
Codecademy
edX
Treehouse
Hackr.io
Free Code Camp
Pantheon
Pluralsight
Download and solve practice problems in over 30 different languages.

ProtonMail
Tutanota
Gmail
Zoho Mail
Microsoft Outlook
FastMail
eclipso Mail Europe
Web- and IMAP-based email service. 2GB cost 1€/month.

Which is more popular?
Based on our record, Exercism seems to be a lot more popular than Posteo. While we know about 318 links to Exercism, we've tracked only 16 mentions of Posteo.
Website, pricing, platforms and company facts side by side.
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| Website | exercism.org | posteo.de |
| Pricing | — | |
| 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
Individuals seeking a privacy-focused, ad-free email service; users who prioritize environmentally friendly companies; those who prefer a straightforward and reliable email provider with robust security features.
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


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


What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
Exercism is the alternative to LeetCode learning platform, with over 4000 activities in up to 52 popular programming languages. It is very different from other comparable programming websites in that it emphasizes...
Exercism is a coding challenge website that offers 3100+ challenges spanning 52 different programming languages. After picking a language that you'd like to master, you tackle the coding challenges right on your...
Posteo is a privacy-focused, open-source email service based in Germany. It offers an inbox with 2GB of storage, a calendar app, and an address book all in one. Posteo is mainly focused on email privacy, message...
In a major blow to email privacy, a court ruled in 2019 that the private email provider Posteo can be forced to log user IP addresses for government agencies. Of course, this paves the way to even more logging and the...
Use Fastmail, Posteo, Mailbox, or any similar service where you actually pay $1-$3 per month and in return get a completely ad-free spam-free wonderful email experience.
Recommendations tracked on public social media and blogs since March 2021.


Exercism.org structured deliberate practice, no AI required. - Source: dev.to / 5 months ago
Providing free coding exercises and mentorship, Exercism helps developers practice and improve their programming skills step by step. Their Python Track offers a series of exercises that guide learners from beginner to more advanced levels. - Source: dev.to / 8 months ago
Exercism is a code practice + mentoring platform in 74 languages. Why it can work: although it is not exclusively focused on groups of five, its mentoring and peer review model allows forming mini-circles where participants give each... - Source: dev.to / 10 months ago
> Not sure where to look now. Maybe take a look at https://posteo.de/en. - Source: Hacker News / 12 months ago
Ah, whoops, based on that logo, I mistook this for a "Version 2" release of the venerable https://posteo.de/en What advantages does this have over just running RoundCube myself? The things listed on the pricing page seem fairly superficial. - Source: Hacker News / over 3 years ago
I have been using https://posteo.de/en from many years now. They are ad free, secure and an affordable alternative. Their web interface is poor but not a problem for me as I use email clients on all my devices. - Source: Hacker News / almost 4 years ago
When comparing Exercism and Posteo, you can also consider the following products.

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Secure email with absolutely no compromises. Get your free encrypted email account today.
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Treehouse is an award-winning online platform that teaches people how to code.
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Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
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