I have been using metamask chrome browser extension for a long time, I didn't have any problems until today when I downloaded the metamask application from gplay and installed it on my mobile. I entered the seed phrase from a fund account after a few hours the funds simply or evaporated without a trace on the blockchain. later I documented from google that there is a fake metamask wallet apk that steals your existing funds in gplay. After many documentaries on Google, I found out that the metamask should only be downloaded from the official site.