[Nullabillity]

GPLv3 has a Tivoization clause: the user must be able to replace the code with their own fork.

[colejohnson66]

If you own the rights to all the code, you can relicense at whim. GPLv3 for the desktop version. GPLv2 (or even proprietary) for the iOS version.

[ryeights]

GPLv2 is not compatible either: https://www.fsf.org/blogs/licensing/more-about-the-app-store...

[tinus_hn]

What’s keeping them? They can get their own account or they can even use the free accounts.