KeepScreen (now free)

★★★★★ Excellent app, functions without fail This app works like a charm on my Moto X+1. You can select which apps you want your phone to stay awake for plus set the illumination the apps will have while they're open (full or minimal). Keepscreen only runs when the app(s) you've selected are fullscreen. Minimize those apps and Keepscreen stops, bring them back up and Keepscreen starts again. A brief notification at the top of the screen can inform you of each action. It's perfect for apps like Spotify and Maps.when used while driving. Highly recommend it!

★★★★★ Works Great But it needs a setting to start on reboot or power cycle, run as a service does not work on Jelly Bean.

★★★★★ This app is a lifesaver. Instead of reworking my OS on two ancient, very uncooperative Haipads, I got Keepscreen. Now I can use one tablet as an alarm clock and the other to give me a weather report and they stay on. This gave new life to two old tablets and saved me about $100. The trick is to install Keepscreen first, then download and install the application you want it to affect. Then set Keepscreen to that app.

★★☆☆☆ Used for years with zero issues but now.... Loved this app and used it every day. Suddenly it does not work and am forced to uninstall. Very disappointed.

★★☆☆☆ Doesn't work with the most recent update android 5.0 Don't work with verizons android lollipop 5.0 so if you have that running this wont work at all. I have a galaxy note 3 running unrooted stock android lillipop 5.0 same as all verizon users.

★★☆☆☆ Needs UPDATED I feel abandoned. This was the best app. Worked on everything. Once android did their latest update, it stopped working. Don't the app. distributers have a job to do!!