Download mobile apps directly from your website
Provide a way to download the mobile app for Android phones directly from your website. People are seeking ways to lessen their exposure to Google. They find ProtonMail and sign up, but then they have to use a Google account to go to the Google Play Store to download your app. This defeats the purpose. Currently, I am using your desktop website on my phone to see how it works, to investigate that option for a blog site that wants to post alternatives. Adding the option for downloading the apps directly from your website could be a great selling point.
You can download the app directly here: https://proton.me/mail/download