Adopt exactly as much
as you want.

Listed

A free search card — your app's image, name, and tagline, linking straight to your site. We may have created yours already: being findable costs nothing, so we don't wait to be asked. The notice email holds your claim link; claiming is free, takes a minute, and signs you up for nothing.

Run an affiliate program of your own? We'll point your card at your affiliate link, so every visitor we send you arrives attributed. Prefer not to be listed at all? One reply and the card comes down, no questions asked.

See the search cards

Selling

Paste a buy link on your pricing page and UseThatApp becomes the merchant of record behind it: hosted checkout, subscription billing, sales tax calculated and remitted, refunds, chargebacks, and payouts through Stripe. Every sale settles for 10% + $0.50 — no monthly fee, nothing billed separately, and the affiliate program is included.

See pricing Create your buy link

Verified

Gate your paid features with one server-side call. There are two ways to make it, and the difference is exactly one thing: whose login your customer uses.

POST /api/v1/licenses/validate
Authorization: Basic <client credentials>

{ "key": "key_x9K2mQ7Tf…" }

HTTP/1.1 200
{ "entitled": true, "status": "active",
  "period_end": "2027-08-21T…" }

GET /api/v1/entitlement/
Authorization: Bearer <user session token>

HTTP/1.1 200
{ "entitled": true, "status": "active",
  "product_public_id": "prod_h4N8…" }

Same answer either way — apps re-validate on their own cadence and cache against period_end. Switch modes whenever you like; neither breaks the other. SDKs on PyPI and npm, or call the endpoints directly.

Read the docs

Compounding

Every seller account includes the affiliate program. Share your referral link and earn 25% of our fee on every payment a referred customer ever makes — renewals included, for as long as their subscription lives. Use it on your own traffic and the commission comes back to you.

Join the affiliate program