Works as described... However As of 8-18-15 this app has a problem on my stock Nexus 5 with not staying on any more that 8 hours at a time when though I paid for the full version. Sometimes it'll work most of the day but other times just until I leave the house 15 minutes after starting it. After the app unexpectedly closes it requires a login to Dropbox again making it impossible to rig a script to simply start again after closing... It's quite disappointing considering it's a near perfect solution when it runs like it's supposed to.
Have set recording parameters over and over but it never records anything.