I need a custom ios keyboard

I need an iPhone/iPad app. I already have a design for it, I just need it to be built. I am looking to have a custom keyboard built for me to then go through and fill in with my custom 'keys'. I have a small anount of ios development knowledge so i shouodnt need assistance implementing all the keys, mainly just looking to have a template keyboard. The keys im going to include are all emoji/image based