For travelers
Get useful phrases before the trip
Build a practical phrase bank for hotels, restaurants, directions, and emergencies, then hear and repeat the words until they feel familiar.
7 Focused Tools · 15 Languages · Beginner to Advanced
Serious language practice
Serious language practice
for adults
Outgrown game-like apps? Spend a focused few minutes recalling, reading, speaking, listening, and reviewing at your chosen level. Save the words that matter and bring them back through spaced review.
Free for iPhone and Android · Eligible new annual subscribers get a 7-day free trial
See it in 90 seconds
Made with VideoBud
Watch Science Based Learning in action
See phrase practice, level-matched reading, voice conversation, grammar drills, translation feedback, and vocabulary review in the mobile app.
The Scientific Method
Our approach isn't just effective—it's proven. We combine three pillars of cognitive science with AI-generated infinite content so you never run out of fresh material at your level.
Spaced Repetition
A practical interval ladder brings vocabulary back after increasingly longer gaps, helping repeated recall move knowledge toward long-term memory.
Active Recall
Every tool forces your brain to retrieve information — translating, speaking, answering. This strengthening of neural pathways is the key to true mastery.
Consistency Tracking
Set daily goals, build streaks, and watch your vocabulary grow. Visual progress feedback turns learning into a habit you actually keep.
Choose Your Learning Path
Start with the tools that match why you are learning, then let the app adapt every lesson to your language and CEFR level.
For working professionals
Practice the vocabulary your work actually needs
Create custom books for your field, read level-matched articles, and save every new term for spaced-repetition review.
For students
Turn classwork into active recall
Use translation feedback, tense drills, and CEFR-calibrated reading to reinforce grammar instead of only recognizing answers on a worksheet.
For conversation builders
Move from study mode to speaking mode
Practice pronunciation, ask questions in Professor Mode, and keep vocabulary moving from short-term recognition into long-term fluency.
7 Powerful Learning Tools
Each tool targets a different skill — reading, speaking, grammar, vocabulary, translation — so every session is fresh and effective.
Interactive Library
Browse 9 curated, thousand-item phrase books covering common words, phrases, verbs, nouns, and more. Want something specific? Request a custom book on a topic that matters to you.
Reading Lab
AI generates fresh articles matched to your CEFR level on topics you care about. Tap any word to see its translation and add it to your vocabulary — reading and vocabulary-building in one flow.
Language Partner
Have real voice conversations with AI in three modes: Repeat for pronunciation, Conversation for free-flowing practice, and Office Hours to ask any language question.
U Translate
AI generates a paragraph in English. You translate it sentence by sentence into your target language. Get instant, detailed feedback on every attempt — grammar, word choice, and natural phrasing.
Testing Tenses
Language-specific grammar drills that target exactly what's hard: Spanish subjunctive, Japanese politeness levels, German cases, French passé composé — each language gets exercises tailored to its unique challenges.
Trivia
Spin the wheel and answer trivia questions across 8 categories — all in your target language. A fun way to build reading comprehension and learn cultural knowledge while practicing vocabulary.
My Vocabulary
Save useful words from supported activities, then review them with spaced flashcards, example sentences, mnemonics, and audio. This is where short-term encounters get repeated practice.
Your Learning Journey
Get started in under a minute. The app adapts everything to your level from day one.
1
Choose a Language
Pick from 15 languages
2
Set Your Level
CEFR A1 to C2
3
Set Daily Goal
5, 10, 15, or 20 min
4
Practice Daily
Use any of the 7 tools
5
Build Vocabulary
Save useful words as you go
6
Track Progress
Streaks, stats & mastery
What Makes Us Different
This isn't another flashcard app. Here's what sets ScienceBasedLearning apart.
Infinite AI Content
Never run out of material. AI generates fresh articles, exercises, and conversations every time — so you're always learning, never repeating.
Tap-to-Translate Everywhere
In every tool, tap any word to see its meaning and save it to your vocabulary. Every interaction builds your word bank automatically.
CEFR-Calibrated (A1–C2)
All content — reading, grammar, conversation — is precisely matched to your level. As you improve, the difficulty scales with you.
Voice Conversations with AI
Practice speaking with an AI language partner that listens, responds, and corrects you — like a patient tutor available 24/7.
Professor Mode
Stuck on a grammar rule? Activate Professor Mode from any screen for an instant, clear explanation — like having a tutor on speed dial.
Custom Books on Any Topic
Want to learn medical Spanish or cooking vocabulary in French? Ask the AI to generate a complete phrase book on any topic you choose.
Supported Languages
Master these major world languages with our evidence-based system.
🇨🇳 Chinese
🇳🇱 Dutch
🇫🇷 French
🇩🇪 German
🇮🇹 Italian
🇯🇵 Japanese
🇰🇷 Korean
🇳🇴 Norwegian Bokmål
🇵🇱 Polish
🇵🇹 Portuguese
🇷🇺 Russian
🇪🇸 Spanish
🇸🇪 Swedish
🇹🇷 Turkish
🇺🇦 Ukrainian
The App Experience
Built for speed, designed for daily habit-forming learning sessions.
Your Dashboard
Track daily goals, streaks, and access all 7 learning tools from one place.
Tap-to-Translate
Tap any word in any tool to translate it and add it to your vocabulary for spaced-repetition review.
Frequently Asked Questions
Features & Tools
The Reading Lab uses AI to generate fresh articles matched to your CEFR level on topics you choose. While reading, you can tap any word to see its translation and instantly save it to your vocabulary for spaced-repetition review.
Language Partner lets you have real voice conversations with AI in three modes:
- Repeat Mode — Practice pronunciation by repeating phrases
- Conversation Mode — Free-flowing dialogue on any topic
- Office Hours — Ask any language question and get a detailed explanation
AI generates a paragraph in English. You translate it sentence by sentence into your target language. After each sentence, you get instant detailed feedback on grammar, word choice, and natural phrasing. It's one of the most effective active-recall exercises in the app.
Yes! You can ask the AI to generate a complete phrase book on any topic — medical terminology, wine vocabulary, sports, cooking, tech jargon — instantly created at your CEFR level.
Professor Mode is available from any screen in the app. Activate it whenever you're confused about a grammar rule, verb conjugation, or usage question. You'll get a clear, detailed explanation tailored to your level — like having a language tutor on speed dial.
Save useful words from supported activities into My Vocabulary. Vocabulary cards can include example sentences, mnemonic memory aids, audio, and spaced review. The current review schedule uses a practical interval ladder: successful reviews return after progressively longer gaps, while missed material comes back sooner.
Getting Started
ScienceBasedLearning is an AI-powered language learning app that combines cognitive science (spaced repetition, active recall) with 7 interactive tools — from voice conversations to grammar drills to AI-generated reading. Available for iPhone and Android with support for 15 languages at CEFR levels A1 through C2.
Open the app, choose one of the 15 supported languages, select the closest CEFR level, and set a daily goal. You can finish setup without buying Pro and change your language, level, or goal later in Preferences.
The app takes you through language, level, daily-goal, preference, and optional Pro choices, then opens the learning tools. No email verification is required. If you separately request a website resource, that email flow does not control app access.
No. The iPhone and Android apps use a locally generated anonymous ID and do not require an SBL email, password, or Google sign-in. An optional website account is separate and does not sync app progress.
We currently support 15 languages: Chinese, Dutch, French, German, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, and Ukrainian.
CEFR is an international proficiency framework from A1 (beginner) to C2 (highly proficient). Choose the closest level during setup. Reading, grammar, translation, and other generated activities use that choice when supported; conversation guidance may use broader beginner, intermediate, or advanced bands. You can change your level in the app.
The Learning Paths section on our homepage helps you find the right starting point based on your goal. We highlight four common reasons people learn a language — travel (essential phrases and listening), work (custom vocabulary and reading), study (grammar drills and active recall), and conversation building (pronunciation and speaking practice). Each path points to the app tools most useful for that goal, but all seven study tools are available to any learner at any time.
The interactive study tools are available exclusively in the mobile app. Download it from the App Store or Google Play. The website provides product information, a blog, language-learning guides, and a learning-techniques library.
Pricing & Subscription
The free app lets you begin with the 1000 Common Words book, save a small vocabulary set, and try the other learning tools within the limits shown in the app. This gives you a meaningful way to test the method before choosing Pro.
Pro unlocks the full phrase-book library, a larger vocabulary collection, more frequent custom books, and expanded use of Reading Lab, Language Partner, U Translate, Testing Tenses, and Trivia. Use remains subject to reasonable technical and fair-use safeguards.
Open the app and go to Settings → Upgrade (or tap any "Upgrade" button). Choose monthly, yearly, or lifetime Pro and complete the purchase through the App Store or Google Play. Eligible new annual subscribers can receive a 7-day free trial; your store shows the current local price, renewal terms, and eligibility before confirmation. Billing is handled by Apple or Google, and Pro features unlock when the purchase completes. If Pro does not appear, tap Settings → Restore Purchases.
Support & Policies
The fastest way is the in-app contact form (Settings → Contact), the contact page on our website, or the contact form embedded on the homepage. You can also text or phone +1 978 522 6530 for quick questions (text preferred for short queries). We aim to respond to contact-form submissions within a few hours during business hours — phone/text responses are immediate when staff are available.
Need more details? Visit our Full FAQ Page.
Practice like an adult. Make the time count.
7 focused tools. 15 languages. Practice matched to your chosen level.
Download free. Eligible new annual subscribers get a 7-day free trial; local pricing and renewal terms appear in the app store.
