just that the mobile Proton Mail app does not support fulltext search. I know why, but I still think it’s doable the same way as in the web browser If your mobile has a modern Web browser I’m pretty sure you can do full text search in there too. Also FWIW it’s a constant struggle for everyone. Corporations do their very best, both technically but also with marketing and lobbying, to make it nearly impossible. We have to learn, help each other, vote and it will never stop. Still, each step mattes so kudos on even attempting.