FlowLingua: Bilingual Reader
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About this app
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.
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.
Your own books, made bilingual — interlinear, listening-reading & shadowing.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
What’s new
New: Import articles from websites – share a link, the text is extracted automatically (incl. title, language, level). Fixed: Crash on very heavy webpages.
App support
About the developer
TOMAS CHLADEK
support@flowlingua.com
Altkönigstraße 20
61169 Friedberg (Hessen)
Germany
