Building a Bluetooth keystroke transmitter

Hello!

I’m new here and very new to Sparkfun and the world of arduinos. I’m hoping someone will give me some guidance in how to create what I need. For work I have an iPhone and iPad I’m required to use and they automatically lock after 30 seconds and I can’t change that. I’m looking to create something to will connect to them via Bluetooth and at the push of a button it would mimic a keyboard and type out the letters of my password. Does anything like this exist or am I in the wrong place?