"I know that no computer app can just appear or develop by chance even if I will have a rest of 1 billion years."
Error: chance <> evolution.
Evolution is the third alternative to creation and chance:
Creation: a sentient being creates stuff deliberately.
Chance: a single(!) point in time where stuff just happened to fall into the right place.
Evolution: the continuous process of a) random variation; b) natural selection upon said variation and c) repetition.
Note how creation and chance require perfect conditions to happen ("a supreme being", "an impossible chance"), whereas evolution is an imperfect process of trial and error.
Nothing in the nature evolves by itself.
By change I mean evolution also, because I see that everything around me degrades in time (even my computer and my car).
Evolution is a lie.
"I know that no computer app can just appear or develop by chance even if I will have a rest of 1 billion years."
Error: chance <> evolution.
Evolution is the third alternative to creation and chance:
Note how creation and chance require perfect conditions to happen ("a supreme being", "an impossible chance"), whereas evolution is an imperfect process of trial and error.