Open Lock！

Open Lock! is one of those apps that only seem to want to test your patience once you’ve installed it in your Android smartphone.

Open Lock! only challenges you to click hundreds of times on a safe box that appears on the screen of the interface.

There are four series of one thousand clicks and one of ten thousand which you have to complete before you can get the mysterious reward. Reward which is non-existent by the way. In order to accelerate the process, you can watch some ads.

If you want to wear off your hand by endlessly clicking on the screen of your smartphone and look for a reward that’ll never arrive, Open Lock! is no doubt the app for you.