The download of the app doesn't contain viruses or any kind of malware. Niconico コメントビューア has been originally designed by 株式会社ドワンゴ and it relates to the Video Players & Editors category. The tool is suitable for users aged 14 and older, people rated it 3.7 on Google Play.
Over 10K users downloaded and installed this application and the latest release was on Aug 28, 2014. Download the installation package of niconico コメントビューア 1.01 that is available for free and have a look at users' reviews on Droid Informer. The app is designed for Android 4.0 and above.