C# (Classic .exe, Windows 10, Windows Phone etc.) Protection

[mr.exodia]

Obfuscators help keeping away the most basic attacks, however you should use a key scheme that requires patching. Probably your app will be released once or twice, but if you don't keep things interesting enough for the guys patching it will not get cracked.

Generally you shouldn't worry too much about people cracking your. If you make it the right price people with enough money will buy it anyway, you don't miss out too much on cracks.