I’d never actually heard of Infomaniak before your post, but they do look good.

I’m glad to see the mods have permitted your post comparing secure email options. Though it makes me wonder why my post yesterday comparing VPNs was removed. Strange. Thanks OP for making this comparison, I’m sure it will help people. I recently went through this same process of comparing secure private email providers, and decided to go with Tuta. I liked Proton, but prefer Tuta’s simple interface. Mailfence’s Android app doesn’t work in landscape on tablets, and their customer service wasn’t great, and the others I tried lacked integrated calendars or Android apps.

I don’t believe so. You have to use their own app.