Apple iOS, iPadOS
If you can't access Google Play Store, the APK can be downloaded here.
Windows Desktop Client
Download APK for Vuzix here (current version: 6.9.0-5 build #264):
Download APK for Zebra here (current version: 6.9.0-6 build #265):
Instruction for how to install and run XMReality on Iristick can be downloaded here.