According to my opinion, this loan is better for rich people it is better because they do business. If they need money for a day or two, then they can take it. It will not be difficult for them. If a poor person takes it, it will be difficult to give him money because he has no business.
You are missing the point, loans are good for everybody, it only depends on what you want to use it for, your plan of repayment and the interest payable on the loan. Loans have saved the day for the private and the public, however, what we fear about the "loan apps" is their interest rate, they use people's desperation to exploit them, so not even business people will do well with their Ts&Cs. Can you imagine paying 20-35% on loans borrowed for just a month? That's crazy!
Also, I believe those applications have a reliable market for people to download and use them due to two important factors: the lack of banking services in their country (this is common in Latin America/ Asia ) and also because the implementation of credit scores. Those unfortunate people who do not have a good credit story will have not as many options as the average borrower, so they will be forced to opt for those applications in order to apply for a loan. It is not a coincidence those applications to borrow money have their targeted audience in developing countries, where there is desperation and people willing to live being slaves to their own debt.