Ok, as I said i am fine with alternative, and I understand that they are not a huge company and they wanted to make a good thing, but why a native app? This app

Ok, as I said i am fine with alternative, and I understand that they are not a huge company and they wanted to make a good thing, but why a native app? This app will probably run only on the most recent iOS versions, so this also cuts a part of "old" iOS users. Instead a website, maybe optimized for mobile(there are tons of way to do this, nowadays it's not hard) would have been avaible to everyone. Therefore the can expand easier, mostly because everyone WANTS an alternative. From the article i get that this way they try to encourage people to take photos. This is good. But it's not worth all the market you are cutting out, especially you are cutting out people who wants to buy, they have no reason to be forced to browse from the app. An alternative would be make the website available to everyone and suggest(not force) people to use the app just to make the advert. Maybe even by applying a little "tax" to those who use the website. This way i think you would have the same effect but a larger audience.