LockItUp alternatives

This is the best app Ive tried in a while. It is truly amazing. I tried it once before i bought the pro version without hesitation. I have my iphone in my pocket while im listening to music and browsing the internet on my mac. I stand up and walk away and it automatically locks my mac and pauses the music. As soon as I sit back down again the mac is unlocked and music resumes playing. Amazing, truly amazing.

For some reason the mac app was in Portugese and not English when I opened it, but it fixed it self when i connected to my iphone.

10/10 would recommend!