What is Reddit's opinion of Sound Lock?
From 3.5 billion Reddit comments

➔ Sound Lock website

By popularity on Reddit, this Service is:

4 reviews of this app found across Reddit:

2 points
·
18th Apr 2015
2 points
·
7th Jun 2014
1 point
·
17th Nov 2014
1 point
·
4th Aug 2014