Hello dear programmers,
Please I have a few questions about mobile apps like jij,olx,jumia etc. and I would like a knowledgeable and preferably experienced programmer to provide some answers.
1. Are they hybrid or native mobile apps?
2. Are they developed by their respective companies or by outsourcing/freelancers(considering how similar they all are)?
3. Almost everyone in my family has these apps on their phone but most don't even know what they are used for, how is that possible(seeing that none of them is an inbuilt app) ?
4. Why really do all these companies need a mobile site, can't they just stick to web?

Waiting for answers from all the beautiful brains in here.