LingoBlend
Available on iOS & Android

Learn languages by reading what you love

LingoBlend uses AI to partially translate any text into your target language — picking words at your level, skipping ones you already know. Read articles, books, and more with just the right challenge.

17 Languages800+ Word Packs6 Game TypesVerb Conjugations
Blend Reader
The Little Prince

Once when I was six years old I saw a magnífica picture in a book about the selva called True Stories from Nature.

It showed a boa constrictor tragando an animal. In the book it said: “Boa constrictors swallow their presa whole, without chewing it.”

After that they are not able to moverse, and they duermen through the six months...

Blend40%

Everything you need to learn a language

Powerful tools working together to build your vocabulary and reading comprehension.

Unique to LingoBlend

Smart Blend

AI partially translates any text at your chosen percentage — handling idioms and phrasal verbs as whole expressions, never word-for-word. Tap any word for its grammar context, then save the base form or the exact form you encountered.

New

Blends That Know You

Tell us your level in one plain question, and blends pick words just beyond it — the research-backed sweet spot. As you learn, your real mastery takes over: words you know get skipped, words due for review come back inside your reading.

Spaced Repetition

5 Learning Games

Flashcards, Matching, Fill in the Blank, Listening Quiz, and Word Quiz — with native-quality pronunciation audio, Anki-style spaced repetition, plus an Immersive mode that tests you with images and audio only.

800+ Word Packs

Personal Dictionary

Build your vocabulary your way. Every saved word gets Related Words chips — family, synonym, confusable — plus a Because You Know suggestions rail, an A–Z ↔ Families toggle, and 800 curated word packs across 25 categories.

A1 to C2 + 12 classics

Graded Stories & Classic Books

Read stories matched to your level from A1 to C2, then move up to unabridged classics — Don Quijote, Les Misérables, Pride and Prejudice. Every word is tappable, books download for offline reading, and each one shows a % known badge for its vocabulary.

Share Extension

Save from Anywhere

See a word in Safari, an email, or any app? Use the Share Extension to save it to LingoBlend instantly — no context-switching needed.

OCR Powered

Photo Import

Point your camera at a menu, sign, or textbook. OCR extracts the text and imports the words directly into your dictionary with translations.

Pro Feature

Verb Conjugations

Tap any verb to see full conjugation tables with tenses tailored to your language. AI-generated with proper grammar for all 17 supported languages.

Stay Motivated

Streaks & Daily Goals

Set a daily practice goal and build your streak. Get smart reminders when you're about to lose your streak, and track your progress over time.

Science-Backed

Images & Memory Tricks

Link words to images from millions of photos, and add personal memory tricks. Dual coding makes visual recall 2-3× stronger, while the keyword method boosts retention by 1.5×.

Pro Feature

AI Word Stories

AI generates personalized stories using your saved words. Read in a paginated reader or listen with high-quality audio narration. Then answer comprehension questions to test understanding.

Vocabulary Graph

Reviews That Know Your Words

Review sessions keep easily-confused words like puerto and puerta apart, and Tricky Pairs lets you compare them once you know both. Fill in the Blank favors sentences where only the blank is new, and Practice estimates your vocabulary — roughly 320 words · A2.

Browser Extension

Save words while you browse the web

See an unfamiliar word on any website? Save it to your LingoBlend dictionary with one click. No copy-pasting, no switching apps.

Set how much to blend

Pick 5% to 100%, and the page you are reading swaps that share of its words into the language you are learning — as you scroll.

Click a word you cannot place

The original shows beneath it, with one click to save. Copy the page and the original words come back out.

Or read in the language itself

On a page already in your target language, highlight any word you do not know and right-click to save it. Works in either direction, and syncs to the app for practice.

Add to Chrome — Free

Also available for Edge, Opera, and Brave

wikipedia.org/wiki/Language_learning

Language acquisition is the process by which humans acquire the capacity to perceive and comprehend language. The word aprender means to learn or acquire knowledge through study or experience...

Copy
Search Google for "aprender"
Save "aprender" to LingoBlend
Saved: aprender → to learn

How Smart Blend works

Turn any text into a personalized language lesson in seconds.

STEP 01

Paste text in your language

Copy an article, upload a file, or enter a URL — in a language you already know. LingoBlend will mix in words from the language you're learning.

STEP 02

Set your blend level

Slide to choose how much to translate — from a gentle 10% sprinkle to an immersive 80% blend.

STEP 03

Read and learn

Highlighted words are in your target language. Tap any word to see its grammar context, tense, and meaning — then save it to your dictionary.

Why blending works: the science

Text blending isn't just clever — it's backed by decades of language acquisition research.

The most effective learning happens at i+1

Comprehensible Input (i+1)

Stephen Krashen, 1978

Language is acquired when learners receive input slightly above their current level. The blend slider gives you adjustable i+1 in real time — always the right amount of challenge.

Code-switched text boosts attention and memory

Code-Switching & Bilingual Processing

Recent cognitive science, PMC 2019

Research shows that mixed-language text captures greater attention and enhances vocabulary acquisition. Blending mirrors how bilinguals naturally process language.

9–18% vocabulary gains from reading in context

Incidental Vocabulary Acquisition

Nation, 1997 & meta-analyses

Learners acquire substantial vocabulary naturally through exposure to words in informative contexts — not through isolated memorization. Blended text makes this happen effortlessly.

And every other feature is backed by science too

Comprehensible Input (i+1)

Krashen, 1982

Language is acquired from input slightly beyond your level. Level-aware blending targets words just past your vocabulary frontier — the sentence you understand is the anchor, the blended word is the +1.

Spaced Repetition

Ebbinghaus, 1885

SM-2 algorithm in all 6 games schedules reviews at optimal intervals — up to 25% higher retention than massed study.

Active Recall

Testing effect research

Games force retrieval from memory, producing 51% better retention compared to passive review.

Contextual Learning

Vocabulary retention studies

Words encountered in rich, varied contexts through stories and sentences are retained significantly better.

Dual Coding Theory

Paivio, 1971

Words paired with images create two memory traces instead of one, making recall 2-3× stronger and more durable.

Keyword Method

Atkinson & Raugh, 1975

Linking new words to familiar sounds or personal stories creates deep encoding — 1.5× better recall than rote memorization.

Narrative Context

Language acquisition research

Words encountered in stories are retained significantly better than isolated lists — narrative provides meaning, context, and emotional anchoring.

Semantic Networks

Collins & Loftus, 1975

The brain stores words as a connected network, not a list. LingoBlend maps ~3,000 words per language into a vocabulary graph — families, synonyms, confusables — mirroring how your mental lexicon actually works.

Interference & Similarity

Tinkham, 1993; Waring, 1997

Studying look-alike words in the same session breeds lasting confusion between them, an effect long documented in vocabulary research. LingoBlend's review sessions keep confusable pairs like puerto and puerta apart while they're still new, then contrasts them deliberately in a Tricky Pairs view once both have enough review history.

Simple, transparent pricing

Start learning for free. Upgrade when you need more.

Free

€0forever

Perfect for getting started

Get Started Free
  • Unlimited word additions
  • 3 Smart Blends per month
  • Unlimited Basic Blends
  • 5 learning games
  • Image associations & memory tricks
  • Spaced repetition
  • Personalized blends & word recommendations
  • Vocabulary size & "% known" story badges
  • A1–A2 graded stories
  • 3 word list imports per month
  • 3 photo imports per month
  • AI Word Stories
  • Immersive flashcard mode
  • Advanced word packs
  • Verb conjugation tables
  • B1–C2 stories
Most Popular

Pro

€4.99/month

€49.99/year (save 17%)

For serious language learners

Start Pro
  • 100,000 Smart Blend words / month
  • All 6 learning games
  • Image associations + Immersive mode
  • Spaced repetition
  • All graded stories (A1–C2)
  • Unlimited photo imports
  • Unlimited word list imports
  • All 800+ word packs
  • AI Word Stories (Read & Listen)
  • Smart Blend with grammar context
  • Verb conjugation tables
  • Premium translations
  • Blend from file or URL
  • AI-generated sentences

Frequently asked questions

Text blending is LingoBlend's unique approach to language learning. You paste any text — an article, a book chapter, or a URL — and our AI partially translates it into your target language. You control the percentage: at 20% you'll see a few translated words sprinkled in, at 80% most of the text is in your target language. It's like a difficulty dial for reading.

Yes! The free tier includes unlimited word additions, 3 Smart Blends per month, 5 learning games with spaced repetition, A1–A2 graded stories, 3 photo imports per month, and 3 word list imports per month. Pro (€4.99/month or €49.99/year) unlocks unlimited Smart Blends, AI Word Stories, Immersive flashcard mode, advanced word packs, verb conjugation tables, all story levels, and more.

LingoBlend supports 17 languages: English, Spanish, French, German, Italian, Portuguese, Russian, Swedish, Hindi, Chinese, Japanese, Hungarian, Finnish, Indonesian, Turkish, Serbian, and Dutch. You can learn any language from any other — all 272 pair combinations work.

LingoBlend uses an Anki-style algorithm (SM-2) that schedules word reviews at increasing intervals based on how well you know each word. New words start with short intervals (10 minutes, 1 hour, 8 hours), then graduate to longer intervals (1, 3, 7, 14, 30, 60, 120 days). Combined with daily goals and streak tracking, this produces up to 25% higher retention than traditional study methods.

Each word in your dictionary has two memory boosters. First, tap "Add Image" to search millions of photos and pick one that captures the word's meaning — research on dual coding (Paivio, 1971) shows this makes recall 2-3× stronger. Second, add a Memory Trick — a personal note linking the word to something you already know (e.g. "pato" means duck and sounds like "pot," so picture a duck with a pot on its head). The keyword method (Atkinson & Raugh, 1975) shows this kind of personal association boosts recall by 1.5× compared to rote memorization. Once you've added images to at least 3 words, you unlock Immersive mode in Flashcards — you see only the image, then try to recall the word.

Yes! Free users can import up to 3 word lists per month from CSV files, plain text, or Anki-formatted exports. Pro users get unlimited imports. You can also use the Photo Import feature to scan foreign text with your camera, or browse pre-built word packs across 25 categories — beginner and intermediate packs are free, while advanced packs are Pro-only.

Word Story is a Pro-exclusive game that generates a personalized short story using your saved dictionary words, entirely in your target language. Choose Read mode for a paginated reader or Listen mode with high-quality audio narration and speed controls. After each story, answer 5 comprehension questions to test your understanding. Up to 20 stories per day.

Absolutely. Your data is stored securely in Firebase with strict access controls — only you can access your vocabulary, progress, and blended texts. We don't sell your data. See our Privacy Policy for full details.

LingoBlend is available on both iOS and Android. All features — Smart Blend, learning games, graded stories, spaced repetition, and more — work on both platforms.

Yes. At signup you answer one plain question — "How much Spanish do you know?" — and Smart Blend targets words just beyond that level (the i+1 comprehensible-input zone). As you save words and play the games, your measured vocabulary takes over from the self-assessment and keeps adjusting as you improve. You can change your level any time in Personal Details, and blends also skip words you have already mastered.

A knowledge map of each of our 17 languages: roughly 3,000 of the most useful words — selected from real usage frequency — connected by word families, synonyms, antonyms, confusable pairs, and topics, plus an index that resolves inflected forms to their dictionary form (so "despierta" counts toward "despertar"). Your saved words and review history place your personal knowledge on that map, computed on your device with no extra cost. It works behind the scenes and powers Smart Blend personalization — blends skip words you've mastered, boost words due for review, and favor new words connected to vocabulary you already know — plus, across the rest of the app: Related Words chips and word-family grouping in your dictionary, a Because You Know suggestions rail, review sessions that keep easily-confused words like puerto and puerta apart, a Tricky Pairs comparison view, % known badges on graded stories and book chapters, and a running vocabulary-size estimate.

It counts the words you've proven across spaced-repetition reviews — graduated out of the learning phase, not just anything you've saved — and collapses inflections into one dictionary entry, so "hablo," "hablé," and "hablando" all count once toward "hablar." That count pairs with a CEFR-style level (like "roughly 320 words · A2"), using the same machinery that personalizes your blends. It appears on Practice once you have about 15 proven words, and it's a floor, not a ceiling — it only measures vocabulary learned inside LingoBlend.

Start learning a new language today

Join LingoBlend and turn any text into a personalized language lesson. Free to start, no credit card required.