From side project to paid product. One link.
Your app already works. Now make it pay. One link gives it a checkout, license keys, and sales tax you never have to think about — then goes looking for buyers, with a free listing in our directory and affiliates who earn every time your customer renews.
- Our fee on this sale (5% + $0.50)
- −$2.00
- You receive
- $28.00
href="https://usethatapp.com/buy/prc_x9K2…"
No monthly fee. 5% + $0.50 on customers you bring; 10% + $0.50 only when we bring them.
-
Someone to sell it
Every app gets a free listing in the UseThatApp directory, and an affiliate program that pays referrers 25% of our fee on every payment — renewals included, for as long as the subscription lives.
-
Your coding agent can do it
Connect the UseThatApp MCP server and the agent that built your app can create the listing, set the prices, and wire in the license check.
Connect your agent -
Login and license in one call
A license key your server validates — your own login stays in charge — or hosted sign-in with the purchase check built in. SDKs on PyPI and npm.
UseThatApp is the marketplace and merchant of record for independent web apps.
The route
Your customer leaves your site
for exactly one screen.
-
yourapp.com/pricing your site
The click
A buy link you paste anywhere you already sell — your pricing page, your README, your launch post. No code changes to start selling.
-
usethatapp.com/buy our screen
The checkout
One hosted screen: email-first checkout, cards handled by Stripe. The receipt names us as the merchant, because legally the sale is ours to stand behind.
-
yourapp.com your app, licensed
The return
Your customer lands back on your app with their purchase attached. Verify it your way: a license key your server validates — your own login stays in charge — or let us run sign-in with the entitlement check built in. Either way it's one call, with SDKs on PyPI and npm.
And they come back yours — the customer relationship lives on your app, not on a marketplace page.
The settlement
Every sale is legally
ours to worry about.
UseThatApp is the merchant of record on every transaction. We collect the payment, remit the taxes, absorb the fraud risk, and fight the chargebacks — so you never have to.
- Customer pays
- $30.00
- Sales tax — calculated, collected, remitted
- +tax
- Platform fee (5% + $0.50, your customer) — billing, renewals, refunds, card costs
- −$2.00
- Chargebacks & legal liability
- covered
- You receive
- $28.00
5% + $0.50 on customers you bring, 10% + $0.50 when we bring them — that's the whole cost. No monthly minimums, no listing fees. One optional add-on: Hosted sign-in at +2%, first 3 months free. See pricing.
Ours: payments, taxes, refunds, disputes, and compliance. Yours: the app, and the revenue.
Founding sellers
The first 100 sell on terms
written for good.
Finish Stripe onboarding while a spot is open and 5% + $0.50 is your rate for life — and your first $1,000 in sales from customers you bring pays no platform fee at all.
See the founding termsAffiliate program New
Commissions don't stop
at the first sale.
Refer a customer once and earn 25% of our fee on every payment they ever make — including every renewal, for as long as their subscription lives. Selling here too? Your own traffic already bills at 5% — the link is how you earn on other developers' apps.
Free to join. Referrals count for 60 days, and commissions are paid monthly through Stripe.
Want a storefront too?
Every app can also list in the UseThatApp marketplace — a discovery card buyers can find, one toggle from your dashboard. Browse the marketplace.