Accounts · Payments · Email · Mobile apps

Ship your next prototype as fast as possible

Login, payments, email, and mobile app shells, done. Hand it to your coding agent and build the part that's actually yours, not the basics every app needs.

Works with
what's inside
Passwordless login with Google, Apple, or email Payments & subscriptions Email that sends itself iPhone & Android app shells Works with teams from day one Deploys with one command

built for coding agents

A clean starting point your coding agent can read and build on

Instead of rebuilding sign-in, payments, and email every time, your coding agent starts from a foundation that already works, and spends its effort on the part that's yours.

It reads the project

A short guide (CLAUDE.md / AGENTS.md) tells your coding agent the one obvious way to do each thing, so it builds without guessing.

Adds features in one pass

Ask for a new screen, a paid feature, or an email, and it lands complete, wired up and ready, not half-built.

Checks its own work

The project comes with its own tests, so your coding agent can confirm a change actually works before you ever see it.

Plain English in, app out

The groundwork is done, so you describe what you want in everyday words, not the technical plumbing underneath.

the essentials

The parts every app needs, done

Accounts, payments, and email are built and ready. Connect your own accounts to switch them on, and get back to building your idea.

Accounts
Sign in, the easy way
  • Sign in with Google
  • Sign in with Apple
  • Or a one-time code by email, no passwords
Payments
Get paid
  • Subscriptions and one-off payments
  • Secure checkout, receipts, cancellations
  • Powered by Stripe
Email
Email that lands
  • Sign-in codes, welcomes, receipts
  • Clean templates, easy to edit
  • Sends on its own, in the background

what's in the box

Everything already built in

Accounts & sign-in

Google, Apple, or a one-time email code

Payments

Subscriptions and one-off payments with Stripe

Email

Sign-in codes, welcomes, and receipts

Mobile apps

iPhone and Android app shells, from the same app

Built for teams

More than one person per account, from day one

Behind-the-scenes work

Sending and processing handled for you

Privacy tools

Export or delete an account's data on request

Safe by default

Sensible limits and protections already in place

Deploys with one command

Ship it to your own host when you're ready

skip the rebuild

Stop rebuilding what every app needs

Sign-in, payments, and email look almost the same in every app, and building them again is time and effort spent on a solved problem. One Shot hands them over done, so your coding agent puts it all into the part that's yours.

mobile apps

iPhone and Android, from the same app

The app you build on the web is wrapped by native iPhone and Android shells, with in-app purchases already wired up. Build the part that's yours, then submit to the App Store and Google Play.

⚠ worth knowing

Apple and Google take a cut of in-app subscriptions (about 15% to 30%) and review every app before it goes live. You'll need their developer accounts.

iPhone
App Store
Android
Google Play

how you get it

Yours to keep, with updates

Subscribe and you get the full code, privately, plus every update while you're subscribed. Point your coding agent at it and start building.

what you get
The full code, privately

Everything above, ready to build on, with new updates added while your subscription is active.

see it live
A working demo

A real, browsable app built on this exact foundation.

this very site
Built on it too

The checkout and account area you're using right now are built on it.

pricing

One simple price

everything included, yearly
$49 / year

Billed yearly · cancel anytime

Get started
  • Accounts, payments, and email, built in
  • iPhone and Android app shells
  • Ready for your coding agent to build on
  • Updates while you're subscribed
  • Build as many apps as you like, personal or commercial

from the creator

I ship an app most weeks. It bootstraps my aerospace work and earns the passive income I live on. One Shot is the tooling I put together to make that prototyping as fast as possible for me. I hope it's as helpful for you 🙏

@wbnns

Start with key features already built

Hand your coding agent a foundation that already works, and go from idea to a prototype in one shot.

Start shipping →