https://wccftech.com/todays-list-of-paid-apps-and-games-that-are-on-sale-at-the-play-store-including-one-ui-icon-pack-and-more/

All the free stuff was bad, so here are some on-sale titles instead.

Features

Privacy Mode – Read and reply all your messages without coming online and hide last seen!

MultiWindow/MultiTasking – Chat over the top of any window!

Clean Arrangement – New ChatHeads will appear on top of each other in the form of stack and won’t clutter your window.

DND Mode – Pause the ChatHead Service temporary and stop receiving its notification.

Blacklist Apps – Disable ChatHeads to pop up on certain apps

Blocked Users – Disable ChatHeads to pop up from certain users.

Lockscreen support – Chat directly from lockscreen for any messenger.