This App it is the latest 2015-2016 version of meter logger, and works great at my Samsung Galaxy S5 / Android 5.0 Even so this App needs few corrections. Text-to-speech Active voice Language selection option this must be made due the settings of your phone. You can setup Samsung TTS in English & Google speech engine in you local language. Now at Data log screen: I am measuring 220V AC and data log side axis this show a measuring range in the class of several Kilo-volts. Same bug at Min/Max/Average. PROBLEM: Comma Separated Values, for international compatibility... When phone is set using ENG language there is no problem. Screenshot feature this is fantastic! Great App, just needs few corrections, I do give five stars because this app has no hardware or software issues. I look forward for the next update. Note: All other similar App versions described as Keysight mobile xxx them are older.