If you're on iOS and you want to sequence actual synths, look no further. It's amazing how many synths and effects you can have going at once within Nanostudio (as opposed to trying to sequence 15 different synth apps... which you can't!).
Best 20 bucks I've spent on my device(s, it's a universal app).
I love this reverb. I mostly use it for long washed out reverbs of the ambient or shoegazer variety. Beautiful and simple. Controls are easy to use and you'll get good results almost immediately. I wish I could justify the expense of its big brother reverb as I'm sure that one rules as well. Still, I love the limited options on this one - helps me get it dialed in and moving on.
Works well in both Logic and Reaper.
KVR wants another 50 characters to submit this so I'm just gonna type here for a second. Don't mind me.