# 瞬間素因数分解 Prime Factorization vs 積分ますたー

The clearest difference is ads: 積分ますたー at none against 瞬間素因数分解 Prime Factorization's shown. 瞬間素因数分解 Prime Factorization's advantage is update cadence (weekly vs every 2 weeks) and iOS requirement (17.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 瞬間素因数分解 Prime Factorization sells 1 one-off in-app purchase and 積分ますたー sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

瞬間素因数分解 Prime Factorization ships an update weekly, 積分ますたー every 2 weeks. The most recent releases landed on September 21, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 瞬間素因数分解 Prime Factorization | 積分ますたー |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 3 MB | 106 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YUSUKE MIZUNO](https://appshunter.io/developer/1729948508) | [Jun Yamashita](https://appshunter.io/developer/1640634926) |

## What reviewers say

### 瞬間素因数分解 Prime Factorization

[App page](https://appshunter.io/ios/app/prime-factorization/id6478605149)

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

**In-app purchases (1)**

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


### 積分ますたー

[App page](https://appshunter.io/ios/app/id6736927178)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $3.99 | one-time |


## Frequently asked questions

### Is 瞬間素因数分解 Prime Factorization free?

瞬間素因数分解 Prime Factorization is free to download, with in-app purchases available.

### Is 積分ますたー free?

積分ますたー is free to download, with in-app purchases available.

### Do 瞬間素因数分解 Prime Factorization or 積分ますたー have ads?

瞬間素因数分解 Prime Factorization shows ads; 積分ますたー does not.

### Which is updated more often, 瞬間素因数分解 Prime Factorization or 積分ますたー?

瞬間素因数分解 Prime Factorization ships an update weekly, and 積分ますたー every 2 weeks. Most recently, 瞬間素因数分解 Prime Factorization was updated on September 21, 2026 and 積分ますたー on September 15, 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.*