Payment processing apps

A payment processing platform lets a business accept money securely and get it into its bank account. It connects the checkout experience, fraud checks, banking rails, and the business’s back office.

A customer starts at checkout on the web, in an app, or at a point of sale. The platform hosts or secures the payment form, collects card, wallet, or bank details, and turns them into a token so the business never handles raw secrets. Providers like Stripe and Square handle both online and in-person flows.

The platform runs risk and compliance checks, may ask the customer to authenticate, and sends an authorization request through banking networks. If the bank approves, the order is confirmed. The platform can capture funds immediately or on shipment.

It then settles the funds to the business on a payout schedule, and posts updates via webhooks so the store, app, or ERP can mark the order paid. Refunds and chargebacks flow through the same rails with their own events and fees.

Beyond taking payments, some platforms automate payouts to vendors, gig workers, or creators, track balances, and issue reports. Razorpay focuses on automated payouts, while Paddle and Lemon Squeezy can act as a merchant of record, handling global tax and compliance on the seller’s behalf.

Accept online payments on a store or checkout page. Offer cards, wallets, and bank transfers in one integration, with built-in fraud screening.

Run recurring billing for subscriptions and memberships. Handle trials, proration, dunning emails, and plan changes without custom code, as supported by platforms like Lemon Squeezy.

Send invoices and collect payment links. Let customers pay by email or a hosted page, and reconcile the funds automatically in the dashboard.

Operate a marketplace or platform. Split a single charge across multiple sellers, hold funds in balances, and schedule compliant payouts, which Razorpay supports.

Accept in-person payments with a terminal or reader. Use the same account for online and retail and see unified reporting, as offered by Square and Stripe.

Manage global sales. Localize checkout, handle tax calculation and remittance when acting as merchant of record, which platforms like Paddle and Lemon Squeezy provide.

Automate back office tasks. Export to accounting, reconcile deposits, track disputes, and generate settlement and tax reports.

• Online Stores And Direct-To-Consumer Brands: Launch a secure checkout quickly, add wallets, and manage refunds and returns in one place.
• SaaS And Membership Services: Run recurring billing, trials, coupons, metered usage, and revenue recognition without building from scratch.
• Marketplaces And Creator Platforms: Onboard sellers, split payments, hold reserves, and automate compliant payouts at scale.
• Mobile Apps And Games: Embed a native payment sheet, support one-tap wallets, and sync receipts to user accounts.
• Brick-And-Mortar Retailers And Restaurants: Take in-person payments with readers, track tips, and unify online and in-store sales.
• Agencies And Freelancers: Invoice clients, accept payment links, and automate reminders and reconciliation.
• Finance And Operations Teams: Get settlement, fees, and dispute reports, close the books faster, and monitor cash flow and payouts.
• Developers And Product Teams: Use SDKs, webhooks, and dashboards to build checkout, handle edge cases, and test end to end.

Payment processing platforms usually combine transaction-based fees with optional subscriptions and add-ons.