The only Android app that gives you the UNABRIDGED Liddell-Scott Greek Lexicon-classical Greek, not modern! All other contenders whose apps claim to have the LSJ only have the Intermediate abridgment. This is an upgrade a long time in the making, after many user requests, and follows the recent user interface upgrade.
Walter M. Shandruk is the developer of the tool that can be found in the Books & Reference category. This application was downloaded and set up by over 1K users and the latest stable update was on Aug 28, 2014. On Google Play, the app was rated 3.8 by its users.
Get the setup package of LSJ Greek Dictionary 2.0.5 that is completely free of charge and take a look at users' reviews on Droid Informer. The download of the app doesn't contain viruses or any kind of malware.