You could technically use your hands to steal from someone or worse, but it’s not assur to have hands.
Reb Yid, I don’t care if, as per your subtitle, your post was ironic. It’s simply ridiculous. At best, it’s a poor joke, at worst it’s kefirah. I could argue that, according to your logic, there was no earthly reason to do any Pesach cleaning, or keep Shabbos as we know it, but that would be allowing myself to be dragged down to your level. I say this not to demean you in any way, and I am sorry if my language comes across as harsh, and I deliberatley toned it down, but that previous point can only be described as facetious.
Newbee, I think on this matter I have made myself perfectly clear. You are being, I’m sure unintentionally, quite vague about what we are talking about here. I have outlined above that the parameters are simple. If the phone has what we would call ‘internet access’, meaning it is possible to browse online relatively freely (and I mean with a filter, without it is even more obvious), and not just have only one email app and one finance app that work, then having a Torah app too, even if you feel you cannot be separated from it, is not a good reason to possess one. If we are talking about a simply phone that can only access email and finance, and you really need it, then your Torah app is simply a great bonus.
Or to put it this way: A phone with ‘internet access’, is a negative thing to have, and daas torah dictates that one should not possess such a device. Of course, there are a few exceptions, in a case where not having one would have a significant impact on ones livelihood. For the clear parameters, ask your LOR. In those exceptions, I find it hard to think of a single case where the need to browse the internet, access news, social media and video sites is necessary. Technically, for it to be justified for one to possess a smartphone, one must absolutely require one, which doesn’t apply to most people, and even in those few cases where it does, one should only give the phone the ability to access those few apps he needs, for example, email, finance, ebay, and some kosher apps besides, perhaps. So in this minority of cases, then the Torah app is praiseworthy. If the situation does not meet thee guidelines, better to get rid of the phone and the app.