The Apple App Store allows this (you can gift apps), but Google Play has no such mechanism unfortunately.
Threema would need to switch to an in-app purchase model in order to be able to handle "gifted/sponsored apps" manually, but then people would probably be pissed because "the app looks free but then requests a payment".
The Android version can also be obtained (and gifted) through https://shop.threema.ch/, but this requires manually installing an APK. The best way would be for Google to provide a means to gift apps to others in the Play store. I really can't comprehend why they don't do this.
Threema would need to switch to an in-app purchase model in order to be able to handle "gifted/sponsored apps" manually, but then people would probably be pissed because "the app looks free but then requests a payment".
The Android version can also be obtained (and gifted) through https://shop.threema.ch/, but this requires manually installing an APK. The best way would be for Google to provide a means to gift apps to others in the Play store. I really can't comprehend why they don't do this.