[freshfey]

I'd argue that only the last two questions are relevant.

- Both web and smartphone apps can create this kind of revenue. - The tech stack is 99% irrelevant unless the end customer depends on it, which in 99% of the times, isn't the case.

[tilolebo]

Please note that I have just edited my answer and added a question, so your comment actually refers to the 2 questions before the last one.