Nevolejte.cz - Stop Otravům! is a free Android app developed by TelephoneWare.com. It is a Czech non-profit project that aims to protect people from phone harassment, whether it's unwanted sales calls, annoying individuals, or fraudulent activities.

This app offers a solution for those who constantly receive unwanted calls and want to protect themselves and their children from inappropriate or dangerous situations. With Nevolejte.cz, users can block unwanted calls, receive warnings about unsolicited incoming calls, and have access to a synoptic history of blocked calls.

One of the standout features of this app is its functionality even without an internet connection. Users also have the option to locally unblock numbers and the app is easy to set up and use.

Nevolejte.cz - Stop Otravům! has received recognition for its impact, winning the first two places in the Mobile Application of 2017 poll in the categories of Apps for a Better World and Most Accessible Applications for the Visually Handicapped.