Dev tools · alternatives · 2026
24 alternatives to InteractivePrimer.com
Free “smart web pages” that teach maths, compsci & physics.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Interactive notes for algebra based physics with explorable explanations
2020 · landgreen.github.io · its alternatives →
- 2IM
Hi everyone! I’m the founder of Explanations (https://explanations.app). I’m building a website where students can get college level math & physics help for 1/10th the cost of private tutoring. You’d type a question, and your teacher replies by drawing a Youtube/KhanAcademy-style video; and this happens asynchronously throughout the week. When I was studying at MIT, I often had to wait 40-60 minutes in line just to get 5 minutes of “help” from a TA - when I needed 1-2 hours. I understood that TAs can’t spend all their time helping me. That’s understandable. But what made…
2024 · its alternatives →
- 3FM
Free and Open Source software for managing math homework. Students digitally record step-by-step math work. Teachers simultaneously review all assignments with complete solutions grouped by similar final answer. Grade faster and more thoroughly every day!
2017 · freemathapp.org · its alternatives →
- 4IW
Good math problems are hidden inside textbooks and online documents. To keep up with all the sources in the world is hard. For someone who just wants to continuously solve problems, finding and going through all the sources feels like a hassle. I wished for a website that could just dump all the math problems available in the world out there. And if I could filter the problems by topics, that would be beautiful. teachyourselfmath is a side project that was born out of this need. At its core, it is a math PDF extraction engine. The engine has some machine learning going on behind the scenes…
2024 · teachyourselfmath.app · its alternatives →
- 5
- 6AI
2023 · x0axz.com · its alternatives →
- 7
- 8
- 9
Learn math and science with interactive visual explanations
Mar 2026 · openai.com · its alternatives →
- 10
Quick Math▲112Perfect for students to improve their math abilities
2016 · apps.apple.com · its alternatives →
- 11
Build real-time interactive virtual classroom with ease
2021 · github.com · its alternatives →
- 12
Free course on how the world works from the YouTube star.
2015 · its alternatives →
- 13
- 14
Interactive experiments on Physics and Math for K-12 program
2021 · inventic.tech · its alternatives →
- 15EZ
Expii is a free personalized learning website with thousands of math and science lessons, providing diverse ways to learn each topic, through interactive explanations and video.
2015 · expii.com · its alternatives →
- 16
- 17
- 18YF
Cut to the chase: https://www.youtube.com/watch?v=4nyzl3pVXp4 I really am a big supporter of quality education being available for everyone, and because of that I've opted to open source my CS education on YouTube. I'm starting with Rails, and I will eventually work around to more core CS topics like circuits -> logic gates -> binary -> assembly -> c -> Data Structures -> Algorithms etc. If you like it subscribe and I'm looking for all the feedback I can get on how to make it better :)
2015 · its alternatives →
- 19
Search Interactive Maps to Learn Anything
2018 · learn-anything.xyz · its alternatives →
- 20
- 21
Discover Mathigon, the Mathematical Playground. Learning mathematics has never been so interactive and fun!
2019 · mathigon.org · its alternatives →
- 22
- 23
Build your mental math skills with free online practice, step-by-step strategies, and a daily challenge. Start a quick round with Mental Math Pro.
2024 · mentalmathpro.com · its alternatives →
- 24
Hi HN, we’re building deriveit.org, the website where you can learn any topic, quickly. On our website, you pay to ask any physics, computer science, or math question, and our community competes to give you the best explanation (for a cash reward). Right now, resources with high quality content are a time drain (papers, textbooks, and courses). We think that material is typically written in an unnecessarily hard-to-read way, but that there are tons of people who are passionate about explaining it well to others. We want to give the world access to those people, and remove barriers for them…
2023 · deriveit.org · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →