# Whetstone OS vs Plume DP

The clearest difference is device support: Plume DP at 2 against Whetstone OS's —. Whetstone OS's advantage is iOS requirement (12.0 vs 17). On price 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.

## The numbers

| Metric | Whetstone OS | Plume DP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Size | 42 MB | 172 MB |
| Requires iOS | **12.0** | 17 |
| Devices | — | **iPhone, iPad** |
| Age rating | 17+ | 17+ |
| Developer | [海燕 杨](https://appshunter.io/developer/1647732351) | [深圳市普博医疗科技股份有限公司](https://appshunter.io/developer/1630902616) |

## What reviewers say

### Whetstone OS

[App page](https://appshunter.io/ios/app/whetstone-os/id6443927616)

**In-app purchases:** none


### Plume DP

[App page](https://appshunter.io/ios/app/plume-dp/id6754446861)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Whetstone OS free?

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

### Is Plume DP free?

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

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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.*