
LeetCode
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Project Euler is a series of challenging mathematical/computer programming problems that will...

Stocard
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Loyalty Card Keychain
Apple Wallet
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ConnectUpz
A Loyalty Card & Ticket Manager for Android

Which is more popular?
Based on our record, Project Euler seems to be a lot more popular than Catima. While we know about 415 links to Project Euler, we've tracked only 9 mentions of Catima.
Website, pricing, platforms and company facts side by side.
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What each product offers, as listed by its team.


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Recommended for
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Walkthroughs and reviews on video.
Project Euler Challenges 1–4 - Coding Challenges with Florin
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External articles and on-site reviews we used to compare the two products.


Project Euler provides a large collection of challenges in the domain of computer science and mathematics. The challenges typically involve writing a small program to figure out the solution to a clever mathematical...
If you are studying algorithms and computer programming, chances are you’ve heard of Project Euler. A collection of mathematical problems made for problem solvers who are interested to combine mathematics and...
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Recommendations tracked on public social media and blogs since March 2021.


Let's hope this is going to help me solve some more Project Euler [1] problems! [1] https://projecteuler.net/. - Source: Hacker News / 4 months ago
Https://projecteuler.net/ for "Thinker" brain food. (it still has the issue of not being a pragmatic use of time, but there are plenty interesting enough questions which it at least helps). - Source: Hacker News / 7 months ago
I have a Project Euler (https://projecteuler.net/) account. Though I do not register at all on the leader board I will sometimes work obsessively on a problem just to make one of the level icons light up for me. There is not really... - Source: Hacker News / 9 months ago
For anyone wanting to do something like this on an Android phone, there is Catima (on Google Play and FDroid), which supports many types of barcodes. https://catima.app/. - Source: Hacker News / almost 3 years ago
Catima — Loyalty Card Wallet (version 2.23.3): For your barcodes, memberships, loyalty programs, coupons and tickets. Source: over 3 years ago
There's an app that does this - catima. Its open source too. I added all my loyalty cards as well as my (local) healthcare card. Source: over 3 years ago
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