ADDENDUM: I just remembered that in iOS 10.3 Apple has provided a tool to help users identify installed 32 bit apps. (Settings > About > Applications — then touch Applications to see the names of the installed 32 bit apps) I will be very surprised if they do not do something similar in MacOS. Their idea being to put pressure on laggard developers, not users.
By-the-way Apple has already removed a substantial number of apparently moribund MacOS and iOS apps from their respective App Store.
: in iOS 10.3.2 the tap sequence is Settings>
General>About>Applications.
And thanks for the reminder Joemikeb. I just tapped it and was surprised to find 4 oldies but goodies on my phone.
