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Verified Oct 22, 2026

ClaviSay

Verified Oct 22, 2026 Active
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Turns articles, PDFs, and videos into bilingual reading practice with saved vocabulary and quizzes.

language learningbilingual readingvocabulary builderchinese learningFreemium

Listed on EffectHub ·

Screenshot of the ClaviSay website
#1
clavisay.ai as we captured it — our own screenshot, not the vendor’s press image.

Pricing

Pricing model
Freemium

No figure is reachable: the website fails for everyone with a Cloudflare 1014 error, and the iOS app is free to download with any plan sold inside it.

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Overview

About ClaviSay

ClaviSay is a reading-based language learning tool for Chinese and English learners. You feed it an article, PDF, video, or web page, and it produces a bilingual version with inline explanations, letting you read real content instead of textbook dialogues. Words you look up get saved to a personal vocabulary list, and the app generates quizzes from that saved list for review. It ships as a Chrome extension, a web workspace, and an iOS app; an Android app is listed as coming soon. The company behind it, ETOILEE PTE. LTD., is registered in Singapore. The site does not publish a subscription price, though the apps themselves are free to download.

Platforms
Web · iOS · Chrome extension
API
Not confirmed
Last verified
Oct 22, 2026

Verified sources

  • clavisay.ai answers HTTP 403 with Cloudflare error 1014 (CNAME cross-user banned) to every request, and the www and app subdomains do not resolve (15 October 2026)clavisay.ai ↗
  • App Store listing: ClaviSay: Language Practice by ETOILEE PTE. LTD., free download, version 1.0.2, released 18 June 2026 and last updated 3 July 2026, seller URL clavisay.ai (15 October 2026)apps.apple.com ↗
  • Founder's Indie Hackers post of 16 June 2026 describes the product as early: article import, in-context AI explanations, saved vocabulary and short review sessionsindiehackers.com ↗
Fact check

Is ClaviSay legit?

We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.

Domain registered
Jun 1, 2026Registry record (RDAP), registrar Cloudflare, Inc, looked up Sep 21, 2026
TLS certificate
Issued by Google Trust Services, valid until Dec 26, 2026Seen in our own connection to the site on Oct 22, 2026
Last checked
Oct 22, 2026The site answered, but turned our crawler away
Operated by
ETOILEE PTE. LTD., SingaporeOur research, card verified Oct 15, 2026

How we collect these records

Editorial verdict

Pros & cons of ClaviSay

low confidence

A reasonable fit for intermediate learners who want to practise on real articles and videos rather than scripted lessons, with vocabulary saved and quizzed automatically. As of mid-October 2026, though, the website is down with a Cloudflare configuration error while the iOS app is still listed, so confirm the service is alive before paying for anything inside the app.

Pros

  • Works on real content you choose (articles, PDFs, video) instead of a fixed lesson bank
  • Automatically builds a vocabulary list and turns it into quizzes without manual flashcard creation
  • Available as a Chrome extension and web app plus a rated iOS app

Cons

  • No pricing published on the site, so cost can't be compared before creating an account
  • Android app is not yet available, only listed as coming soon

Best for

  • Intermediate Chinese or English learners who want to read real-world material
  • People who prefer learning vocabulary in context over flashcard apps

Not for

  • Complete beginners needing structured grammar lessons
  • Android users, until that app ships

Watch out: The marketing site returns a Cloudflare 1014 error to everyone, not just bots; if it stays down, the Chrome extension and web workspace may be gone too, leaving only the iOS app.

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