Alternatives
Products that do what Mathalon does
Community Based Problem Solving Website. Users from 18+ Countries are now registered. Would love to hear feedback on this.
- 1MO
2017 · mathcha.io
- 2
- 3MA
2021 · mathlingua.org
- 4FM
2017 · freemathapp.org
- 5CB
2021 · github.com
- 6SA
I am aged 11 and founder of https://sprout9.net/ a platform for students to find great tutors. Please forgive me if I get this wrong and post it incorrectly. I would like fellow hackers to give me some constructive feedback on my MVP please. Ideas and suggestions as how I can improve my version 1.0 and how I can get the word out so I can help many students as possible. Thanks alot! Azaan
2021
- 7MA
2020 · mathematico.org
- 8CL
2018 · littlelingua.eu
- 9MW
Hey HN check this really cool worlde-inspired project of a friend of mine. :)
2022 · mathle.bykiru.rocks
- 10MA
2019 · mathigon.org
- 11GA
Hi All - I'm Eric, and I’ve been working on a math-tutoring application that continually adapts to a child’s learning needs as they answer questions: www.grokkoli.com/beta (introduces new concepts in granular steps, figures out where/how learners might be confused & attempts to resolve it, speeds kids past the stuff they understand clearly, tracks their recall, answer-speed, and more). Currently in beta, looking for families with kids in grades 1-6 to beta-test. Especially interested in taking on families that are finding math to be a challenge. Happy to share more details if…
2021
- 12DA
2016 · github.com
- 13DC
Hi there! I'm building Diagrammatic, a simple and free online tool with the ambition to become a community for diagrams-as-code enthusiasts. Currently, it supports Mermaid, PlantUML, Dot (Graphviz), Vega-Lite, and Typogram, but I'm looking to add more languages. Please let me know if there's a particular one you use. I'd appreciate any kind of constructive feedback as well. Thanks in advance!
2024 · diagrammatic.com
- 14IM
Hi HN! In the last couple of weeks I've been working on Cranki: Cranki = Crosswords + Anki. (It's a stupid name tbh, haha) I like doing crosswords in Spanish (to learn vocab) but none of the apps out there allowed me to use my own list of words that I come across. So I built one instead. It's entirely client-side. No server, no database, no accounts, etc. Your words and stats are stored in local storage. I built this for myself but let me know if you like it!
Apr 2026 · cranki.app
- 15WM
Hi HN! We’re Devin and Aki. We made Pegasus to explore ideas on how to make learning more engaging. We were inspired by our own experience as students – we grew up being bored or disinterested with school, but found that friendly competition through our school’s math and science team was a great motivator for learning. Every day at midnight (PST), a new problem is released on pegasus.fm. As the first of many experiments we’re planning, we’d love to hear your feedback!
2023 · pegasus.fm
- 16AS
2011 · circleriot.com
- 17IM
I learned about the Monty Hall Problem recently. I thought it was so interesting it inspired me to make this small interactive website about it.
2024 · evanconway.github.io
- 187R
Awhile back I launched http://7courses.com on here to get some preliminary feedback. The reception was positive, but there were a few issues that had to be addressed. Mainly, the font, and the lack of a normal user system (limited to openID logins). This has been changed, along with a whole ton of other features which may or may not be immediately apparent. Either way, I think this project has come a long way, and hope you can find some use from it. http://7courses.com http://twitter.com/7courses 7courses is a central place where you can store and collect all your recipes. Say goodbye to…
2011
- 19AC
2016 · algebrarules.com
- 20MH
Hi Hn, A buddy and I worked on this prototype to see if we could design a system that helps people think creatively. I'd love your feedback, tips and pointers - and yes, I know it's a bit ugly (much css work to be done). Check it out at beta.monsterlumen.com and let us know what you think!
2013
- 21IM
Goal is to be kinda like The Economist meets Metaculus Just a quick MVP, would love to hear any feedback
2023 · baseratetimes.com
- 22IB
Hello all, I built about 2 years ago a coding website for kids, teens and adults: https://codeguppy.com Despite my efforts to promote the website it is still not well know. I post almost daily about it on Twitter at https://twitter.com/codeguppy ... but even there I don't have views. The website is fun... although I still have a ton of things to add. I appreciate if you take a look and suggest improvements and most importantly help me with spreading the news about this website. I really need a boost! Thanks all!
2021
- 23SA
Hi HN, This is ProofTree, and in TLDR: it is a platform where you can chat with an AI to do math, the way you already do, with context-awareness and knows how you personally do math, connected to the fora of other live human mathematicians. So, when you are talking to an AI about a proof at 3 am, and you need a human expert looking at it, or a discussion around it, like you do on StackExchange, this is it! You need an approved email account to use it, so please write here if you would live to try it out.
Jul 2026 · prooftree.ai
- 24MO
If AI got lucky or not, AI is surely going to assist in solving serious math problems. If you want to spend your resources/weekends contributing, this repository is full of math problems where you can add your thoughts (or proofs - for you Good Will Hunting type people) for others to build on it and we all together can try to change the world of math. I have already extended the research with manual proof of Jacobian Conjecture that was posted on Twitter (with attribution).
Jul 2026 · github.com
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