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"I Know It" is an online game for practicing primary-level math concepts.

Claude Code
Cursor
Google Antigravity
warp by spolu
GitHub Copilot
Codex 3.0 by OpenAI
Zed
The AI coding agent, built for the terminal.

Which is more popular?
Based on our record, opencode seems to be a lot more popular than I Know It. While we know about 73 links to opencode, we've tracked only 1 mention of I Know It.
Website, pricing, platforms and company facts side by side.
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| Website | iknowit.com | opencode.ai |
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What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


No analysis of I Know It yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
I Know It Review
OpenCode: FASTEST AI Coder + Opensource! BYE Gemini CLI & ClaudeCode!
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using I Know It and opencode. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


For supplemental math, try “I Know It” iKnowIt.com. There are cute cartoon animations for kids, and hundreds of review math lessons/skills/topics. Source: over 4 years ago
You can check out Muse Spark 1.3 by using OpenCode (https://opencode.ai/ - open-source AI / coding harness). There's a terminal version and a GUI / desktop version. Good luck! - Source: Hacker News / about 1 month ago
[OpenCode IDE](https://opencode.ai/) (for the indexing part). - Source: Hacker News / about 2 months ago
What the person above is suggesting: * https://pi.dev/ * https://omp.sh/ Personally I also think that OpenCode is nice, their CLI version is enjoyable and their desktop/web version is mostly okay: * https://opencode.ai/. - Source: Hacker News / 2 months ago
When comparing I Know It and opencode, you can also consider the following products.

Learn the best online educational games for kids across different subject areas, including math, science, art, history and more.
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Transform hours of debugging into seconds with a single command. Experience coding at thought-speed with Claude's AI that understands your entire codebase—no more context switching, just breakthrough results.
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The site aims to cover the full Kindergarten to Year 12 curriculum.
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The AI-first Code Editor. Build software faster in an editor designed for pair-programming with AI.
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Tux, of Math Command, AKA TuxMath, lets kids hone their arithmetic skills while they defend...
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Google Antigravity - Build the new way
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