Record French text to speech as mp3 file
I need to record French text to speech as an MP3 file I can save and play back on my iPad or iPhone. I know how to make an MP3 file as an iTunes track from a text file on my MacBook Pro but I only have access to my iPhone and iPad now. I've searched online and in the App Store for solutions but haven't come up with anything. Making a recording of my own voice with the Voice Recorder app doesn't produce a track with high enough quality.
Thanks for any help you can provide, pointing me to apps or iPad features I've yet to discover.
MacBook Pro, OS X Mavericks (10.9.4), iPad mini WiFi, 7.1, iPhone 8.4