Google Play puts apps that have seen a major upswing in installs during the past 24 hours in the “trending” section of the store. However, this seems to be a calculation based on percentages rather than raw value, so you get some strange stuff on there. First up this week is AppLock Free, which apparently lets you set pattern locks on specific Android apps. Also, it apparently needs a lot of permissions and serves ads unless you buy the premium version for $2. Sounds…great?