Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Not yet tested.
The store currently lists version 3.0.7, updated 2026-07-06.
Store screenshots supplied by the developer.
Build a bigger, sharper vocabulary in just 5 minutes a day.
Knudge helps you learn new words, remember them for good, and actually use them - with smart flashcards, word games, and spaced repetition trusted by millions of learners since 2016.
Most people forget new words within days. Knudge is built around the science of memory: spaced repetition and adaptive review resurface each word right before you'd forget it, so your vocabulary sticks for the long term - not just until the test.
WHO IT'S FOR
- Students prepping for the GRE, SAT, GMAT, TOEFL or IELTS
- Professionals who want to write and speak with more precision
- Anyone who loves words and wants to sound more articulate and confident…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
No review analysis published for this app.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
**What's New** * A brand-new referral experience is here! * Deep linking is now supported for a smoother referral journey. * Earn **25 credits** for every friend you refer. * Redeem your credits to unlock **Mini Courses**, **Smart Vocab** words, and more. Update now and start referring your friends!
Appworthy
vocabulary-builder-by-knudgeWhat the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
These are really on sale; we just can’t tell from the name whether they recur.
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.