# ガチ素因数分解 vs Root Drop

The clearest difference is iOS requirement: ガチ素因数分解 at 15.0 against Root Drop's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. ガチ素因数分解 sells 5 one-off in-app purchases and Root Drop sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ガチ素因数分解 ships an update every 3 weeks, Root Drop fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ガチ素因数分解 | Root Drop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (23 ratings)](https://appshunter.io/ios/app/id1480561747/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 100 MB | 9 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Chikai Ito](https://appshunter.io/developer/1480561746) | [Naoki Chiba](https://appshunter.io/developer/1895372512) |

## What reviewers say

### ガチ素因数分解

[App page](https://appshunter.io/ios/app/id1480561747)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| コイン150枚 | $0.99 | one-time |
| コイン400枚 | $1.99 | one-time |
| コイン1000枚 | $2.99 | one-time |
| 広告削除 | $4.99 | one-time |
| コイン2700枚 | $6.99 | one-time |


### Root Drop

[App page](https://appshunter.io/ios/app/root-drop/id6782461808)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

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


## Frequently asked questions

### Is ガチ素因数分解 free?

ガチ素因数分解 is free to download, with in-app purchases available.

### Is Root Drop free?

Root Drop is free to download, with in-app purchases available.

### Do ガチ素因数分解 or Root Drop have ads?

Both ガチ素因数分解 and Root Drop show ads.

### Which is updated more often, ガチ素因数分解 or Root Drop?

ガチ素因数分解 ships an update every 3 weeks, and Root Drop fortnightly. Most recently, ガチ素因数分解 was updated on November 3, 2026 and Root Drop on October 31, 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.*