1. Installing Scarlet#
Based on system 16.5, accessible to the internet environment. (The feasibility of beta version 16.6 is uncertain, but it should work on other systems as well).
Open the webpage in a browser (Google Chrome): https://usescarlet.com/
Scroll down and find "install", click on it. Choose "Direct install" (the top option) for installation.
After installation, go to Settings > General > Device Management and trust the certificate.
2. Installing IPA file#
Open the Scarlet software, go to the middle page, click on the download icon in the top right corner, and select the IPA file to install.