Read it this morning.
Say it tonight.

Spark turns whatever you already read and watch into words you can actually say.

  • YouTube
  • TikTok
  • Claude
  • ChatGPT
  • Books
  • Articles
The Spark dashboard: 95 words you can use against 332 known, a 29% activation rate, and a column chart of words lit as they become usable.

500 hours in.
Still can't speak.

Reading builds a vocabulary you understand. None of it arrives when it's your turn to talk. Spark closes that gap with one loop, run on the things you already read: immerse, train, use.

  1. Immerse

    Read and watch what you already love.

  2. Train

    Drill the words you met until they stick.

  3. Use

    Say them out loud while they are still warm.

The content you already consume is the lesson.

An article, a YouTube video, a novel, a podcast, a newsletter, a chat you had in ChatGPT. Bring it in. Every word you don't know is one tap from an explanation at your level.

Reading a YouTube transcript in Spark, with the Explain panel open beside it to ask about any word.

The words you looked up become words you can say, and say properly.

We drill the words you met, not a generic deck. Then shadowing trains your mouth: say the line, hear how close you got, and say it again until it sounds right.

A review card in Spark: an English prompt, its Spanish answer, and buttons for I knew it or I didn't know.

Review

The words from what you read, back right before you would forget them.

Shadowing in Spark: a French sentence with its English translation, over a waveform of the speaker against your own.

Shadowing

Say the line, see how close you got, say it again.

Use it before it counts.

Talk about what you read. Roleplay the author. Journal. Speak out loud to an AI that knows what you've read and which words you already have.

Speaking practice in Spark: a greeting and a tap-to-speak microphone.

Everything you learn stays yours.

Highlight, note and tag as you read. Organize your library the way you want. Then take all of it into Claude or ChatGPT and keep working in the language wherever you already are.

Highlight, note and tag

As you read, without leaving the page.

Organize your library

The way you want, not the way an app decided.

Take it into Claude or ChatGPT

Keep working in the language wherever you already are.

A tool that treats you like an adult.

We believe learning a language is serious work, and it deserves a tool fit for a professional. No coins, no leagues, no mascot nagging you.

A note from
the founder

Hi, I'm Matt.

I started learning Spanish because I liked the music. I had a plan. That was the whole reason.

What came out of it was a friend in Costa Rica who invited me to come live there, the company I went on to co-found, my wife, and my daughter. None of that was the plan. All of it came through a door that only opened because I learned to talk to people in their language.

My goal with Spark is to give you the same chance: to connect with people and explore another culture the way I got to. Not through a screen that translates for you. By actually being able to talk to them.

So it does one thing: it turns what you understand into what you can say. Read something you care about. Drill the words that didn't stick. Use them while they're still warm.

My daughter has three languages around her. I want her to walk into any of those rooms and actually be in it. Not a tourist. Not smiling politely while something happens around her.

I want that for you too. If something's off, email me. I read everything. Eventually.

Matt

Matt from Spark

Make your passive vocabulary active.

Free to start. No credit card.