Three steps from unknown word to lasting knowledge — without leaving the page you're on.
Encounter a word while browsing. Double-click or select it. Voiko appears instantly in a popup — no new tabs, no copy-pasting, no friction.
Not just a definition. You get pronunciation, a real example sentence, an analogy built to stick, ranked synonyms, and space for your own note.
Every saved word lives in your web dashboard. Practice through spaced review. Export to Notion or Obsidian and weave your vocabulary into your knowledge base.
Everything between encountering a word and owning it — in one lightweight tool.
Everything to start is free. Pro adds the AI depth and integrations that turn lookup into real learning.