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

The SM-2 algorithm schedules reviews at the exact moment your brain is about to forget, moving knowledge from short-term to long-term memory — automatically.

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.

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 phrase books covering travel, dining, business, and more. Want something specific? Ask the AI to generate a custom book on any topic — wine, soccer, medicine — instantly at your level.

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 vocab-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

Every word you tap across any tool gets saved here. Review with spaced-repetition flashcards, AI-generated example sentences, mnemonics, and native audio. This is where short-term encounters become long-term fluency.

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

Words saved automatically

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 🇮🇩 Indonesian 🇮🇹 Italian 🇯🇵 Japanese 🇰🇷 Korean 🇵🇱 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.

Every word you tap across any tool is automatically saved to My Vocabulary. Each word comes with:

AI-generated example sentences
Mnemonic memory aids
Native audio pronunciation
Spaced-repetition scheduling (SM-2 algorithm)

Words appear for review right when your brain is about to forget them.

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 with support for 15 languages at CEFR levels A1 through C2.

Yes — you can sign in with Google. Tap "Sign in with Google" on the login screen. If this is your first time signing in with Google we will create an account for you using the Google email and profile. If you run into issues, contact support and include the email shown by Google.

We currently support 15 languages: Chinese, Dutch, French, German, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, and Ukrainian. More languages are added regularly.

CEFR (Common European Framework of Reference) is the international standard for measuring language proficiency, from A1 (complete beginner) to C2 (mastery). When you set your level, all content — reading articles, grammar drills, conversations — is automatically calibrated to match. You can change your level anytime as you progress.

Pricing & Subscription

The free version gives you access to explore the app and try all tools with daily limits. You can see how each tool works and experience the learning method before committing to Pro.

Pro removes all limits and unlocks the full power of the app:

Unlimited AI content generation
Unlimited voice conversations
Unlimited vocabulary saves
All grammar drill categories
Custom book generation
Full spaced-repetition features

Open the app and go to Settings → Upgrade (or tap any "Upgrade" button). Choose the monthly or annual plan and complete the purchase through the App Store. Billing is handled by Apple — once the purchase completes, Pro features unlock immediately. If Pro does not appear after purchase, tap Settings → Restore Purchases.

Support & Policies

The fastest way is the in-app contact form (Settings → Contact) or the contact form on our website. 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.

Stop Guessing. Start Mastering.

7 AI-powered tools. 15 languages. Content that adapts to your exact level.

Learn Any Language withAI + Science