AUFX:Space 4+

Nice clean reverb, very tweakable, stable.

A weak point of most iOS synthesizers is their reverb which can sound tinny and overly bright. This app will fix that problem. Try running Sunrizer or Gadget or iSEM through this!

You can run other apps through Space via Audiobus, and record into something like Auria or Garageband, or even record within Space, and then export after. You can also use it as a Plug-in in Auria. Very stable, easy to use, and though it doesn't sound as sweet as my Eventide Space, it does the job better than anything else on iOS right now.

I play a lot of ambient music on a fretless bass and this effect app mixed with a chorus and my fretless bass creates an incredibly rich, clean soundscape! I can hardly play my fretless bass without this app it has such a vast dynamic range you literally feel like you entered another dimension in outer space! My favorite preset is "bright swirl" and with just a few tweaks of a slider you can make it virtually any reverb you desire! If you play any instrument I advise this app as a must get!

Anything he makes I get. It's the best, most functional, quality effects. Universal app! Thank you so much and looking forward to more, yet content w all that you've done so far. I use them in all my albums playing / recording live. -Planet Awesum

These are all the best ever in the universe and time tested. The dude that made these is a freaking genius