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Adaptive reading and listening

The graded reader that never runs out.

Fluentsea gives you target-language stories, dialogues, and articles at the edge of what you understand, with help close enough that you can stay inside the text.

Join waitlist See the method

Built for the space between beginner lessons and native media.

Spanish Beginner Audio ready
Una mañana tranquila

Esta mañana, Lina fue al mercado temprano. Compró café y pan para su madre.

mercado: market temprano: early compró: bought
Known words: 42 Focus words: mercado, compró

The method

Learn from language you can almost read.

Fluentsea is grounded in comprehensible input: the idea that people acquire language when they understand meaningful content with just enough new material to grow. The product is input-first, with reading and listening at the center, and support nearby when it helps you stay with the text.

Grammar and explanations are welcome when they help you understand the sentence in front of you. They are not the course. The content is.

01

Content scarcity is the old problem.

Fixed courses and thin graded-reader shelves force learners back into drills. Fluentsea is built around abundant input that can match the learner's level and interests.

02

Help belongs inside the reading flow.

Translations, definitions, audio, and explanations are support layers. They keep the learner moving through the story instead of sending them to a dictionary tab.

03

The next text should know what came before.

Known words, focus words, engagement, and recommendations help the library adapt quietly as the learner understands more.

How it works

A library that keeps adjusting its shelves.

Fluentsea can recommend existing content when it fits, or generate a new text when the right one is not on the shelf yet.

  1. Ask for what you care about.

    Request a simple dialogue, a story about your hobby, a travel scene, or an article at your level.

  2. Read and listen with support nearby.

    Tap words, hear audio, and ask for an explanation when a phrase gets just beyond reach.

  3. Mark what is yours.

    Known words and focus words help Fluentsea learn what you can handle and what you want to see again.

  4. Let the library adapt.

    The next recommendation or generation can move with your vocabulary, interests, and reading history.

Learner prompt

"Give me a beginner Spanish dialogue about choosing food at a night market. Include words I am focusing on if they fit naturally."

Fluentsea output

A short dialogue at the learner's level, parsed for word help, translated into their native language, ready to read and listen to.

Language support

Read in the language you're learning.

Every language listed below supports the full Fluentsea loop today: generated text, audio, word-level help, known and focus words, and personalization.

13

fully supported target languages.

EnglishSpanishFrenchGermanPortugueseItalianRussianDutchVietnameseKoreanJapaneseChinese (Simplified)Chinese (Traditional)

More languages will be added when parsing is reliable enough for real word boundaries, accurate word-level help, and learner data Fluentsea can trust.

Josh York, founder of Fluentsea

Founder story

Built by someone who ran out of things to read.

Fluentsea is built by Josh York, a software engineer with roots in cultural anthropology, linguistics, Chinese, and Teaching English as a Second Language.

While studying abroad at Beijing Language and Culture University, Josh pushed his Mandarin to a lower-intermediate level. Back in the United States, real practice was scarce. Graded readers helped, but there were never enough of them.

Fluentsea is the product he wished existed then: an abundant source of interesting, level-appropriate input, with the right help close enough to keep reading.

  • Cultural anthropology, linguistics, Chinese, and TESL roots.
  • 15+ years building software products with effective product teams.
  • Built from the same content gap that made Mandarin hard to maintain.

Waitlist

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