Apple’s increased focus on privacy and security has given birth to the “Sign in with Apple” feature, which was first announced at WWDC 2019 earlier this year. This feature enables users to log into new apps and services using an Apple ID, simplifying the signup process down to just the click of a button.

Also, if you remember, Blue Mail was removed from the Mac App Store for being a spam app that duplicated another app’s content i.e. TypeApp a couple weeks prior to “Sign in with Apple” launch. Blix, however, says that TypeApp was voluntarily removed from App Store weeks prior to Blue Mail’s launch and Apple’s claims are false and promote illegal monopolization. The developer demands injunction, damages, and legal fees under the lawsuit.