Voice Record Pro

This is a great tool to record your voice. It allows you to check the sound levels, as well as select the quality of the recording (great for NCEA!). You can change the format of the file as well as some simple editing tools and loads of sharing options.

Garageband

GarageBand turns your device into a collection of Touch Instruments and a full-featured recording studio — so you can make music anywhere you go. You can also use Live Loops, to make it easy for anyone to have fun creating music like a DJ, by triggering loops and audio effects in real time. This fantastic tool will also link in with other audio apps to allows you totally flexibility and creativity.

Launchpad

This super cool app allows you to make music at the tap of a button. Simply add the desired loops and sounds, and then record, integrate with GarageBand, or add your own effects and sound levels. Super cool way for students to get started with DJ skills.

Autorap

All you need to do is talk, and Autorap does the rest!  You can change the backing track, but only a few limited free options. It's a great way to start and ensure everyone experiences success before moving on to other apps.

Talk mode: instantly turn your words in to a rap song
Rap mode: Auto-tune your freestyle verses (corrects bad rapping) 
Remix - recreate the rap in different beats
Rap Battles - show off your rapping. 

Soundcloud Pulse

Are you a creator? If you make music, podcasts or anything else audio and upload your work to SoundCloud, this app will let you manage your account and keep your community humming. You’ll need a SoundCloud account to access SoundCloud Pulse.