What vector drawing apps for Android you recommend?

[EmilyGraceSeville7cf]

I need a completely free of charge vector drawing app (preferably without ads), which allows me to:

• edit object nodes and their handles
• snap objects, nodes to each other
• has boolean operations

Currently I use VectorMotion which is fine for simple drawings like icons, but it is not the most stable software out there. So... do we have any better alternatives

I know that I can use Krita on tablets as it has vector drawing capabilities, but is there something more optimized for mobile devices in terms of UI?