Comparison
Every Dictionary vs
Sider AI Dictionary
Both tools use AI to explain words — but they serve very different purposes. Sider AI Dictionary is a quick-lookup widget built into a browser sidebar. Every Dictionary is a dedicated vocabulary learning platform with flashcards, brainstorm mode, GIF visuals, and verb conjugations. Here's how they compare.
Last updated: March 2026. Pricing and features verified from public sources.
Quick verdict
Choose Every Dictionary if you want to actually learn words — with flashcards, brainstorm mode, synonyms, conjugations, and GIF visuals in one place. Choose Sider AI Dictionary if you just need a free, fast definition while browsing and don't need the learning tools.
Feature comparison
✅ Included · ❌ Not available · Sources: everydictionary.com/pricing, dictionary.sider.ai
Pricing
Every Dictionary
- Free$0 / mo — 10 credits/day
- Student$10 / mo — 100 credits/day
- Pro$20 / mo — 300 credits/day
Yearly billing saves up to 33%. Credits reset every 24 hours.
Sider AI Dictionary
- Free$0 — 30 queries/day
- Starter$4.20 / mo
- Pro$12.40 / mo
- Unlimited$16.70 / mo
Sider paid plans cover the full Sider AI browser assistant — not just the dictionary feature. As of March 2026.
Note: Sider's paid tiers unlock the full browser sidebar assistant (PDF chat, YouTube summaries, multi-model AI), not just dictionary features. If you only need a dictionary, the free tier covers basic lookups.
Where they differ
Vocabulary learning tools
Every Dictionary is built specifically for vocabulary growth. Every word search gives you synonyms, antonyms, verb conjugations, contextual examples, and GIF visuals — all in one screen. The flashcard system lets you save any word and flip through cards in review sessions, tracking what you know and what needs more work.
Sider AI Dictionary focuses on definitions and translations. It's designed for quick on-page lookups — highlight a word while browsing and get an explanation — not for building vocabulary over time. There are no flashcards, no review sessions, and no learning history.
Language support
Sider AI Dictionary supports 100+ languages for translations, which makes it useful for non-English speakers looking up a word in their native language. Every Dictionary is English-first, with deep AI tools optimized for English vocabulary — synonyms, conjugations, and contextual nuance work best in English.
Browsing integration vs. dedicated app
Sider's dictionary is part of a broader browser extension. If you spend time reading articles and want to look up words without leaving the page, the highlight-to-define workflow is convenient. The tradeoff: the AI dictionary feature feels secondary to the broader Sider AI assistant.
Every Dictionary is a standalone web app — you visit it intentionally, search a word, and get a comprehensive breakdown. The Brainstorm mode goes further, giving you definitions, synonyms, antonyms, GIFs, conjugations, and contextual examples all on one page. It's designed for learners who want to go deep on a word, not just get a quick definition and move on.
Who each tool is for
Every Dictionary is best for:
- Language learners building vocabulary
- Students preparing for exams (SAT, GRE, IELTS)
- Writers finding the precise word
- Anyone who wants flashcards + review sessions
- English learners wanting conjugations and context
Sider AI Dictionary is best for:
- Quick on-page word lookups while browsing
- Multi-language readers needing fast translations
- Users already in the Sider AI ecosystem
- Casual, infrequent word lookups (free tier)
Try Every Dictionary free
10 daily credits, no credit card required. Search any word and see the difference.