# BondingOS vs 1D DH国試 | 歯科衛生士国家試験アプリ

The clearest difference is ads: BondingOS at none against 1D DH国試 | 歯科衛生士国家試験アプリ's shown. BondingOS also leads on update cadence (every 2 months vs every 5 months) and iOS requirement (10.0 vs 16.4). On price, in-app purchases and device support there is nothing between them.

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

BondingOS ships an update every 2 months, 1D DH国試 | 歯科衛生士国家試験アプリ every 5 months. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | BondingOS | 1D DH国試 | 歯科衛生士国家試験アプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Size | 63 MB | 59 MB |
| Requires iOS | **10.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [株式会社デンタルアロー](https://appshunter.io/developer/1440037216) | [1D inc.](https://appshunter.io/developer/566809181) |

## What reviewers say

### BondingOS

[App page](https://appshunter.io/ios/app/bondingos/id1440037217)

**Features:** macOS Compatibility

**In-app purchases:** none


### 1D DH国試 | 歯科衛生士国家試験アプリ

[App page](https://appshunter.io/ios/app/1d-dh/id1445517109)

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

**In-app purchases:** none


## Frequently asked questions

### Is BondingOS free?

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

### Is 1D DH国試 | 歯科衛生士国家試験アプリ free?

1D DH国試 | 歯科衛生士国家試験アプリ is free to download, with no in-app purchases.

### Do BondingOS or 1D DH国試 | 歯科衛生士国家試験アプリ have ads?

1D DH国試 | 歯科衛生士国家試験アプリ shows ads; BondingOS does not.

### Which is updated more often, BondingOS or 1D DH国試 | 歯科衛生士国家試験アプリ?

BondingOS ships an update every 2 months, and 1D DH国試 | 歯科衛生士国家試験アプリ every 5 months. Most recently, BondingOS was updated on October 18, 2026 and 1D DH国試 | 歯科衛生士国家試験アプリ on October 11, 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.*