# ダイビングスクールノリス　公式アプリ vs sifa

The clearest difference is iOS requirement: sifa at 13.0 against ダイビングスクールノリス　公式アプリ's 16.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ダイビングスクールノリス　公式アプリ ships an update every 34 months, sifa every 46 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ダイビングスクールノリス　公式アプリ | sifa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 34 months** | Every 46 months |
| Size | 12 MB | 3 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NORIS, K.K.](https://appshunter.io/developer/1516587379) | [masayuki hashizume](https://appshunter.io/developer/1504205644) |

## What reviewers say

### ダイビングスクールノリス　公式アプリ

[App page](https://appshunter.io/ios/app/id1516587380)

**Features:** macOS Compatibility

**In-app purchases:** none


### sifa

[App page](https://appshunter.io/ios/app/sifa/id1626933190)

**In-app purchases:** none


## Frequently asked questions

### Is ダイビングスクールノリス　公式アプリ free?

ダイビングスクールノリス　公式アプリ is free to download, with no in-app purchases.

### Is sifa free?

sifa is free to download, with no in-app purchases.

### Do ダイビングスクールノリス　公式アプリ or sifa have ads?

Neither ダイビングスクールノリス　公式アプリ nor sifa shows ads.

### Which is updated more often, ダイビングスクールノリス　公式アプリ or sifa?

ダイビングスクールノリス　公式アプリ ships an update every 34 months, and sifa every 46 months. Most recently, ダイビングスクールノリス　公式アプリ was updated on October 29, 2026 and sifa on October 25, 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.*