
Tutanota
Zoho Mail
Gmail
FastMail
Microsoft Outlook
Thunderbird
Posteo
Secure email with absolutely no compromises. Get your free encrypted email account today.

OpenStack
Amazon EC2
OpenShift
Google Compute Engine
Hostwinds
Docker Compose
AlwaysData
Apache's CloudStack is a Project backed by Citrix and designed to be a direct competitor to...

Which is more popular?
Based on our record, ProtonMail seems to be a lot more popular than CloudStack. While we know about 414 links to ProtonMail, we've tracked only 1 mention of CloudStack.
Website, pricing, platforms and company facts side by side.
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| Website | proton.me | cloudstack.apache.org |
| Pricing | — | |
| Company | Startup from Switzerland · 50 - 99 employees | — |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
CloudStack is recommended for enterprises and service providers that need a customizable and scalable cloud solution. It is particularly suitable for those who require support for multiple hypervisors and need to integrate with existing infrastructure components. It is also ideal for organizations preferring open-source solutions with active community support.
Walkthroughs and reviews on video.
ProtonMail Review - Good or Not?
More videos
Apache CloudStack - Storage - Snapshots - Code Review
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using ProtonMail and CloudStack. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Great company that is constantly improving their products in meaningful ways.
Email providers like Gmail and Yahoo offer lots of great features for free. However, all those freebies come at a cost, as these popular email services track your activity and target you with ads. In contrast,...
While ProtonMail is generally received in a positive light, it isn’t without its flaws. It’s been subjected to DDoS attacks that have made its services inaccessible to some users. ProtonMail is also not well suited to...
We have no reviews of CloudStack yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


You might want to consider getting a domain name of your own and then get email hosting which will allow you to set up your email in the way you want. If you don't want to have to manage and pay for domain name and email hosting, you may... Source: almost 3 years ago
I closed all Proton Mail tabs and navigated to protonmail.com and a cleared out login area was shown. Without checking the "keep me logged in", I entered my credentials and was prompted for my 2FA info. I entered that and it worked. Source: about 3 years ago
Can I add my gmail account to my proton mail account so I can send emails and choose betwen my gmail.com email or my protonmail.com email account? Im not talking about the easy switch feature btw. Source: about 3 years ago
You could look at the Apache Cloudstack project Https://cloudstack.apache.org/index.html. Source: over 4 years ago
When comparing ProtonMail and CloudStack, you can also consider the following products.


OpenStack software controls large pools of compute, storage, and networking resources throughout a datacenter, managed through a dashboard or via the OpenStack API.
Compare OpenStack to ProtonMail or CloudStack:

Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.
Compare Zoho Mail to ProtonMail or CloudStack:

Amazon Web Services offers reliable, scalable, and inexpensive cloud computing services. Free to join, pay only for what you use.
Compare Amazon EC2 to ProtonMail or CloudStack:

Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
Compare Gmail to ProtonMail or CloudStack:

OpenShift gives you all the tools you need to develop, host and scale your apps in the public or private cloud. Get started today.
Compare OpenShift to ProtonMail or CloudStack: