Splashify - Beautiful desktop wallpapers for Mac and Windows
Cold Turkey - Cold Turkey is a free productivity program that you can use to temporarily block distractions so that you can get your work done!
Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android
Stay Focused - More suitable with Google Chrome, this service enables you ensure you do not waste precious time on updating Facebook status or chatting with people.
Wallcat - Enjoy a new, beautiful wallpaper, every day.
Freedom.to - Freedom is a productivity hack that lets you block apps, websites or the entire Internet on iPhones, iPads, Windows and Mac computers.