Payment Processing

Accept payments in one integration.

Add checkout flows, subscriptions, webhooks, and pricing tiers to your app with a single prompt. Start accepting real payments from day one.

Who this is for

Any app that needs to collect money from users. Whether you are building a SaaS, a marketplace, an e-commerce store, or a service booking platform, TrainedApps can generate the payment infrastructure you need.

The generated payment system integrates with Stripe, the most widely used payment processor. All you need is a Stripe account and your API keys.

Common use cases

  • SaaS with monthly or annual subscriptions
  • Marketplace with seller payouts
  • E-commerce with product catalog and cart
  • Service booking with upfront payment
  • Membership site with gated content
  • Donation or fundraising platform

What is included

Every payment generation includes these capabilities, wired together and ready to process transactions.

Checkout flows

Pre-built checkout pages with product selection, quantity, pricing display, and secure payment processing.

Subscription management

Recurring billing with plan selection, upgrades, downgrades, cancellations, and reactivation flows.

Webhook handling

Automatically generated webhook endpoints that listen for payment events and update your database in real time.

Invoice generation

Automatic invoice creation with line items, tax calculations, and downloadable PDF receipts.

Revenue dashboard

An admin view showing total revenue, active subscriptions, churn rate, and payment history.

PCI compliance

Payment data is handled by the payment processor. Your app never touches raw card numbers.

Common billing flows

Three billing patterns that TrainedApps can generate from a single prompt.

Free trial to paid

  1. 1User signs up for a free trial
  2. 2Trial period countdown with reminders
  3. 3Prompt to enter payment info before trial ends
  4. 4Automatic conversion to paid plan
  5. 5Grace period handling for failed payments

Monthly subscription

  1. 1User selects a plan from the pricing page
  2. 2Checkout with card entry or saved payment method
  3. 3Monthly charge processed automatically
  4. 4Usage tracked and displayed in dashboard
  5. 5Upgrade or downgrade at any time

One-time purchase

  1. 1User selects a product or service
  2. 2Add to cart with quantity selection
  3. 3Secure checkout with payment processing
  4. 4Confirmation page with receipt
  5. 5Delivery or access granted immediately

Admin and revenue dashboard

Every app with payments also gets a revenue section in the admin panel. Track your business metrics without third-party analytics.

  • Total revenue over time (daily, weekly, monthly)
  • Active subscription count and plan breakdown
  • Recent transactions with status and details
  • Failed payment alerts and retry management
  • Customer lifetime value estimates
  • Export revenue data to CSV
Admin > Revenue

$12,450

This month

284

Active subs

2.1%

Churn rate

Acme Corp
$99.00Paid
Beta LLC
$49.00Paid
Gamma Inc
$99.00Failed

Credit usage example

How many credits does adding payments cost?

~8

One-time checkout

Product page, cart, payment

~15

Subscription billing

Plans, checkout, management

~25

Full commerce suite

Subs, invoices, admin, webhooks

Estimates vary based on complexity. You always see the cost before confirming.

Start collecting revenue today

Describe your payment flow in one prompt. TrainedApps generates checkout, subscriptions, webhooks, and a revenue dashboard.