# Scent Expert vs 安规真题库

The clearest difference is in-app purchases: Scent Expert at none against 安规真题库's 3. Scent Expert also leads on device support. On price and iOS requirement there is nothing between them.

Both are free to download. 安规真题库 sells 3 one-off in-app purchases. Scent Expert asks for nothing beyond the download.

## The numbers

| Metric | Scent Expert | 安规真题库 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 6 months | — |
| Size | 182 MB | 64 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [静康 麦](https://appshunter.io/developer/1709029897) | [zhangpeng](https://appshunter.io/developer/1736067310) |

## What reviewers say

### Scent Expert

[App page](https://appshunter.io/ios/app/scent-expert/id6477283518)

**Features:** macOS Compatibility

**In-app purchases:** none


### 安规真题库

[App page](https://appshunter.io/ios/app/id6480512077)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月卡 | $2.99 | one-time |
| 季卡 | $2.99 | one-time |
| 年卡 | $3.99 | one-time |


## Frequently asked questions

### Is Scent Expert free?

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

### Is 安规真题库 free?

安规真题库 is free to download, with in-app purchases available.

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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.*