![](/wp-content/uploads/2017/12/whack-a-mole-1-300x188.png)
Most “apps” that help you block calls are just a game of whack-a-mole. People call you, and if you don’t want them to call again, you add them to a block list. This puts you one step behind spam callers. They just change their number and you’re helpless again.
![](http://www.appdingo.io/wp-content/uploads/2017/12/whack-a-mole-2-1-300x188.png)
Some apps add in the ability to share your block lists with a community of other users. This helps, but it’s still a game of whack-a-mole…just with more hammers.