Based on the provided key and text, I understand that you are looking to install PicPick Pro 7.2.3 on an iPhone.

However, it's important to note that PicPick is a Windows-based application and is not compatible with iOS devices like iPhones. It's only available for download on the Windows platform.

If you're interested in installing PicPick on your Windows device, I can provide you with the necessary instructions:

1. Go to the GitHub website and search for 'PowerShell' to download the install package.

2. Once downloaded, double-click the installer file and follow the prompts to complete the installation.

3. After installation, you can launch PowerShell from the Start Menu or by searching for it in the Windows search bar.

Alternatively, if you're looking for a screen capture and image editing tool for your iPhone, there are many excellent alternatives available on the App Store. Some popular options include:

* ScreenShot

* Snagit

* Camo

* Skitch

Please let me know if I can assist you with anything else!

For iphone instal PicPick Pro 7.2.3