I ended up buying some Comply foam tips for mine, and now they don't come out of my ears like they did with the silicone tips that shipped with them. Worked well on both the APP1 and APP2. You can get them on Amazon pretty reasonably.This had me cracking up.
Question - I switched from my APP1 and to Beats Fit Pro because my right APP1 bud would always come loose and fall out of my ear after just a few minutes of usage. No tip size made a difference. I'd like to get back into the APP, maybe after they add USB-C, and I'm wondering if anyone has had poor APP1 fit issues but better success with APP2...?