Phone call with recruiter, phone call with their only Android engineer.
Questions were all over the place from non technical to technical. I didn't feel a good vibe with their engineer so I wasn't further interested but also never heard back from them.
I guess they think ghosting appropriate behavior.
My main red flag was that I was told the company wanted to be nimble and purposely small when it's public knowledge that half their engineering team walked out recently. Things happen, own them, don't lie.