They're pretty much the same, except the itch.io version has support for bluetooth synchronized peripherals. App lab version automatically updates. If you want an app lab key, just email support@heresphere.com from the email you used to purchase the app from itch.io.
Viewing post in When available through the Oculus Store?
Hi, would it make sense to still buy heresphere from itch to get the apk with the BT features and then get the applab key by email rather than buying from meta store?
Edit: I mean I'm fine with the apk and guess I'd prefer that if it has more features, but I'd just like to have access to both versions in case meta some time in future makes having developer enabled headset for installing external apks more difficult to use than it is today. in other words, after buying from meta store can we get the itch apk as well?