Paying a tutor or a class might be a good accelerant since you could ask fundamental questions in your native language. Once you have the grammar scaffolding, you could then use flashcards to start building vocab or looking for natives to share conversations with. Note also: immersion rarely works without some foundations to build on (unless the language in question is basically the same as your native language like Dutch is to English). The TL;DR is apps are more entertainment then education.
Paying a tutor or a class might be a good accelerant since you could ask fundamental questions in your native language. Once you have the grammar scaffolding, you could then use flashcards to start building vocab or looking for natives to share conversations with. Note also: immersion rarely works without some foundations to build on (unless the language in question is basically the same as your native language like Dutch is to English). The TL;DR is apps are more entertainment then education.