There's lots of Christian apps to put on your mobile devices. Some are even working on a Jesus app which may bring you into closer contact with "The Son of God". I've seen an app that puts a strong image of Christ into your brain. I'm not enthusiastic about that one.
The closest thing I have to "a Jesus App" in this blog is the list of entries on the right side under "Cosmic Views Of The Universe". Check them out.
I feel many of us have a psychic channel in our mind that we seldom use. It allows us to use spiritual perceptions throughout the cosmos. If there was a Jesus app, it would be connected to us through "A Third Eye".
You might also look on this app as a radio channel where all you have to do is "Turn Your Radio On". Ray Stevens sings about how it's done.
St Johns