Accounts · Payments · Email · Mobile apps
Ship your next prototype as fast as possible
The Rails starter I use to ship an app most weeks. Login, payments, email, and mobile app shells, done. Hand it to your coding agent and build the part that's actually yours.
01 / 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
02 / 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.
01
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.
02
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.
03
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.
04
Plain Rails, yours to keep
No hosted service and no lock-in. Read any file, change anything, and deploy it to your own server.
03 / 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 that lands
- ×Sign-in codes, welcomes, receipts
- ×Clean templates, easy to edit
- ×Sends on its own, in the background
04 / 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
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
05 / 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 spent on a solved problem. One Shot hands them over done, so your coding agent puts it all into the part that's yours.
06 / 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.
07 / 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.
08 / pricing
Two ways in
Save money or pay month to month.
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.
09 / built with One Shot
Real sites running on this codebase today
One Shot
shiponeshot.com
This website. :)
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10 / 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 🙏 Will Binns
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.