This is an app that aims to switch slides in a presentation on a computer, the phone must be connected to the same network as the computer and the computer must be running a python script found here: http://github.com/KonradIT/WearSlides
Enter the IP Address of the computer in the app and you are ready to control the presentation!\
Works with most presentation software (LibreOffice/OpenOffice/MS Office...)
Supports Always On.
More info: https://github.com/KonradIT/WearSlides#wearslides