BIAS Amp for iPhone got the Reverb update that came out on the iPad version back in November.

What's new in BIAS Amp for iPhone v1.8.0:

Hi There,

Positive Grid is proud to introduce a significant update that will make the world's best amp modeling software even better!

In this update, we added 9 new reverbs to the BIAS Amp software that will also work seamlessly with BIAS Head and BIAS Rack (firmware update required).

Here’s more info about the Reverb feature:

-NEW: Reverb types that include Room (x2), Chamber, Hall (x3), and Plate (x3).
-NEW: Reverb controls that include Reverb Type, Decay Time, Mix, Damping (which simulates absorptive material in the reverb room, rolling off high frequencies naturally), Lo and Hi Cut filters, and Dwell (which saturates the reverb return).
-We have also made changes to make noise gate and reverb as preset dependent, which means you can save different gate and reverb parameters to different amp tones accordingly.
-Various minor fixes.

Hope you’ll enjoy it! To learn more, please head over to:
https://www.positivegrid.com/bias-head and https://www.positivegrid.com/bias-amp .

Rock On!
Positive Grid team