Built for iPhone. Built for privacy.

Speak more.
Stay private.

Koko is a fully local language learning app for listening and conversation practice. No cloud. No connection. Just you, speaking with confidence.

100% on-deviceWorks offlinePrivate by default
Product demo00:12
Local modeEverything stays here

YOUR VOICE

YOUR IPHONE

NOWHERE ELSE

A better way to practice

Real conversation.
Zero audience.

The fastest way to get comfortable speaking is to speak. Koko gives you a judgment-free place to practice, even when there is no Wi-Fi.

01

Speak without pressure

Practice real conversations with a patient partner that adapts to your level and lets you try again.

02

Train your ear

Hear natural speech, replay tricky phrases, and build confidence understanding the language as it is spoken.

03

See yourself improve

Follow speaking time, vocabulary, consistency, and level progress without creating a cloud profile.

Offline means offline

The cloud can't hear you.

Koko's speech recognition, conversation intelligence, and natural voice run locally on your iPhone. Your recordings, words, and progress never need to leave your device.

  • Practice anywhere, including on a plane
  • No account required to start speaking
  • No voice recordings sent to a server

LOCAL FIRST Your language practice belongs to you.

Inside Koko

From first word
to real momentum.

One calm place to start a conversation, listen closely, and notice how far you have come.

Koko's welcome and native language selection screens
01

Set up in minutes

Choose what you speak and what you want to practice.

Koko spoken assessment and conversation screens
02

Talk from day one

Hold to speak. Koko listens, responds, and keeps the conversation moving.

Koko conversation home screen
03

Practice your way

Pick a topic, surprise yourself, or jump into a real-world situation.

Koko speaking progress and language insights screens
04

Progress you can hear

Compare recordings and see your speaking habits grow over time.

How it works

Less studying.
More speaking.

1

Choose a conversation

Pick a topic, situation, or let Koko surprise you.

2

Speak naturally

Talk at your pace. Koko listens and responds on-device.

3

Hear your progress

Review useful words, speaking time, and past recordings.

Your next conversation is ready

Go ahead.
Say something.

Private, fully local listening and speaking practice.
Made for iPhone.

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