Simple question, is anyone aware of a tool that can emulate screen glare for websites / apps? Specifically for mobile screen glare.
You can apply a screen glare texture on top of your UI in any graphics editor (Photoshop, for example in screen blending mode with levels adjustment of the image) or to make it an overlay image in your website. Example of such texture: Alternatively, you can use screen mirroring software (for example psmirror) to test the UI on the real device during UI development.
I don't think there is any software that emulates screen glare, especially for mobile devices.