Tons of malware infested apps get through both app stores.
https://www.pcmag.com/news/study-reveals-googles-play-store-...
https://www.zdnet.com/article/over-half-a-million-users-been...
https://www.tripwire.com/state-of-security/more-malware-infe...
https://www.darkreading.com/attacks-breaches/malicious-apps-...
https://lifehacker.com/great-now-the-apple-app-store-has-mal...
Etc..there were some studies posted about this too