Data driven language learning

Start Talking Effortlessly

Harness the power of data science to master the fundamental patterns of your target language.

Based on millions of real-life sentences in the target language.
Master the base patterns that make up +90% of communication
Muscle memory, not memorization

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Try it free for 2 weeks. Paid plan begins after trial.

Available Languages

Access all of our languages with a single subscription.

Danish

Dutch

English

French

German

Italian

Norwegian

Polish

Portuguese

Spanish

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A small set of words and patterns comprise the majority of language use, but traditional materials often prioritize surprisingly rare words.

A data-driven approach keeps you focused on what matters.

Our Principles

Our system is based on a series of fundamental principles which are derived from research.

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The 90/10 Rule

90% of daily communication relies on only 10% of the words the average person knows.

Prioritizing this critical 10% is the surest and quickest path to fluency. If the average adult speaker knows about 35,000 words, a little over 10% of these words accounts for nearly 90% of all general language usage.

Data over Intuition

Traditional language learning materials often prioritize words and concepts that intuitively seem like they would be common, but which a data-driven approach shows are not actually in this critical 10%.

This approach slows progress compared to focusing first on mastering the words and patterns proven to be essential to most conversations.

Major Inflection Point

Mastering the relatively small portion of the language that accounts for 80–90% of usage is the most important inflection point in the language learner's journey.

It’s at this stage that learners can begin to comfortably engage with native content, rapidly accelerating their progress. Increased exposure to comprehensible real-world content deepens fluency without constant translation or structured study.

Muscle Memory over Memorization

Merely memorizing vocabulary lists and grammar rules will not make you fluent in a language.

True language proficiency comes from developing the muscle memory required to instinctively and naturally use linguistic patterns within their appropriate contexts.

Our Platform

Lingua Fortis is centered on two goals: prioritizing what you study by real-world frequency, and giving you powerful tools to practice it effectively.

Text Analysis

To assemble our course content, we begin by analyzing 4 - 5 million sentences in the target language, using a balanced mixture of sources.

Pattern Extraction

Next, we extract patterns—not just a list of common words, but statistically significant patterns—so you can build muscle memory for using them in context.

Spaced Repetition Courses

We then organize these patterns and add them to our spaced repetition courses, where you can practice them in context through interactive cards and add them to your muscle memory.

Rapid Sentence Exposure

Rapidly internalize natural speech patterns simply by listening and repeating sentences using the most common 30,000 words, helping you build fluency and confidence.

Data Center

A series of interactive frequency dictionaries that let you get deep practice with each word, including their various forms, and in context with a multitude of sample sentences.

Custom Courses PREMIUM

Create custom courses with your own cards, using the same spaced repetition system as our standard courses.

AI Tutor PREMIUM

Take grammar lessons, practice conversational scenarios, or simply have an open ended discussions to practice your conversation skills.

High Context Translator PREMIUM

There is always more than one way to say it. Get multiple translations of a text, each with explanations of their differences. Then add them to your custom courses to build muscle memory.

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Plan Comparison

Begin your 2 week free trial today!

Premium

$9.59/mo

Billed annually. $11.99/mo billed monthly.

Standard SRS Courses
Rapid Sentence Exposure
Data Center Frequency Dictionaries
Custom SRS Courses
AI Tutor
High Context Translator

Basic

$6.99/mo

Billed annually. $8.99/mo billed monthly.

Standard SRS Courses
Rapid Sentence Exposure
Data Center Frequency Dictionaries
Custom SRS Courses
AI Tutor
High Context Translator

Articles & insights

Check out our blog to read our language learning insights and get tips and tricks as to how to get the most out of Lingua Fortis