Just add their github repo url to Obtanium to install directly from source instead of using an app store. https://github.com/MutinyWallet/mutiny-web https://m.primal.net/HRPh.png
And what is obtanium?
Let's you install apps directly from the source, circumventing app stores. https://github.com/ImranR98/Obtainium
How? Why are anything that is related to bitcoin so difficult to understand/use for average people?
It's a nascent space. The more mature parts (saving #Bitcoin using a hardware wallet) are more accessible today compared with parts under heavier iteration (noncustodial #Lightning experiments).
Obtainium has nothing to do with bitcoin.