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Type the app you wish existed. Foundry builds it.

No code and nothing to install. Say what it should do in your own words, see the price, press Build. Foundry writes it, tests it in a real browser and hosts it for you, ready to open on your phone.

Sign in with Google, get 100 free tokensType your idea

A small app is 100 tokens. Your first 100 are free. Works in any browser, iPhone included. Android app coming soon.

A real build from the live site. The request: A guess the number game on one screen: the app picks a secret number, I type a guess and it says higher or lower. A settings sheet with Save and Cancel sets the highest number. When I win, a button downloads my result as a text file: guesses used and my average distance from the number.

This looks like a small app: 100 tokens.

  • 1:14: Planning every part of the app before writing it
  • 2:53: The checklist the app will be held to (13 items)
  • 3:00: Writing the app
  • 9:53: Trying the app in a test browser
  • 18:14: 11 of 13 tests passed
  • 18:14: Fixing what the tests found
  • 20:57: 13 of 13 tests passed
  • 27:14: Your device ran 11 checks; the builder is reading them.
  • 28:25: Ready: your app is built, tested and hosted.

Guess the Number on a phone: a dark card that says Go HIGHER than 37, a box for the next guess, a yellow Guess button and the count of 3 guesses. 100 tokens, built in 28 minutes, 13 of 13 tests passed.

Replay a real build:
Full record of this build

Built on the live site by the Foundry team while testing, 10 November 2026. The lines and times are that build's own; the replay is sped up.

Your turn. What would you build?

A price calculator for your shop, a chore chart for the kids, a game for a rainy afternoon. Write it the way you would explain it to a friend: what you type, what you tap, what it shows.

Or start from one of these:

Google sign-in opens next. Your words are kept in this tab and are in the studio's box when you come back, with the price, before anything is charged.

Three steps, no code

  1. Step 1: Say it

    One sentence is the whole brief: 'Snake, with a high score.' Foundry shows the price before you build.

    The studio's Build an app box with the Guess the Number request typed in, and under it: This looks like a small app, 100 tokens.

  2. Step 2: Foundry makes it

    The AI plans it, writes the code, then tests the app in a real browser and fixes whatever fails.

    The build page for Guess the Number: Your app is ready, each stage from Planning to Done marked OK, and the list of every step it took.

  3. Step 3: It is yours

    It appears under My apps at its own private address. Open it, install it, change it with another sentence, or share a link.

    The app's page in the studio: Guess the Number with its description, private until a link is shared, and the app itself running below.

Apps Foundry has built

Real apps from the live site, built by the Foundry team while testing. Each card shows the app, its price and how long it took, and the words that asked for it.

  • Trip Ledger

    300 tokens, built in 77 minutes, 21 of 21 tests passed

    Trip Ledger on a phone: a Lisbon trip totalling $311.34 of a $1,200 budget, a doughnut chart of spending by category, and a table of lodging, food, activities and transport in US dollars.

    The request

    “A travel expense tracker that runs in your browser on one phone, with everything saved on that device and kept after the app is closed.”

  • Memory Match

    200 tokens, built in 76 minutes, 22 of 22 tests passed

    Memory Match on a phone: twelve purple cards face down on the Easy board, with the move count and a timer at the top.

    The request

    “A memory card matching game.”

  • Currency Converter

    200 tokens, built in 140 minutes, 8 of 8 tests passed

    Currency Converter on a phone: 120 US dollars converted to 107.21 euros at the European Central Bank rate of 9 November 2026, with the conversion saved below.

    The request

    “A currency converter with live exchange rates: I type an amount and pick two currencies, and it shows the converted amount at today's rate, with a small list of my last five conversions saved on this device.”

  • Budget Book

    300 tokens, built in 103 minutes, 35 of 35 tests passed

    Budget Book on a phone: the November 2026 dashboard with $1,581.30 of expenses, a doughnut chart of spending by category (rent, food, utilities, transport, entertainment) and the last six months below.

    The request

    “A budget app: accounts, categories, monthly charts of spending, and a screen to add and edit transactions.”

See all six, each request in full with its build's record

A real app, tested, private, yours

Sign in with Google and buildNew accounts start with 100 free tokens.
A real project
Several screens, charts, saved data, canvas games. The whole source is yours to download.
Tested in a real browser
Chrome taps and types through a test of every item on the app's checklist. What fails goes back to the builder.
Private
Only you can open your app, until you share a link. You can revoke a link at any time.
Works offline
Install it from the browser, or download it as one file that runs with no internet.

Priced in tokens, shown before you build

Tokens pay for the AI that makes your apps. You see the price before you build, and a build that does not end in a working app gives its tokens back.

What things cost in Foundry
WhatCost
Sign in for the first time100 tokens, free
Make a new app100 to 300 tokens by its size, shown before you build
Change an app you made50 to 200 tokens by its size, shown before you press
Fix something it was first asked to doFree
Buy tokens$5 and up, 100 tokens a dollar
A build that doesn't work outFree: the tokens come straight back

Buy more on the Tokens page, from $5. Token purchases are final, and tokens do not expire.

The terms say exactly what comes back when a build fails or you cancel one.

Share what you make

Send a share link to anyone: the app opens on their phone or computer, with nothing to install. Revoke the link and it stops working within 10 minutes.

Coming soon

  • Storefront. Put the apps you make up for sale. Other Foundry users buy them with tokens, and you get paid.
  • Multiplayer. Play the games you make with friends, on their phones, at the same time.
The Share part of an app's page in the studio: anyone with a link can use the app with their own saved data, and a Create a share link button.

Questions

More on the support page, in the terms and the privacy policy.

What kind of apps can it make?
Games, trackers, calculators, timers, planners and little helpers, from one screen to several with charts and saved data. Foundry tells you before you build when a request needs something a browser app cannot have, such as its own server, accounts, payments or live chat.
Do I need to know how to code?
No. You describe the app and Foundry writes the code.
Where do my apps live?
On our servers, each at a private address only you can open until you share a link. You can install any app, or download it and its source.
What does the AI see?
Your request, the app's plan and code, and screenshots of the app being tested. The privacy policy has the details.
Can I get my money back?
Token purchases are final and tokens do not expire. A build that ends without a working app returns its tokens by itself. The terms have the details.
Which devices?
Any modern browser, on a computer or a phone, iPhone included. An Android app is coming soon.

Start in your browser

Sign in with Google and build your first app today. The Android app is coming soon on Google Play.

Sign in with Google, get 100 free tokens