
Linode
DigitalOcean
Microsoft Azure
Amazon EC2
Vultr
Bluehost
Google Compute Engine
OpenStack software controls large pools of compute, storage, and networking resources throughout a datacenter, managed through a dashboard or via the OpenStack API.

Tutanota
Zoho Mail
Gmail
FastMail
Microsoft Outlook
Thunderbird
Posteo
Secure email with absolutely no compromises. Get your free encrypted email account today.
Which is more popular?
Based on our record, ProtonMail seems to be a lot more popular than OpenStack. While we know about 414 links to ProtonMail, we've tracked only 2 mentions of OpenStack.
Website, pricing, platforms and company facts side by side.
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| Website | openstack.org | proton.me |
| 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
OpenStack is particularly recommended for large enterprises, organizations with skilled IT teams, academic institutions, and service providers that need a highly customizable and scalable cloud solution. It's also a great fit for entities with specific compliance requirements or those that need to run a private cloud with tailored configurations.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
OpenStack Summit Primer, The Who, What, Why and How of OpenStack
More videos
ProtonMail Review - Good or Not?
More videos
How often each product is chosen within a category, 0–100% relative to the other.


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


OpenStack is a cloud framework. It provides users and enterprises with horizontal scale infrastructure. Its tools allow you to compute, store and share data and resources. It also provides self-service administration...
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...
Recommendations tracked on public social media and blogs since March 2021.


In my first post, I looked into what is OpenStack and how, if done right, can be quite a powerful ally in our cloud deployment strategies. In this post, I want to start looking at how we can create an application to learn the basics and... - Source: dev.to / over 5 years ago
While searching for solutions and documentation on the various problems I've come across, I would often see references to OpenStack and it got my curiosity going. What is OpenStack? What services does it offer and who owns it? How do I... - Source: dev.to / over 5 years ago
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
When comparing OpenStack and ProtonMail, you can also consider the following products.

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Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.
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Windows Azure and SQL Azure enable you to build, host and scale applications in Microsoft datacenters.
Compare Microsoft Azure to OpenStack or ProtonMail:

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 OpenStack or ProtonMail: