Speaking Lab
Pronunciation feedback that names the next move
Every recorded answer gets clear, actionable scoring — what to keep, what to adjust, and which sound to drill next. No vague stars, no guesswork.
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Koydo LinguaLearn 20 languages with a complete fluency system.
Koydo Lingua combines accurate CEFR placement, guided lessons, real speaking practice, graded reading, bilingual music, and daily habit support — one connected path for learners from age 3 to adult.
20Languages
A1–C2CEFR range
3+Ages served
$0To start
Placement, practice, speech, reading, music, and progress — one path.
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What makes the learning stick
The method
Visual curriculum
One path from placement to fluency
Placement, guided lessons, reading, music, review, and progress maps connect into a single learning thread you never lose hold of.
Retention by design
Vocabulary that stays between lessons
Bilingual songs, graded readers, and spaced review keep words and sentence patterns active in the days between formal study.
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Why most language apps stall
The thesisA streak is not fluency. Most apps measure how many days you opened them — not whether you can hold a conversation.
Koydo Lingua is built around a different question: can the learner produce the language out loud, understand it in context, and remember it a week later? Every surface in the product answers to that goal. Placement establishes an honest CEFR baseline instead of dropping everyone at zero. Guided lessons teach patterns, not isolated words. The Speaking Lab forces production — you cannot finish a unit by tapping the right tile, you have to say it.
Comprehension and retention are treated as first-class problems. Graded readers and bilingual songs give learners real input at their level, so vocabulary arrives inside meaning rather than as flashcards in a vacuum. Spaced review then schedules each word and structure to resurface exactly when it is about to fade. The result is a curriculum that compounds: every lesson reinforces the last, and progress maps make that compounding visible.
Lingua is also deliberately age-flexible. The same engine serves a six-year-old meeting their first second language and an adult preparing for a C1 exam. The interface stays warm and international rather than locking into a single age aesthetic — because language is a lifelong skill, and the tool should grow with the learner instead of being outgrown.
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All 20 languages
The catalogA global catalog for young learners, teens, families, schools, and adult study goals — every language on the same complete fluency system.
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Who builds Koydo Lingua
The teamKoydo Lingua is built by the Koydo Lingua Team at KOYDO LLC. The team has been shipping educational software since 2018 and runs the Koydo learning engine that powers Lingua plus the other Koydo apps across 56 locales. The Lingua engine — CEFR placement, Speaking Lab, graded readers, bilingual music with karaoke alignment, spaced review — is the result of multi-year work on language pedagogy, on-device AI inference, and accessibility-first interface design. Reach the team via the contact links below or open an issue on the GitHub organisation.
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Questions, answered
FAQHow does pronunciation grading actually work?
You speak a target phrase, Lingua transcribes and scores it against native reference audio, then highlights the specific phonemes and stress patterns to adjust. Feedback is delivered in seconds, so the correction lands while the sound is still fresh.
What ages is Koydo Lingua for?
Lingua serves learners from age 3 through adult. The visual tone stays happy and international for young learners, structured enough for parents and teachers to trust, and polished enough for adults pursuing serious CEFR progress.
Do I need to know my level before starting?
No. The CEFR placement test maps you to a level from A1 to C2 in a few minutes, then builds your path from there. You can retake placement any time your goals change.
Can a whole family or classroom use one account?
Yes. The Family plan supports up to four learner profiles with parent-managed setup, and Koydo offers school and partner deployments for multilingual programs and classrooms.
Is Koydo Lingua free to start?
The Starter plan is free forever — it includes CEFR placement, the full language catalog, and selected guided practice. Premium and Family plans unlock unlimited lessons, the Speaking Lab, reading, music, and progress history.
Ready to find your level?
The CEFR placement test takes a few minutes and is free. Your learning path is built the moment you finish.