Android’s lock screen is a strong first layer of protection for your mobile, keeping snoopers firmly locked out of your device.

But once you’re in, just about everything else is freely accessible. And if you’d like others to browse your photos, but not anything else, that could be a problem.

Avira AppLock+ offers one solution, enabling PIN-protection for individual apps or entire groups.

Spend a few moments setting it up and you could permit access to your photos, videos and music, for example, while blocking access to your emails, social networks and browsing history.

PIN-protect confidential apps

AppLock+ also works well as a parental control system, by placing restrictions on purchases, downloads, system settings changes and more.

Could your kids bypass it? A remote device management system lists all their active apps, helping you monitor what they’re doing from anywhere in the world.

A couple of in-app purchases extend your parental powers even further.

Schedule Lock enables restricting app use by the time of day, maybe blocking Facebook while your kids are at school.

Geo Lock automatically locks apps at a defined location, within the radius you’ve specified.

Avira AppLock+ is relatively new, and could benefit from more configuration options. There’s more than enough power here to be useful, though, and the 4-star rating at Google Play suggests it’s working well for most people.

Avira AppLock+ is a free app for Android 4.0.3 and later.