I request a ProtonCalendar App for easy use on iPhone's and Android. Proton has already made MAIL and VPN apps successfully, so the Calendar app would be a great feature I would use multiple times everyday.

I have started playing around with Proton Calendar in beta. It looks nice. I cannot see a way to share events to other people or invite them to an event (internally to other ProtonCal users or externally to people using other calendar services). Is this feature available? If not, is it in development?

Thanks :)

Sync the Protonmail contacts with the phone address book (contacts app) and vice versa.

Bitcoin transactions fees are now too much, and it may take up to a few hours for a transaction to be confirmed. There's a payment system, which is nearly same of Bitcoin, Bitcoin Cash. Its devs have a better vision "low fees, 1 block (10 minutes) transaction confirm time." If you haven't heard of it, here (https://bitcoin.stackexchange.com/a/58969/38618) you can see that many wallets support it.

Kind regards.

It would be awesome if ProtonMial built apps for Windows and macOS just like on mobile. I feel that this is the missing gap for PM.

This would be the same as Support of TouchID for iOS. I know it would work only for Android 6 and up, but it's much more comfortable than PIN [of course as an option and not replacement of PIN completely]

English:
I'm using ProtonMail due to security concerns, and therefore I do not have Google Services installed on my device.

Please provide the ProtonMail Android APK as direct download on your homepage.

Deutsch:
Aus Privatsphäregründen nutze ich ProtonMail und habe deshalb auch keine Google Services auf meinem Gerät installiert.

Bitte stellt die Protonmail Android APK auch als direkten Download auf eurer Website bereit.

Support For More Languages (Including Right-To-Left)

Let's make it in some math style:

ProtonMail : Gmail = ProtonChat : Hangouts

:)

Secure private chat same principle of secure email, but applied to chats.

Please make an iOS version that works for the iPad. The current iOS is the same resolution for the iPhone stretched out that has a cumbersome keyboard that stretches across the whole email view. The view can be a lot more effective and incorporate a higher resolution on the iPad. Effectively the app looks terrible and doesn't utilise the possibilities of an iPad Screen.

Carddav Server For Contacts (Synching Contacts)

Dropbox and Evernote like service that share storage with protonmail. I think lots of people would happy to pay. :)

Schedule Emails In Advance

Within email systems, the requirement for a calender is high on the list of "must have's". The ability to encrypt your email should go hand in hand with a diary/calender/task system which will be tied in with your mail box and allow for interaction between all features.

Implement a 'send email delay' when you press Send button it does not send email immediately, just with a slight 5 to 10 second delay, or ability to cancel sending an email after I press Send button.
Just like Google has in its Gmail.

Have an option in the iOS app where you can enable a pin password or touch id password requirement everytime you open the app. Something simple just to keep your email from being snooped through, if your phone is open/unlocked. If you've ever used the Serverauditor app they have a similar feature and I find it very useful.

Search Email Text

Preview attachments. Like images can be seen in gmail and pdf's too.