GarageBand for iPhone is quite the beast. It’s not a simple guitar amplifier emulator, as it also has built in instruments you can play (and record) such as drums and keyboard. There are also smart instruments that you can utilise. But I’m not here to cover any of that. I’m here to tell you that you can plug your guitar into your iPhone (using GuitarConnect Cable, Ampkit Link or GuitarJack) and play ‘amplified’ guitar. Luckily you can also record your guitar playing in a multi-track recorder.
GarageBand is one complete package. … GarageBand for iPhone