It's been a while now but once out of curiousity I tested the text to speech functionality (with my eyes closed) on an iPhone and another device (a laptop maybe?), and found iOS to be more advanced but still lacking. I don't know much about this but it's nice to see improvements. GrapheneOS seems to be a high value project in terms of dollars-to-output.
Even if you don’t value this particular function and even if it’s not as good as Google or Apple, I think it’s important to have viable free alternatives so if Google and Apple rapidly become (significantly more) actively hostile there are viable alternatives.
Yeah I've never regretted a Monero donation to them.
They accept more than 11 different payment methods[1] for donations and pay most of their devs in Monero.
[1] https://grapheneos.org/donate