@dcz P.s. If your work involves porting any of the other software mentioned on the Mobifree site (https://mobifree.org/#solutions) to other mobile OS-es, or otherwise contribute to these (for instance DeltaChat runs on many platforms), that would of course also be eligible ... But if not just send an e-mail stating you're not sure you are in the right fund and that you are okay with us allocating your proposal to the most suitable fund.