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).
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.
Previewed - Beautiful mockups & graphics for your next app
LayerX - An intuitive app to display transparent images on screen.
Craftwork - A collection of User Interface resources made by Craftwork
CThruView Transparent Image Viewer - CThruView is a free transparent image viewer that allows mouse clicks to go through the image.
Design Camera - Drag and drop 3D mockups