Anyone can build the app only they would think of.
Chaaga turns a plain-language idea into a real, working app — for your family, your field, your classroom or your shop. No engineers, no waiting, no permission.
Advanced users can also use their favorite coding environment
To create and update directly chaaga apps on their phones
Share it to their users
That can easily use and update the app themselves
What you can make
Real things people made in a few minutes. Each one started with a single sentence.
Split the Bill
Tip, tax and who owes what, in three taps.
Streaks
A habit grid that fills in as the month goes.
Dice Table
d4 through d20 with a shake-to-roll gesture.
Days Until
One giant number counting down to the thing.
Flashcards
Paste a list, get a swipeable study deck.
Tap Racer
A silly two-thumb race for two people, one phone.
Shift Pay
Log hours, see the paycheck before payday.
Plant Water
Six plants, six schedules, one nudge a day.
Why Chaaga
On-device and private
Your apps and their data stay in local storage on your phone. Nothing is uploaded to us.
Pay only for what you build
Buy usage in our shop as you go. No subscriptions to manage.
No sign-up to start
Install, type, build.
For tinkerers too
Built for beginners and developers
Never written a line of code? Just describe your app. Comfortable in an editor? Every Chaaga app is plain HTML and JavaScript you can open, edit and extend yourself.
01 · Sync
Work on your computer, run it on your phone
The chaaga-cli tool copies an app between your phone and a folder on your computer, straight over your Wi-Fi. Pull an app the AI built down to your laptop, edit it in your usual editor and push it back, or keep the two in sync live. No cloud and no account. Or let Claude Code do it: install the Chaaga plugin and ask it to edit your app.
02 · Plain web code
Write HTML and JavaScript directly
No framework, no build step, no lock-in. Write the code by hand, let the AI write it, or mix the two: ask for a feature in chat, then fine-tune the result yourself.
03 · Native bridge
Use the phone's features from JavaScript
A built-in chaaga bridge gives your page native features: local and scheduled notifications, contacts, the camera and microphone, a barcode scanner, file picking, keeping the screen awake and more.
terminal
# once: point the CLI at your phone
chaaga-cli connect 192.168.1.23
# link a folder to app 3, pull it, edit, push back
chaaga-cli link ./my-app 3
chaaga-cli pull ./my-app
chaaga-cli push ./my-app
claude code
# let Claude edit your app for you
/plugin marketplace add chaaga-world/chaaga-cli
/plugin install chaaga@chaaga-world
index.html
await chaaga.notifications.requestPermission();
await chaaga.notifications.show({
title: 'Water the plants',
body: 'The basil is thirsty 🌿',
});
const friend = await chaaga.contacts.pick();
const stream = await navigator.mediaDevices
.getUserMedia({ video: true });
