Navigate where the Voice's Data & APK is Android\Ivona.Download the ZIP & extract it to your Home Folder(Highest level folder) on your Android, Yes to Merge.Ivona TTS - Amazon Kindle Fire OS.zip How to install There is an Official way but with a older more Limited set of Voices: IVONA Text-to-Speech HQ' Beta Voices included (all English ones) Ivona local offline TTS synthesizer Ripped From Amazons Fire OS(Kindles, Phones etc.) made to work on All android using a Russian Moded APK.