Accounts · Payments · Email · Mobile apps

Hand Codex the repo. Review the diffs

Codex reads your codebase and proposes multi-file changes for you to approve before anything runs. One Shot gives it a clean base, with accounts, payments, email, and mobile app shells done, and an AGENTS.md so its suggestions land in the right place and follow the conventions already there. Codex spends its tokens on your product, not rebuilding the basics.

Reads your AGENTS.md · proposes changes you approve

codex · your app
codex "add subscriptions to billing" reads AGENTS.md, proposes the changes you review the diff, then approve applied, clean and in the right place

01 / propose, then approve

Fits the Codex propose-and-approve loop

Codex reads your codebase and suggests multi-file changes for you to approve before anything executes. Starting from the clean base and AGENTS.md in One Shot means fewer surprises and cleaner diffs.

Reads your AGENTS.md

It picks up how the project is built, so its suggestions match what is already there.

Proposes, you approve

Nothing runs until you say so. You review the diff first.

Stays in the conventions

Changes land in the right place instead of fighting the existing code.

02 / 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

03 / what's in the box

Everything already built in

01

Accounts & sign-in

Google, Apple, or a one-time email code

02

Payments

Subscriptions and one-off payments with Stripe

03

Email

Sign-in codes, welcomes, and receipts

04

Mobile apps

iPhone and Android app shells, from the same app

05

Built for teams

More than one person per account, from day one

06

Behind-the-scenes work

Sending and processing handled for you

07

Privacy tools

Export or delete an account's data on request

08

Safe by default

Sensible limits and protections already in place

09

One-command deploys

Ship it to your own host when you're ready

10

Crypto

Wallet sign-in, swaps, and your own token. One command adds it

04 / 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 tokens spent on a solved problem. One Shot hands them over done, so Codex puts it all into the part that's yours.

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.

iPhone · App Store Android · 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.

06 / 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 Codex 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.

07 / pricing

Two ways in

Save money or pay month to month.

monthly

$49 / month

Billed monthly · cancel anytime

save $289

annual

$299 / year

Billed yearly · cancel anytime

both plans include

  • 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

14-day money-back guarantee. Not what you needed? Email us for a full refund, no questions asked.

08 / 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 Codex a foundation that already works, and go from idea to a prototype in one shot.