[arbitrarian]

Great advice so far in this thread. I would just add that the must have apps are Be My Eyes, as already mentioned. This allows him to snap a photo and have it described by ChatGPT4-vision for free. He can also ask for more info etc. And if that doesn't work out, he can call a volunteer for free, 24-7.

Another good one is Seeing AI. This one is from Microsoft, and it has all sorts of useful utilities inside it, including a way to tell how bright a room is (helps to know if you left lights on or not), a barcode scanner that gives you product info (it beeps at you faster or slower to let you know you're getting warmer), a color analyzer that kinda' works sometimes, a document reader with voice guidance to help you get the camera lined up, a currency reader, and I think a few more goodies.

Many countries also have a library service for the blind. In the United States, it's called the National Library Service for the Blind. Definitely get him setup with them, or your other country's library service. The one in the U.S. let's you download an app and download tens-of-thousands of audiobooks for free. They also have a few magazines that they record each month. It's pretty amazing, and all available from his phone. The app is called Bard Mobile in the U.S.

I happen to be blind myself, so feel free to ask anything else you would like. I've been doing this for a while, and there are several more of us here as well.