoki Chiba.)

- Source: https://appshunter.io/ios/app/root-drop/id6782461808 (this page in markdown: same URL + `.md`)
- Developer: [Naoki Chiba](https://appshunter.io/developer/1895372512)
- Category: Games, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 9 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-06-22
- Data updated: 2026-10-31

## What is Root Drop?

A fresh take on falling-block puzzles: every block that drops is a √ (square root).

Drop a √ onto another √ to multiply them. When an integer can be extracted, the result splits into an integer below and the remaining √ above. Matching integers connected horizontally or vertically merge into a power block. Two 3s make 3²; add another 3 to make 3³… Keep the chain going to grow bigger numbers.

FEATURES
• Simple rules built around √, with deep number strategy
• Your score is revealed at game over, with a breakdown of how many points each number earned
• Share your results with an image of the board
• A Collection of all the powers you’ve made
• Choose your difficulty (Easy / Normal / Hard) and controls in Settings
• Game Center leaderboards for each difficulty, plus achievements
• Light and dark themes
• Available in Japanese, English, Chinese (Simplified and Traditional), Korean, Spanish, French, and German

Discover the satisfaction of watching your numbers grow.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Is Root Drop safe?

Not enough ratings yet to assess Root Drop.

## Is Root Drop legit?

Root Drop appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Root Drop is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.3.1 — 2026-10-26

Added support for iPhone Duo.

### 1.3 — 2026-10-17

• Added a score breakdown at game over and the option to share results as an image
• Added a Collection of the powers you’ve made
• You can now pause during a game
• Added Simplified Chinese, Traditional Chinese, Korean, Spanish, French, and German
• Updated the icon and title screen

### 1.2 — 2026-09-29

・ランキングが正しく表示されない問題を修正しました（これまでの自己ベストも自動で反映されます）
・Game Center の実績を8つ追加しました
・広告を非表示にする購入（買い切り）を追加しました
・英語表示に対応しました（設定 → 言語）
・ダークモードでタイトル画面のボタンが見えにくい問題を修正しました

### 1.1 — 2026-06-30

・新しい操作モード「タップで移動」を追加しました。置きたい列をタップするとブロックがその列へ移動し、指を離すと落下します（従来のドラッグ／下フリックも設定で選べます）。
・同じ√どうしを縦・横に並べてつなげられるようになりました。T字に囲んでまとめて消すこともできます。
・スコア計算を調整し、あそびかたの説明を最新ルールに合わせて更新しました。
・ゲームオーバー後の広告表示まわりの不具合を修正しました。

### 1.0 — 2026-06-23

No release notes.

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## More apps by Naoki Chiba

- [Bus Location MAP: Tokyo](https://appshunter.io/ios/app/bus-location-map-tokyo/id6763555056)
- [Prime Logic](https://appshunter.io/ios/app/prime-logic/id6766418614)
- [Giken Band Ensemble](https://appshunter.io/ios/app/giken-band-ensemble/id6768064223)
- [Haneda Approach 3D](https://appshunter.io/ios/app/haneda-approach-3d/id6779796875)
- [Airport Weather Japan](https://appshunter.io/ios/app/airport-weather-japan/id6779813293)
- [Compose Studio Viewer](https://appshunter.io/ios/app/compose-studio-viewer/id6780131972)

All apps by Naoki Chiba: https://appshunter.io/developer/1895372512

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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 2026-10-31.*