Found this years ago and have been using it to help me with various things. Like game map designs, accurate pinpoints on a page, templates for various applications, MS Excel, Word PowerPoint helper, window positioning, act as a custom Ruler.
You can also censor chat if you are recording in a game (though, some games have it blocked by their anti-cheat).
PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica
Textro - Textro app offers features that let you create text animation videos so you can share them with friends and family members through various social media platforms.
Pennywise - Cross-platform application to open any website or media in a floating window
LayerX - An intuitive app to display transparent images on screen.
PiPer - A DIY Minecraft computer to build gadgets
PixelFlow - PixelFlow app is a video editor app that comes up with an extensive collection of more than 25 different animated text templates so you can make an intro for your video project.