First for founders

Turn a specific customer problem into a first app you can inspect.

Choose one pilot promise, collect evidence about it and decide what to build next. A waitlist signup and a repeat customer are different signals. A founder tests a repair-booking idea with five pilot customers. Three request Saturday collection, but the pilot has only two collection slots. Preserve the third request on a waitlist and ask for a preferred alternative before confirming a booking.

Get started

From idea to live

Learn from the first constraint

Five pilot customers see a repair-collection offer. Three ask for Saturday, but the pilot has two collection slots. Confirm the two available slots and keep the third request waiting with the customer's preferred alternative.

Build an app where customers can book a repair pickup.
Describe your idea.
Start with one thing a visitor should be able to do. First gives you a version you can click through in preview.
Repair pickup app
Your pickup is confirmed
Pickup day
Saturday
Booking RP-024
Point. Describe. Refine.
Keep chatting, or select an element in Design Mode and tell First exactly what to change.
Put it online
Your app gets its own link.
yourapp.onfirst.app
Anyone with the link can view it and make their own copy.
Make it live.
Click Go live when your preview is ready. First hosts the app and gives you a link. Publish updates to that same link as you learn.

Batteries included

Built in. Auth, database, file storage, forms, email, Media Cloud and publishing.

From the first sign-in to the link you share. Build with backend services, forms, email, media and publishing in the same workspace.

Sign-in for your app.
A place for your customers or members to sign in. Configure the access each person needs.
Built-in database.
Keep customers, tasks and bookings in a database, and check that changes persist.
App file storage.
Build upload and download workflows with app file storage and appropriate access rules.
Forms with a submissions inbox.
Collect enquiries and feedback. Review responses in your project and export CSV.
Email for your app.
Send invitations and account-confirmation links. Receive email notifications when someone submits a published form.
Media Cloud library.
Bring images and video from your builder media library into what you create.
A link you can share.
Publish to a free onfirst.app address, with custom domains available on paid plans.

First AI

AI. For your app.

Give the app you build AI features of its own. Let your visitors generate text and create images, right inside their experience.

Title
Tell your story…
Write a short post about handmade pottery and a slower home.
Write the story.
Turn a simple idea into a first draft, right inside your app.
Make room for a slower kind of beautiful
A handmade vase brings warmth to an everyday corner. Choose a piece you love, add a branch from the garden, and let a little beauty become part of your day.
Start with one meaningful object. Give it room to breathe. A slower home begins with the small things you choose to keep.
Create a warm, sunlit cover with handmade pottery and an olive branch.
Article ready. Creating its cover next.
Create the image.
Bring the story to life with an image made from a few words.

Media Cloud

Beautiful media. Faster experiences.

Faster images. Video in your app. One library with global delivery. Let users contribute too, with upload workflows built on First Cloud app storage.

Image optimization sample
JPEG · full quality
144.4 KB
Prepared WebP sample
34.3 KB
1200 × 800 px. Local JPEG and WebP samples. Results vary.
Beautiful images. Less waiting.
Give visitors rich visuals that load quickly, so they can explore your app without the wait.
Responsive images
Before
One size for every screen
Media Cloud
Sized for each display
Every screen. The right size.
Make every image look great on phones, tablets and desktops, without extra work for each screen.
Video delivery
Skateboarding · Loading sample
Video in your app.
Bring your app to life with demos, lessons and stories that help people learn, discover and stay engaged.
User uploads
Add a profile photo
profile-photo.jpg
App storage · First Cloud
Let your users add their own.
Let people personalize their profiles, share files and send in their work, all within your app.
Global delivery
Library
CDN
Your app
Ready for your visitors.
Your media. Delivered worldwide.
Give visitors fast-loading images and videos, wherever they are in the world.
Media library
My library / Brand assets
Photos
Videos
ceramic-vase.jpg
studio-tour.mp4
One library. Everything together.
Organize your images and video in folders, then bring them into your app through chat.

Hosting & publishing

From preview to the world.

Publish your app in one click, with hosting built in. Connect your own domain on a paid plan, or start with a free onfirst.app address on any plan.

Ready to go live
App previewLive app
Publish
Ready when you are
Publish in one click.
Go from preview to a live, shareable app. Keep refining in your workspace, then publish again when your next changes are ready.
Custom domain
Example address
studio.example
Connect your domain
Follow the DNS instructions
Check connection status
Available on paid plans
Make it yours.
Connect a custom domain on a paid plan. Follow the domain setup instructions and check its connection status before sharing.
Your app is live
your-app.onfirst.app
Free address · Every plan
A place on the web for what you’ve built.
Start with a free address.
Every published app gets an onfirst.app address on every plan, including Free. Share the link so people can visit.
Website analytics
Visits
33
Page loads
33
Data served
3.3 MB
HTTP errors
0
TrafficPage loads · UTC
See how your site is doing.
Explore visits, page loads and data served. See which pages people visit and where your traffic comes from.
Share your work
Studio bookings
A simpler way to book a session.
Listed in Showcase
Your choice. Manage it in Sharing.
Put your work in Showcase.
Choose to list your published app in Showcase. Add a description and let others discover what you’ve built.
Publish as a template
Your appA new idea
A starting point others can remix.
Subject to template sharing checks.
Make it a starting point.
Share an eligible published app as a template. Let other builders remix your work into something of their own.

Explore templates.

Made by Team First and the community. Ready for your next idea.

View all

Questions before you start

Bring your founders process into the prompt.

Edit the records, people and example before continuing to build.

Build your pilot app

Turn a specific customer problem into a first app you can inspect.

Learn from the first constraint

Describe your idea.

Point. Describe. Refine.

Put it online

Make it live.

Built in. AuthDatabaseFile storageFormsEmailMedia CloudPublishingAuth, database, file storage, forms, email, Media Cloud and publishing.

Sign-in for your app.

Built-in database.

App file storage.

Forms with a submissions inbox.

Email for your app.

Media Cloud library.

A link you can share.

AI. For your app.

Write the story.

Make room for a slower kind of beautiful

Create the image.

Beautiful media. Faster experiences.

Beautiful images. Less waiting.

Every screen. The right size.

Video in your app.

Let your users add their own.

Your media. Delivered worldwide.

One library. Everything together.

From preview to the world.

Publish in one click.

Make it yours.

Start with a free address.

See how your site is doing.

Put your work in Showcase.

Make it a starting point.

Explore templates.

Questions before you start

Which founders workflows can I start with?

How can I adapt the first version?

Bring your founders process into the prompt.

Built in. Auth, database, file storage, forms, email, Media Cloud and publishing.