CHOMAR Antivirus Security is a free Android app that helps protect your device against various types of mobile threats such as trojans, spyware, and viruses. It comes with an on-demand scan feature that allows you to scan your apps, games, and files for malicious content at any time you choose. If any malicious content is detected, the app will isolate the harmful activities by quarantining them. You can also choose to uninstall any installed app that is detected as malicious.

One of the best things about this app is that it does not show any ads, nor does it sell your user data to other companies or ad networks. It is available in English, Turkish, and Russian languages. The app requires Android 4.1 (Jelly Bean) and higher to function correctly.

Overall, CHOMAR Antivirus Security is a must-have app for anyone who wants to protect their Android device against malware. It is simple to use, and the fact that it is completely free with no ads makes it even more appealing.