I have the AmpliTube and VocaLive apps on my IPad Pro and I love them. I have almost all the amp models including Fender, Orange, Mesa Boogie, the Jimi Hendrix Marshall amps some of the British Collection. I have most of the stompbox models too. These are some fun apps to play around with. I don’t know how close the amps sound to their real counterparts but you can get some really good sounds through them. You can set the settings so the sound stays on even when the app isn’t in front and this is great for playing along with backing tracks from YouTube or Spotify. I use the headphone plug on my iRig 2 to run a stereo cord from the headphone plug to the 1/8 inch aux in on my amp. That way I get the volume of an amp without the amp coloring the sound. Running it through the aux in I guess skips the preamp and just runs through the amp speaker. I use my iPad‘s controls to control the volume up or down. It works great! to do this you have to go into settings and turn off the no feedback setting.