Alternatives
Products that do what Grokkoli – an individualized/adaptive math-tutoring web app does
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…
- 1SA
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
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- 4MO
2017 · mathcha.io
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- 6FM
2017 · freemathapp.org
- 7MA
2020 · mathematico.org
- 8IL
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/
2022
- 9MW
Hey HN check this really cool worlde-inspired project of a friend of mine. :)
2022 · mathle.bykiru.rocks
- 10WM
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
- 11TA
2020 · tafels.app
- 12AD
Hi HN, Last month, I have worked with my team here at Amy.app to make a stand-alone SAT Tutor. I'm pretty excited about this product, as it's our first attempt to make a stand-alone product targeted directly at students. So far all our products were targeted at teachers/schools/publishers. But we never found product-market fit ¯\_(ツ)_/¯ Our SAT-Math tutor is designed to find your knowledge gaps and gets you up-to-speed as fast as possible. We believe it offers a fresh approach on how online learning usually works. Please let me know what you think. The product has a 3 days…
2023 · sat.amy.app
- 13DA
2016 · github.com
- 14PF
Would love to hear the community's feedback on initial prototype of our online learning app - what would you like to see and NOT see in the full version! :)
2013 · skilldom.org
- 15IM
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
- 16IB
It's like a mix between Picross (Nonograms) and Polyominoes. It's a minimalist puzzler which has no text, no tutorials (none required) and no ads set in a relaxing environment. App Store: https://itunes.apple.com/gb/app/shapeuku-shape-puzzle-game/i... Play Store: https://play.google.com/store/apps/details?id=com.dtbgames.s... I have a bulk load of Android promo codes to give away, so if you'd like one let me know! (Sorry iOS users, I have no free codes left!)
2018
- 17AL
Hi HN, I have been studying languages as a hobby for a large portion of my life. Hence, I decided to create a spaced repetion app with the techniques that have helped me the most so far. It's aims to be made simple for the regular user to plug and play. I'd love to hear your feedback!
2025 · koshka.app
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Hi HN, I am a solopreneur in the evenings and a software engineer during the day. In the past, I have created lots of calculators for my web projects and freelancing friends. These were pretty basic, but users always welcomed them. I also used currently available builders, but the problem was that they were either slow, broke on mobile devices, had nonsense page view limits, or were expensive. Some even ticked all those boxes. So I have decided to create my own, with a simple interface, and called it Creative Widgets (if it ever takes off, I plan to add more exciting stuff like charts, etc,…
2024 · creativewidgets.io
- 20IA
It has been a while since I have shared my app, that I made to be able to practice my Danish while chatting with my grilfriend - I often used GPT to write as much as I can in Danish, and I replaced the words I didn't know with {Englis words in curly braces}. While this was great, it was rather annoying to type the prompt always, so I figured a GPT wrapper would work well here. Last time when I launched, it went viral! I was super happy (and grateful!) for all the feedback and excitement — but it also meant my tokens disappeared fast, and many people ended up trying an app that no longer…
Oct 2025 · menerdu.com
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I have had a few conversations in the past year with non-technical folks (traditional finance types, consultants) who asked for a simple explainer on how GPTs work. These people generally have the horsepower to grasp new concepts quickly but don't necessarily have the math background to dig in super deeply and want a stronger framework than "they predict words". I had generally been pointing them to Karpathy, Illustrated Transformer, and other youtube content but I figured something more hands on without the math requirement might be better at explaining questions like "why matrix…
Jun 2026 · understandgpt.xyz
- 22TA
Hey! I just launched TimeSlate.app — a completely free web app to help students stay focused and organized with zero friction. No accounts, no ads, no subscription What it does: - Pomodoro Timer - Task Manager – Tag tasks by subject, assign priorities, track progress. - Subjects - Revision Timetable – Block out your day visually with subject-based time blocks. - Dashboard – See time spent, tasks completed, Pomodoros per subject/day. It’s built for students, self-learners, or really anyone trying to structure deep work time without distractions. Why I made this: Every productivity app I…
2025 · timeslate.app
- 23IM
Hi HN, I recently got the AnkiMobile app for iOS for Mandarin. It was buggy and feature-lacking in my opinion, so I made a nice looking Anki-compatible alternative app, with more features. It uses a tuned FSRS5 algorithm and supports image occlusion out of the box. You can import your existing Anki decks into it or create a new one. Pretty quick to add cards with the image feature. I'm using it right now and will add more to it so let me know what you think. FYI, it has a one-off purchase of $14.99 to unlock it for lifetime (no taksies backsies) after a test period of seven days.
Dec 2025 · apps.apple.com
- 24IM
Hi, Sometimes I want to wrap an existing website into an Android app quickly so I made a service that does just that https://html2apk.com/ If you find it useful I'll be happy to hear about that, if you have any other comments/suggestions I'll be happy to hear about that too. 10x, Gilad
2019
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