n mobile</span> <span class="bad">Expensive</span></li>
</ul>

<p>Sadly, there is only one provider out there that offers a combination of mail hosting, calendar/contacts, and file cloud with all items fully end-to-end encrypted. That one provider is Proton Technologies. Unfortunately, while ProtonMail is a great and mature product, the other offerings (ProtonCalendar and ProtonDrive) are still very immature and can't yet compete with the more specialised providers.</span>

<h4>Strategy 3b: combination