
explanations.app
Low-cost group tutoring made possible by blackboard videos
explanations.app launched on February 2, 2024 with 102 votes, #566 of 3,962 launches that month and more than 75% of that year's launches.
What it does
Directly ask for explanations about linear algebra, algorithms etc. from "youtube teachers". This combines the clarity of an in-person explanation with the efficiency of async communication, and is much cheaper - $10/month instead of hourly private tutoring.
Does a similar job
all alternatives →- IMI made a cheap alternative to college-level math & physics tutoring2024 · ▲391
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…
- ALA little notebook for learning linear algebra with Python2025 · little-book-of.github.io · ▲190



- ILI Launched a “Fun” Web App for Developers2022 · ▲35
I strongly believe that every developer is a teacher and likewise. Every time you are asked to help someone else understand your code, you’ll always be grateful to be able to share your own knowledge with others. Explain Code App is the place you can make this happen! I am eager to hear your thoughts on what I have put together so far. Would love to hear your feedback! Let me know if there are any other features you would like for this site, I’m open for ideas and would love the community feedback. Here is the link: https://www.explaincode.app/
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