“this app is so bad it can't teach you any english while you're speaking with AI the AI voice is so robotic and also sometimes mispronounce and it also use google mike means they don't even have their own mike and if I say hi they hear…”
Independent automated assessment · 3 signal sources · 455 reviews scanned · analyzed 2026-10-04.
Language Learning - Duo Speak
Visionary AISelf-improvement isn't a mood - it's a habit you show up for.
4.4 ★10,994 ratings
1M+Downloads
4+Age rating
—App size
Free · In-app purchasesIn-app purchases
About this app
Self-improvement isn't a mood - it's a habit you show up for.
The people who become fluent aren't the ones who study hard for one week; they're the ones who show up daily. Duo Speak is an AI language learning app built around short sessions and small wins, so leveling up your language skills becomes a habit you don't have to force.
App features of Duo Speak:
✨ AI Tutor Record your voice or type a message in the language you're learning and receive feedback from AI characters. Your message history is saved for every session, so you can look back and see your own progress.
💬 AI Chat Bot Tap the idea icon whenever you're not sure what to talk about, or bring your own topic. Record your voice or type your message and get an assessment of clarity and correctness, plus suggestions to help you improve.…
Preview
Real screenshots from the store listing.
Independent evidence report
Evidence and review signals
This is where the page changes from an app-store listing into an evidence report: findings, important reviews, pricing and a dated history.
Which version this describes
When we ran this analysis, and what the store lists now.
This analysis describes version 9.9 of the app, analyzed 2026-10-04 . The app may have changed since.
The store currently lists version 9.9, updated 2026-09-30.
What we measured
Each line is a measurement published as a measurement, never a verdict.
Each line is a measurement, published as a measurement. Where we have not looked, the line says so rather than reading as a zero.
Developer replies to reviews
Replies to at least 1 review in 20
Price in the store description
States no price and billing period
Cancelling, in the store description
Does not say how to cancel
Themes reported by reviewers
1 theme reported
Counted from the reviews we have read for this app. "No theme reported" means no theme reached our reporting threshold — it is not a finding that nothing is wrong with this app, and we do not say it is.
Five-star share of ratings
80–89% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.
In the package we scanned
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence about the app, not a finding about it.
Graded bands · predicate set 1.4 · how these are measured
What the analysis found
App-specific findings, grouped by what each one rests on. How they are graded lives on its own page.
Positive evidence 1
Things this app does right, published at the same strengths as the catch list.
Developer says data deletion can be requested
The developer's data-safety disclosure on the store states that users can request deletion of their data, or the app's own text offers a way to delete the account. This restates what the developer declares; it is not a test of whether deletion works. Apple publishes no equivalent disclosure, so on an Apple-only listing only the app's own text can support it.
What we saw: The developer's store data-safety disclosure states that data deletion can be requested; we have not seen a deletion control in the app's own text
One source only — shown, not confirmed 1
A single kind of evidence. We publish these because withholding them would be the bigger distortion, and we do not treat any of them as a finding we stand behind.
Reported by users: Aggressive ad load
Advertising volume or placement that interrupts normal use: ads between every action, unskippable or forced full-screen ads.
What we saw: Aggressive ad load: raised by 13 distinct reviewers (2.9% of 455 reviews scanned)
Highlighted reviews
Representative public review excerpts shown as user reports, not Appworthy audit evidence.
“I give Five stars because it is extremely good and help me a lot in learning English and increasing my fluency. But one bad thing is too much ads. It is requested to decrease the number of ads. All over, it is best for learning and…”
“my experience is very good but it was have too many ads by the way it was a very good app to to learn English you have to try it”
Assessment & version history
App changes and Appworthy events in one timeline.
Store listing updated to version 9.9.
What this app sells
Useful store-disclosed pricing, kept below the app listing.
Items shown0
Lowest—
Highest—
Google Play does not publish per-purchase prices.