YouTuber Nathan D Farrell did an impressive demo of a bunch of the most popular reverbs available on iOS! While he is quick to point out that this isn't an in-depth comparison, I think the video does a great job of revealing the character of the individual verbs.
Here’s brief demo of each reverb with a synth pluck sequenced in Drambo. This is not meant to be an in depth demo of each reverb, but a surface comparison for ambient purposes.
What’s your favorite reverb on iOS?
Atmosphere Cloud, Blackhole, Pro-R, EOS2, 4pockets Shimmer, Eventide Crystals, RF-1, Granular modular, FAC Alteza, Zero Reverb, Ultratap, Kleverb, Amazing Noises Reverb, Discord4, Drambo, TB Reverb.