An app in your head? Put it on your phone.
Describe it in plain English. AI builds it, Envelope keeps it running, and you get an app anyone can open. No developer, no app store.
What are you hoping to build?
Choose a starting point. You can change direction anytime.
AI builds it. Envelope makes it real.
Not a prototype. A real app, on a real phone, the second it's built.
Tell Envelope what you want in plain English and watch your app take shape in real time.
What happens next is what makes Envelope different.
Your app can work while you sleep. An order arrives, it writes a summary and pings your phone.
Set it to run on a schedule, or whenever something happens. Nothing to wire together.
Every app gets its own link. Send it to anyone. One tap and it stays on their phone.
No app store. No download. No waiting.
See how many people visit your app, how many install it, and how they use it. Built in, nothing to install, nothing to set up.
Who builds with Envelope
Pick the one that sounds like you.
For content creators
Pattern shops, course creators, fan communities.
Turn your work into an app your audience actually keeps on their phone.
For small business
Studios, shops, salons, trades.
Replace the spreadsheet with a tool that fits how you actually work.
For hobbyists
Wedding RSVPs, D&D sheets, family lists.
Make it in an afternoon. Share it with the five people who need it.
It all comes included
Every Envelope app can send notifications, remember data, require logins, talk to users, and more. Just flip a switch and everything works automatically.
Voice Assistant
Talk to your app out loud and get answers back. Like having Siri built in.
AI Chatbot
Drop in a smart chatbot you can message anytime. Teach it whatever you want.
Images
Pick photos, snap from the camera, or generate images with AI. Built right in.
Looks things up for you
Your app can pull live answers off the web: prices, scores, weather, today's news.
Automatic Tasks
Set up automatic tasks that run behind the scenes. Send summaries, check things on a schedule, or respond to events automatically.
Google Sheets, Slack, HubSpot
Connect a Google Sheet, Slack, or HubSpot. Your app writes to them on its own, nothing to connect, nothing to maintain.
Notifications
Send real notifications straight to people's phones. Keep them coming back.
Saved Info
Save and remember things: preferences, high scores, lists. Nothing to set up.
Logins
Require a login before anyone can use your app. No code, no setup. Just flip it on.
Get Early Access
Envelope is invite-only right now. Got a code? You're in. Otherwise, grab a spot on the waitlist.
How It Works
Start from scratch with AI. Envelope handles everything, and it lands on someone's phone. No app store, no download, no waiting.
Build with AI
Describe your app
Tell the AI what you want. It builds while you watch.
Preview live
See it come together in real time. Tweak until it's perfect.
Add automations
Set up workflows that run on a schedule or when something happens.
Publish
One click. Your app is live and shareable.
From the Blog
Updates, guides, and behind-the-scenes from the Envelope team.
Build Apps Together in Envelope
Invite someone to an app, make your changes in your own copy, and merge them into the shared app when you are ready.
Read moreYour App's Data in Google Sheets. No Glue Required.
Connect a Google Sheet once and your app writes to it on its own. Every signup, mood entry, or order shows up in a spreadsheet you own, ready to chart and analyze.
Read moreClaude Can Now See the App It Builds, and Fix It Before You Do
Claude now checks its own work after every change. It sees what the app looks like and catches mistakes before they reach you.
Read moreGo Native
Want your app on the App Store or Google Play? We'll handle the entire conversion and submission process for you.
App Store & Google Play Publishing
We'll turn your Envelope app into a native app and get it live in both stores.