A:AnswerYou are asking two different questions. Software on this tablet can convert your spoken word to text. Software on the receiving tablet can convert your spoken word to text. However, they are separate functions, performed by separate software, on separate devices that do not necessarily work in tandem.
A:AnswerThose for Android, generally speaking, will work on this tablet, but you should look at the Play Store for specific requirements for the app you are interested in running.
A:AnswerThis tablet uses the Android OS. You can only put Android compatible apps on it. By definition, a "PC" version of any software is meant to be used by PCs, which are typically Windows OS.
A:AnswerImpossible to say without knowing your specific cellphone, carrier, and carrier restrictions. The tablet will connect to any device that can provide a WiFi signal (password needed if it is a locked signal). Does your cellphone provide a WiFi signal?