Syntorial, from Audible Genius, is about the 30th app I've seen updated to fix serious bugs on iOS 12. I'm kind of surprised by the severity of the bugs. This looked like an incremental update. I wasn't expecting many problems at all; like last year's iOS 11 update. Syntorial was apparently crashing out completely on iOS 12 prior to this update. And they're not alone. Please hold off on upgrading until more apps are updated!
The Syntorial update notes also mention that they are removing Audiobus and IAA from this version, ahead of a new app that can be instantiated multiple times with AUv3. This puts people in an awkward position. If you want to keep Syntorial with Audiobus you cannot update to iOS 12. That seems flagrant in an app costs $130!
What's new in Syntorial v1.6.503:- The last version was crashing in iOS 12. This version isn't. #magic
- Removed IAA and Audiobus support. Don't be mad! We'll be releasing a new app called "Primer" very soon, which will be the exact same synth used in Syntorial. Except this puppy will also be an App Extension, which you can open in Audiobus, Garageband, and any other App Extension-compatible app. Trust us when we say this is better, as you'll be able to open up unlimited Primers in one session, as opposed to being limited to just one Syntorial. That's why you shouldn't be mad. #behappy