Source-backed analysis8
Review basis
Research-based review: the AppDuo Editorial Team compiled it from official pages, documentation, app stores, press and user feedback, without hands-on testing. Every claim links to a source with the date it was checked.
8 reference sourcesInformation updated Nov 12, 2026
How we review
S English Review
English practice through dictation, shadowing and AI speaking
By AppDuo Editorial Team · Fact-checked
- Web
- iOS
- Android
- Browser extension
On this page
Decide at a glance
Our verdict
S English bundles dictation, shadowing, AI speaking practice and vocabulary in one app with a free tier, suiting learners who want listening and speaking drills on real videos. It is new, public ratings are few, and the website's paid prices differ slightly from the in-app prices.
Best for: Learners who want dictation and shadowing practice on YouTube videos
Skip it if: People who need a structured course or live tutoring
Pros
- Dictation, shadowing, AI speaking, spaced-repetition vocabulary and a dictionary in one app
- Web, iOS, Android and Chrome/Edge extension, with progress tied to one account
- 4.84/5 on the App Store from 31 ratings
Cons
- No dedicated pricing page; the FAQ's QR-code prices (100,000 VND/month) differ from the in-app prices (99,000 VND/month), and the terms cover only App Store and Google Play billing
- The homepage cites a 5.0 Chrome Web Store rating and 100,000+ learners, while the extension listing shows 4.5/5 from 8 ratings and 2,000 users and Google Play shows 500+ downloads
All pros and cons · Who is it for?
More pros
- Policy states voice recordings are kept at most 30 days and allows in-app account deletion
More cons
- App Store reviews include complaints that AI voice recognition is weak and that AI errors are frequent on the web version
- Privacy declarations differ between the App Store (no data collected) and Google Play (some data types may be collected)
Best for
- Readers who want instant word lookup in a browser extension while browsing
Experience & key features
What S English is
S English is an English-learning platform from individual developer Dat Nguyen, available on web, iOS, Android and as a browser extension. The app was released on the Vietnam App Store in May 2026. Learning centres on real YouTube videos: type back each sentence, mimic native speakers and get AI pronunciation feedback.
Beyond dictation and shadowing, the app has topic-based AI conversation, spaced-repetition flashcards, an English-Vietnamese dictionary and progress stats. Version 1.3.0 added Sila, an AI tutor to ask during practice, and a new dictionary with UK and US audio. The website also lists AI writing-feedback pages for IELTS, TOEIC and VSTEP.
Pricing and value
The website says you can start free with no card. On the Vietnam App Store, Premium costs 99,000 VND/month, 199,000 VND/3 months and 599,000 VND/year. The website FAQ instead quotes 100,000, 200,000 and 600,000 VND paid by QR code, while the terms only cover App Store and Google Play billing, including auto-renewal and refunds. There is no dedicated pricing page, so check the price and renewal terms at checkout.
Who it suits
It suits learners who want listening, speaking and vocabulary practice in one place, especially through video. Compared with speaking apps such as ELSA Speak or Speak, S English adds dictation and a browser lookup extension, but it is new and has no independent evaluation yet. Those who need a structured curriculum or a teacher should look elsewhere.
Screenshots
Plans & pricing
Prices last verified Nov 12, 2026
Free
PersonalFree
For the browser extension, the website lists AI dictionary lookup, unlimited AI translation and up to 50 saved words.
Premium
Personal₫99,000/mo
₫49,917/mo billed yearly
Vietnam App Store in-app prices: Premium Monthly 99,000 VND, Premium 3 Months 199,000 VND, Premium Yearly 599,000 VND. The website FAQ quotes QR-code prices of 100,000 VND/month, 200,000 VND/3 months and 600,000 VND/year. The site says one subscription unlocks both the app and the extension but publishes no detailed list of Premium features.
- Free plan limits
- The app is free to download and try; the app's own free-tier limits are not published, only the browser extension's limits.
- Free trial
- No free trial
Cancellation & refunds
The terms say refunds are handled by Apple or Google under each store's policy, not by S English. No refund policy is stated for the QR payments mentioned on the website.
Privacy
Per the policy (updated 18 October 2026), the app collects name, email, a user ID, voice recordings (processed and deleted within 30 days), learning progress and subscription data reconciled through RevenueCat. The developer says it does not sell data or use it for advertising, and lets users delete the account in the app. The App Store listing declares no data collected, while Google Play lists several data types that may be collected; the two declarations differ.
S English alternatives
8.1/10Corodomo
Video-based language learning with 1:1 AI shadowing coaching and speaking practice
7.8/10Duolingo
Bite-sized daily language lessons with streaks and leaderboards
Controversies & incidents
Issues documented by the press, regulators, courts or the vendor itself. Every item is sourced; unproven claims are labelled as allegations. Last researched: Nov 12, 2026
No significant controversies or incidents found in the sources we checked.
Frequently asked questions
Is S English free?
The app is free to download and has a free tier. Premium on the Vietnam App Store costs 99,000 VND/month, 199,000 VND/3 months and 599,000 VND/year; the website FAQ quotes 100,000, 200,000 and 600,000 VND when paying by QR code.
How do refunds work?
Per the terms, Apple or Google handles refunds depending on the store you bought from, typically via reportaproblem.apple.com or Google Play's form. For unresolved disputes, contact [email protected].
How long are my voice recordings kept?
The policy says recordings are processed and deleted within 30 days, not used for advertising and never sold.
Which platforms does it run on?
Web, iOS (iOS 17 or later), Android, and extensions for Chrome and Edge.
Review evidence & sources8
Scores
- Ease of use
- 7.2
- Features
- 7.3
- Value for money
- 7.0
- Performance
- 6.4
- Support
- 6.0
- Privacy & security
- 6.6
Why this score
The developer describes a simple app that puts several practice methods in one place; the 4.84/5 App Store rating points to positive early feedback, though from only 31 ratings. The interface is in English and Vietnamese only.
Why this score
Covers dictation, scored shadowing, AI speaking, spaced-repetition vocabulary, a dictionary and a browser extension. Many features are new and no independent evaluation of the scoring quality was found.
Why this score
A free tier exists; Premium on the App Store costs 99,000 VND/month or 599,000 VND/year (about 49,917 VND/month). Points off because there is no pricing page, the website and app quote different prices, and Premium features are not clearly listed.
Why this score
No independent measurements. App Store reviews mention weak voice recognition and frequent AI errors on the web version, though the overall rating stays high; Google Play shows 500+ downloads.
Why this score
Only the [email protected] email and the legal pages were found; no help centre or chat.
Why this score
The policy is clear on voice data (deleted within 30 days), no data sales and in-app deletion. Points off because the App Store label says no data is collected, contradicting both the policy and the Google Play declaration, and the policy does not name its speech-processing provider.
What users say
- App Store (Vietnam)4.8/5 · 31
- Chrome Web Store (extension)4.5/5 · 8
Sources
- Vendor-providedOfficial homepage (EN)Nov 12, 2026
- Vendor-providedOfficial privacy policyNov 12, 2026
- Vendor-providedOfficial terms and conditionsNov 12, 2026
- Vendor-providedOfficial About pageNov 12, 2026
- storeApp Store listing (Vietnam)Nov 12, 2026
- storeGoogle Play listingNov 12, 2026
- storeChrome Web Store listingNov 12, 2026
- storeiTunes lookup API (App Store Vietnam)Nov 12, 2026
Specs & compatibility
- Developer
- Dat Nguyen
- Headquarters
- Vietnam
- Launched
- 2026
- Category
- Education
Capabilities
- AI features
- Mobile app
Platforms
- Web
- iOS
- Android
- Browser extension
Interface languages
- English
- Vietnamese
Integrations
- YouTube
- Chrome extension
- Edge extension
Support
Change history
- Update.Privacy policy and terms updated.
- Feature.Version 1.3.0 added the Sila AI tutor, a new dictionary and AI word explanations.
- Update.Chrome extension updated to 1.2.12; the store page says it was formerly named Sila and is now part of S English.
Full change history (4)
- Launch.The S English app was first released on the App Store.
About the author
Reviews & comments
Written by readers with a verified email address.
No reviews yet. Have you used S English? Share your real experience.
Reader reviews are counted separately and do not affect the Editorial Team’s score.
No comments yet. Be the first to share your experience.
Comments are readers’ opinions, not content from the AppDuo Editorial Team.