thx @r0kk3rz for beeing much quicker than me, could not say it better.
honestly, most native apps are hobbyist projects and i am surprised again and again with the quality of those. currently i am using dalvik only for games and some remote apps like yatse, fhem and an ipcam viewer.
It is conveniently possible to limit all privacy related tasks to sailfish os in my usecase.
The android appstore of my choice is aptoid! Update policy and ability to have substores is much better than playstore imho.
Regarding privacy restriction for apps i would like to add that great progress has been made in the last july update. Sailfish always had a “system setting > Apps” section where only stock jolla apps where slightly configurable until the last update. Now we got settings for all individual dalvik apps with options to clear app-cache and allow startup of services at system start plus some more. The road for more privacy related settings per app is paved, so to say.
And if you think privacy wise, it is a nice feature that dalvik apps are not completly system integrated to sailfish. We just recently saw stagefright and earlier OMA-DM vulnaribilities effecting nearly all android devices, but not sailfish directly because alien dalvik behaves a bit like sandboxed on sailfish. In both cases malicious commands/messages from outside where handled by sailfish first and not forwarded to dalvik.
And thanks again for your interest, @schept!