A structured course with adaptive review
Learn languages the way memory works.
Always know what to learn next. Recall useful words and phrases in context, then review them before they fade.
Start with up to 100 words and phrases in active learning per target language. Reviews of unlocked material stay free.

Course guidance + memory practice
Move forward without forgetting what came before
Parolu combines a guided language course with serious memory practice.
Follow a clear path
Lessons build practical abilities in a useful order, so you do not have to decide what to study next.
Recall it yourself
Type words and phrases inside meaningful sentences instead of only recognizing them from choices.
La profesora nos ___ a participar en el proyecto.
Review what needs work
Difficult material returns sooner. Stable material waits longer while you continue through the course.
1m
Again
8m
Hard
4d
Good
12d
Easy
One connected learning cycle
See how a lesson works
1. Goal
Know the goal
Preview something practical you are learning to understand or express.
2. Recall
Practise the language
Meet useful words and phrases in context, then type them from memory.
3. Review
Understand and remember
Inspect the sentence, translation, audio, and feedback. Parolu schedules the next review and shows what comes next.
Precise feedback
It knows the difference between wrong and almost right
Not every unexpected answer means the same thing. Parolu handles harmless typing differences locally and can explain contextual alternatives, grammar mistakes, and near-correct answers when the distinction matters.
You get help with the answer in front of you—not an open-ended chatbot distracting you from the course.
Expected
animó
Your answer
anima
Right meaning, wrong tense
Use the preterite “animó” for a completed action in the past. Correct the sentence before moving on.
A path that adapts to you
Start in the right place. See where you are going.
Complete beginners can start from the first lesson. Learners with prior knowledge can take an adaptive placement test based on real course material.
Then Parolu keeps the path clear:
- what to learn now
- what to review today
- what you can already do
- what comes next
Install Parolu on mobile or desktop and continue practising downloaded material offline. Reviews sync when you reconnect.
Starting point
Use the placement test
A short adaptive check finds the earliest useful area of the course.
Your course
Spanish for English speakers
Current ability
Give advice and encouragement
Reviews today
12
Up next
Express support
Next milestone
Solve problems together
The Parolu Method
Designed for durable learning
Parolu combines useful language selection, meaningful context, active retrieval, focused feedback, and distributed practice inside a structured course.
Its design is research-informed, including principles associated with Paul Nation’s work on vocabulary learning and balanced language development.
Simple pricing
Start free. Upgrade when you want to keep moving.
The free plan lets you experience the real course and keep reviewing everything you unlock.
Free
€0
Start a course and keep up to 100 words and phrases in active learning per target language.
- Course lessons and standalone decks
- Typed recall, audio, and precise feedback
- Adaptive reviews
- Unlimited review of unlocked material
- Already-known items do not use the limit
Premium
€9 / month
Remove the active-learning limit and continue through complete courses.
- Keep adding new course and deck material
- Continue beyond the 100-item free limit
- Choose monthly or yearly billing
- Manage the subscription through Stripe
FAQ
A few things worth knowing
Is Parolu a course or a flashcard app?
Parolu is course-first. Lessons build practical language abilities in a clear sequence. Typed recall and adaptive review help you remember the words and phrases each lesson teaches.
Is Parolu suitable for complete beginners?
Yes, where a beginner course is available. Learners with prior knowledge can start from the beginning or use the adaptive placement test.
Does Parolu teach speaking?
Parolu focuses on vocabulary and phrases, contextual comprehension, typed recall, audio exposure, reading reinforcement, and durable memory. It should complement real listening, reading, speaking, and writing.
What happens when I reach the free limit?
You can keep reviewing everything already unlocked for free. Premium lets you add new material and continue through the course.
Is Parolu based on language-learning research?
Parolu is research-informed. Its design draws on useful language selection, meaningful context, active recall, focused feedback, spaced practice, and balanced language development.
Can I use Parolu offline?
Yes. Downloaded material can be practised offline and reviews synchronize when you reconnect. AI-only feedback may be unavailable without a connection.
How does Parolu compare with Duolingo?
Duolingo is a strong choice if many languages, varied exercises, and game-like motivation based on points, badges and ranks are your priorities. Parolu is deliberately calmer and more course-first: it organizes language around practical communication goals, regularly asks you to type answers from memory, explains valid alternatives and grammatical errors in context, and schedules each word or phrase according to your memory. The result is less focus on points and streaks, and more on what to learn, why an answer works, and when to review it.
How does Parolu compare with language flashcard apps like Clozemaster or Lingvist?
Clozemaster and Lingvist are useful for high-volume advanced vocabulary practice. Parolu goes further: it decides not only when to review an item, but why it belongs at that point in a coherent course. Content is sequenced by communicative usefulness, teachability, reusable patterns, and deliberate recycling—not word frequency alone. Lessons connect a practical goal with meaning, audio, sentence context, typed recall, short reading, precise correction, and adaptive review. AI-assisted evaluation can accept valid alternatives and explain near misses, while the placement test helps you avoid material you already know. That makes Parolu better suited as a primary learning path, not just a vocabulary supplement or collection of cards.
Why is it called P̃arølŭ?
Parolu means “Speak!” in Esperanto. Naming the product after a major national language would tie it to one particular culture, while Parolu is for learners everywhere.
Strictly speaking, perhaps it should be called Krokodilu. In Esperanto circles, krokodili means slipping into a national language when everyone is supposed to be speaking Esperanto. But that joke would require our learners to know rather more Esperanto than we can reasonably expect.
Parolu is short, memorable, and gives us some excellent diacritics to play with—even if Esperanto would never spell it quite like this.
A calmer way to keep progressing
Know what to learn next. Remember what you have learned.
Parolu gives you the course, the practice, and the review schedule.