I want to use Proton Bridge but I can't because I am not a paid subscriber.
I want to pay but you make it very difficult to find where to sign up and begin paying.
I've searched high and low but cannot find it.
Make it easy to find.....

Have nested subfolders (within folders). I have this feature in all other mail apps I use

Do not allow that you can log into the account with every address.

If my account name is john.smith then only allow login with john.smith or john.smith@protonmail.com. Not with finance.john.smith@protonmail.com or any other address.

Perfect would be if you would have the choice what address can be used in order to log into your account.

With the current way you have to give away your login username in order to send emails. Hiding the username from the public would be an advantage, since they would have to guess your username and the password. Not only one of them.

It would be great that we can apply newly created filters on the mailbox.

Keyboard Command to View Keyboard Shortcuts
For those of us who try not to touch the mouse, a command (e.g., Ctl + ?) to access the list of Keyboard Shortcuts.

I don't like getting notifications for every single email I get, I've used other less secure email addresses to receive routine emails that I don't want notifications for, but of course with the ever growing problem of hacking, I realize that I'm leaving information vulnerable as an attack vector. It would be nice to have notifications for certain ProtonMail addresses, while others are received quietly, yet all available under the same login.

It is a good idea if you let users to sort emails by sender, subject or date, (ascending or descending) by clicking a tabular button at the top of each column , just like any file explorer in detailed view.

Most Spam I get comes with the same title 'AMONE' but different email addresses so I can't stop them from clogging my in box. If we could use 'Key Words' along with or in place of addresses it could go a long way in stopping Spam.

This flag will alert the user not only that they HAVE a msg but how MANY are waiting to be read as well. Every other mail service has this. Why not PM?

Show count for trash folder in web app sidebar like you do for inbox, starred, spam and labels.

I want to use more than three folders, but I don't need anything else that comes with an upgrade so why can't I buy folder access seperately OR pay less (a dollar a month/dollar per folder, etc...) for features like folder use without the extras. OR you could just give free users access to unlimited folders like EVERY OTHER email provider. Please, this is a bigger problem then some people realize.

Why force it? I only get false mails in spam and then don‘t notice them. Let us decide if we want it.

Expand search on filters

- allow to search a label and a folder
- allow to search a label and/or a label and/or a label
- allow to search (a label and/or a label) and a folder

Then I can look for different aspects of the same directory.

The power of labels lies in the ability to have multiple labels per email.
At the moment, when there are more than 1 labels assigned to an email, they are stacked and you can only see the top one, having to hover over it to expand them and see the rest.

This negates the whole point of having multiple labels as an easy visual way to identify the labelled emails.

It would be much better for productivity and ease of use if multiple labels were unstacked and shown fully.

Could it be made to run through tor when using the android app of it's not already possible? If it is where could I find configuration info?

An option to select multiple emails to be moved into the trash or into a specific folder would be great.
(iOS App)

That would be great if protonmail provides a large amount of cloud storage (1TB or more) like google drive or one drive for emails and file sharing with reasonable price.