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一起作业 vs PhET
A factual side-by-side comparison of 一起作业 and PhET. We compare pricing, categories, free tiers and official websites — no invented scores.
Updated 2026-10-22
Quick take
Both 一起作业 and PhET are Freemium. Pick the one whose tagline and categories match your use case, then check the alternatives below.
| Pricing | Freemium | Freemium |
|---|---|---|
| Categories | Education | Education / Industry LLMs / AI Chat |
| Best for | AI speech scoring and auto-graded English homework for K-12 | PhET: AI Education powered by AI |
| Free tier | Yes — free or freemium | Yes — free or freemium |
| Website | www.17zuoye.com | phet.colorado.edu |