An English app built for speaking, not just studying.
Catlangu helps you go from understanding English to actually speaking it — with vocabulary lessons, AI practice, shadowing, and real conversations with other learners.
Understanding English and speaking it are different skills.
A lot of learners can read English, pass tests, and even text comfortably — but freeze the moment they need to speak out loud. We built Catlangu to focus on that specific gap: helping you get comfortable speaking, not just recognizing words.
You get better at speaking by speaking.
Every part of Catlangu is built around getting you talking — practicing with AI when you want low pressure, shadowing native speakers to work on pronunciation, and talking with real people when you're ready for the real thing.
What we focus on.
A few things that guide how we build Catlangu.
Practice comes first
Reading about grammar only goes so far. We focus on getting you speaking as early as possible.
Mistakes are part of it
You'll get things wrong while you're learning to speak — that's expected, and it's how you improve.
Real conversations matter
Practicing with real people, not just an app, is part of what makes the learning stick.
A small team building one thing.
We're a small, independent team focused on Catlangu. We read the messages that come through hello@catlangu.com, and we build based on what we hear from people using the app.
English first. Then other languages.
English is where we're starting. Over time, we'd like to bring the same approach — practice-first, speaking-focused — to other languages too.