Comparison

SubVi vs Language Readers

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SubVi

Enhance English language skills through interactive video learning. Features include subtitle translations, dictation exercises, speech recognition for pronunciation practice, and vocabulary building. Access content from your favorite YouTube channels with subtitles.

Highlights
  • Side-by-side subtitle translations
  • Dictation exercises for listening comprehension
  • Speech recognition for pronunciation practice
  • Vocabulary building and exercises
  • Video summaries for Ted and Ted-Ed
  • Access YouTube videos with subtitles
Features
Read full description

SubVi (Subtitle Video) project helps users learn English effectively with Dictation, Speech recognition, and Quizzes. Videos are sourced from subscribed YouTube channels. ## Features. - **Subtitle**: Watch YouTube videos with their subtitles and side-by-side translations. - **Quiz**: Test your understanding with short quizzes after watching a video (Only support Ted and Ted-Ed). - **Video Summary**: Read a summary of the video if you prefer not to watch it (Only support Ted and Ted-Ed). - **Dictation**: Listen to an English video clip and write down exactly what's being said. It's a highly effective way to improve English listening comprehension, as dictations force you to carefully consider every word and sound you hear. - **Speaking**: Practice speaking and pronunciation using speech recognition technology that converts your speech into text. After listening to an English video clip, repeat after the speaker, and the app will convert your speech into text for comparison. Your speech will be scored based on the Dice coefficient formula. - **Translation**: View side-by-side translations alongside subtitles while doing dictations and speaking exercises. The app supports translations in over 60 languages. - **Vocabularies and Exercises**: Take notes of new words (vocabulary, phrases, etc.) while doing dictations and speaking exercises, and practice with vocabulary exercises. - **Watch Videos from Your Favorite YouTube Channels**: Unlike other apps, this app allows you to watch videos from your favorite YouTube channels as long as the video has subtitles. - **Search Any Videos on YouTube**: Easily search for any videos on YouTube within the app. ## Terms of Service and Privacy Policy. By using this app, you agree to be bound by the following Terms of Service and Privacy Policy: - [Forever102 Terms of Service and Privacy Policy](https://forever102.com/terms-of-service-and-privacy-policy.html). - [YouTube Terms of Service](https://www.youtube.com/t/terms). - [Google Privacy Policy](https://policies.google.com/privacy?hl=en-US). ## Contact. - [Website](https://forever102.com). - [Email](admin@forever102.com). We appreciate all suggestions and comments from our users. Please feel free to give us any feedback, and if you enjoy our apps, consider leaving a review. > **NOTE**: All channels and videos are provided by the public third-party media service YouTube.

About

Language Readers

Features
Read full description

Other apps make you click. We let you read. FlowLingua is a bilingual reader that turns any foreign-language book into a bilingual book. Import your own books, articles, videos and audio — or start with the ready-made content in the library. Read and listen to foreign-language content as if it were your native language. Every word and every sentence is already translated — synced to the audio, with no clicking at all. No dictionary, no vocabulary drills, no loss of flow. It is the digital heir of the interlinear tradition — the bilingual books and parallel-text editions of Ilya Frank, but without the page flipping, and for any book you choose. ▸ WHAT FLOWLINGUA DOES • Automatic bilingual reading — the Birkenbihl method in its purest form: every word of your book sits right under the original, including grammatical structure. • Translated sentence by sentence — plus the natural sentence translation, so nothing stays unclear. • Synced to the audio — text and original audio run word by word together (karaoke principle). You train pronunciation, rhythm and listening comprehension. • Import your own content — EPUB, PDF, DOCX, YouTube videos and audio files are decoded and translated automatically. • Easy reading — a dedicated Birkenbihl mode for relaxed, uninterrupted reading. • Vocabulary tracking — unknown words come pre-marked; you remove the mark once you know them. • Shadowing & speaking practice — repeat sentences right after native speakers, with sentence repeat. • Learn offline — download content and keep learning anywhere. Progress syncs automatically. • 20 languages — from English, Spanish and French to less common languages. • Listening-Reading (L-R) without the three-window setup — one screen. ▸ HOW IT WORKS 1. Import — bring your own book, video or audio, or pick ready-made content. 2. Understand — everything is already translated, word by word and sentence by sentence. 3. Stay in flow — press play and let the audio guide you. The translation is there when you need it. ▸ WHO IS THIS FOR? • You want the books you actually care about as bilingual books — without flipping pages or clicking every word. • You want to read foreign-language books and understand them right away. • You know the Birkenbihl method and finally want a tool that decodes automatically. • You come from a reader where you have to click every single word — and you're done with the clicking. • You've drilled vocabulary and still never understood a real book. ▸ WHY FLOWLINGUA EXISTS I wanted to learn languages — but memorizing vocabulary and grammar put me off. So I researched how polyglots really do it: understand, don't memorize. That's why I built FlowLingua as an app. FlowLingua combines three proven input methods: the Birkenbihl method (decoding), Listening-Reading (listening and reading at the same time) and Comprehensible Input by Stephen Krashen (understandable content that interests you). ▸ SUPPORTED FORMATS EPUB · PDF · DOCX · YouTube · MP3 & audio files ▸ FREQUENTLY ASKED QUESTIONS Can I use FlowLingua as a bilingual book reader? Yes — import any EPUB, PDF, video or audio file and FlowLingua turns it into a bilingual book: original and translation together, word by word and sentence by sentence, synced to the audio. The library also has ready-made content to start with. Do I need prior knowledge? No. The word-for-word translation makes texts understandable even if you don't know a single word yet. How is this different from vocabulary apps? You learn with real books, videos and audio — not quiz exercises. Understanding comes first. Does it work offline? Yes, content can be downloaded. Stay in flow. Not in the dictionary. 7-day free trial. ▸ ATTRIBUTION Sample content “Daily Routine”: work by SpeakSmart Academy, licensed under CC BY 4.0 (creativecommons.org/licenses/by/4.0/). Translated and presented in FlowLingua. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SubVi4 screens
Language Readers4 screens

Verdict

The call

The clearest difference is update cadence: Language Readers at every 4 days against SubVi's fortnightly. SubVi's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SubVi sells 2 in-app purchases, starting at $0.99 per month and Language Readers sells 5 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SubVi ships an update fortnightly, Language Readers every 4 days. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
SubVi versus Language Readers: the parameters behind the verdict, then further details
ParameterSubViLanguage Readers
PriceFreeFree
Rating2.5 (4 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings4 — better—
Update frequencyFortnightlyEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size39 MB67 MB
Age rating4+4+
DeveloperTuan DuongTomas Chladek

In-app purchases

2 purchases

SubVi

Subscriptions2
  • Monthly subscription.$0.991 Month
  • Yearly subscription.$10.491 Year
5 purchases

Language Readers

Subscriptions5
  • Flow — Monthly7 Days trial$2.991 Month
  • Audio add-on — Monthly$2.991 Month
  • Power$8.991 Month
Show 2 more
  • Flow — Yearly7 Days trial$22.991 Year
  • Power$69.991 Year

Questions

Is SubVi free?
SubVi is free to download, with in-app purchases available.
Is Language Readers free?
Language Readers is free to download, with in-app purchases available.
Do SubVi or Language Readers have ads?
Neither SubVi nor Language Readers shows ads.
Which is updated more often, SubVi or Language Readers?
SubVi ships an update fortnightly, and Language Readers every 4 days. Most recently, SubVi was updated on November 2, 2026 and Language Readers on November 6, 2026.

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