Payment Processing: best apps and software
Payment processing software accepts card, wallet, and bank payments from customers and settles funds into a merchant account.

PayPal
PayPal lets users send and receive money, pay online and in stores, store funds, link cards or bank accounts, create invoices/QR codes, and handle multi‑currency payments with purchase protection.

Square
Square is a point-of-sale app that facilitates payment processing, inventory management, and sales analytics for businesses in various environments.

Stripe
Stripe is a financial software platform for payment processing, enabling online and in-person transactions via various payment methods and supports multiple currencies.

Alipay
Alipay is a mobile and online payment platform that allows users to make payments, transfer money, and access various financial services easily and securely.

Toast POS
Toast POS is a cloud-based restaurant management system that streamlines operations, enhances sales tracking, and improves guest experience through various integrated features.

Amazon Pay
Amazon Pay is a secure payment gateway that simplifies online transactions for merchants and consumers with features like quick checkout and fraud protection.

Zettle
Zettle is a mobile POS app that allows small businesses to accept various payment methods, manage inventory, and generate sales reports.

Clover
Clover is a POS system that replaces cash registers and payment terminals, allowing businesses to manage sales, inventory, and payments across various industries.

Alternative Payments
Alternative Payments is a B2B payments platform offering multiple payment methods, automation features, and integration with accounting software for streamlined transactions.

Request Finance
Manages invoicing, AP/AR, payroll and expenses; sends and receives crypto, stablecoin and fiat payments across multiple blockchains and countries; integrates with accounting systems.

PayOp
PayOp is an online payment system that allows businesses to accept payments via over 150 methods globally, ensuring secure and flexible transactions.

PayRange
PayRange is a mobile payment platform for unattended retail, allowing cashless transactions and providing tools for operators to manage sales and operations.

Klarna for Business
Klarna for Business offers merchants flexible payment solutions, transaction management, and marketing tools to enhance customer experience and drive sales.

Braintree
Braintree is a payment gateway that enables businesses to accept various payment methods including credit cards and digital wallets, ensuring secure online transactions.

Flex
Flex is a payment platform that enables businesses to accept HSA/FSA cards, offering a hosted checkout page or integration tools for existing payment systems.

Lemon Squeezy
Lemon Squeezy is a platform for selling digital products, managing subscriptions, and processing payments with compliance tools and analytics for e-commerce businesses.

Lightspeed
Lightspeed Restaurant POS is a platform for restaurants to manage operations, track sales, and facilitate online ordering and payment processing.

ScanPay
ScanPay allows small home service businesses to accept secure payments via Tap to Pay or payment links without a card reader, offering features like free invoicing and team management.

Alipay+
Alipay+ lets international users pay merchants worldwide by linking Visa/Mastercard/JCB for real‑time debit, QR/online payments, automatic currency conversion, and enhanced transaction security.

iZettle
iZettle is a mobile point-of-sale app that allows businesses to accept card payments, track sales, manage inventory, and send invoices.

PayKickstart
PayKickstart is an e-commerce platform that simplifies subscription billing and affiliate management for online businesses with customizable checkout and analytics tools.

PayTrace
PayTrace is a cloud-based payment processing app that automates invoicing and optimizes costs for B2B transactions across various industries.

Authorize.net
Authorize.net enables small businesses to process credit card and eCheck payments online, in-person, and via mobile, while ensuring secure transactions and customer data protection.

Curlec
Curlec is a payment solution that streamlines financial transactions for businesses, offering features like recurring payments and a no-code setup for easy payment processing.

WePay
WePay is an online payment service that provides customizable payment solutions for platforms, enabling secure transactions and fraud protection.

BitPay
BitPay is a cryptocurrency payment platform that enables users and businesses to accept, manage, and convert Bitcoin and other digital assets into fiat currency.

SumUp
SumUp is a mobile payment app enabling businesses to accept card payments securely through various methods, manage products, and send receipts without monthly fees.

Paystack
Paystack is a payment gateway that enables businesses in Africa to accept online and offline payments from various methods securely.

PayNearMe
PayNearMe is a payment platform that allows customers to pay via cash, debit, credit, ACH, and mobile payments like Apple Pay and Google Pay.

Zoho Checkout
Zoho Checkout is an online payment processing app that allows businesses to create custom payment pages and accept payments securely.

Mercuryo
Mercuryo is a crypto payment platform for Web3 apps that lets users buy, sell, and pay with crypto through on-ramp, off-ramp, and payment tools.

Dutchie
Dutchie is a technology platform for cannabis retailers, offering solutions for point of sale, payments, and e-commerce to enhance dispensary operations and customer experiences.

Online Giving
The Online Giving app simplifies digital donations for churches, offering options for online, mobile, and text giving, along with donation tracking and secure payment processing.

NCR Voyix
NCR Voyix is a digital commerce solution that streamlines retail operations with POS processing, inventory management, and AI-powered self-checkout features.

Revolut Business
Revolut Business is a financial management app for companies, enabling multi-currency accounts, expense tracking, and secure payment processing globally.

Mercado Pago
Mercado Pago is a digital payment app that facilitates financial transactions, offering services like digital wallets, credit solutions, and integration with e-commerce platforms.

Poynt
Poynt is an all-in-one point-of-sale app that streamlines payment processing and business management for merchants through various payment methods and integrated tools.

PayJunction
PayJunction facilitates secure payment processing for businesses, offering tools for in-store, online, and mobile transactions, as well as integration with various payment methods.

Cheddar Up
Cheddar Up is an online platform for collecting payments and forms for groups and events, offering customizable pages and multiple payment options.

Givelify
Givelify is a digital giving platform that enables nonprofits and churches to accept online and mobile donations easily.

EBizCharge
EBizCharge is a payment processing solution that integrates with various business systems, enabling secure online and mobile transactions.

Epos Now
Epos Now is a point-of-sale app supporting retail and hospitality businesses with features like inventory management, sales reporting, and secure payment processing.

Payzer
Payzer is an all-in-one software for HVAC and Plumbing contractors that offers scheduling, customer management, invoicing, and secure payment processing.

Paysafe
Paysafe is a digital payments app enabling secure transactions for individuals and businesses through various payment methods, including online, in-app, and in-store.

Sila
Sila is a payment gateway providing an ACH API for financial transactions, offering digital wallets, identity verification, and transaction risk assessment.

LawPay
LawPay is an online payment processing app designed for law firms, ensuring secure payments and compliance with legal guidelines.

GoCardless
GoCardless is a payment platform that facilitates direct bank payments for businesses, enabling one-off and recurring payment collections efficiently.

Monnify
Monnify is a payment gateway that enables businesses to accept one-time or recurring payments through cards and bank transfers on web and mobile applications.

Pushpay
Pushpay is a digital giving platform that enables churches and nonprofits to manage online donations and financial records efficiently.

2Checkout
2Checkout is a global payment gateway that facilitates online transactions, supports multiple currencies, and offers subscription billing for businesses.

PayHOA
PayHOA is a cloud-based app for managing homeowner associations, providing tools for payment processing, accounting, and communication between managers and residents.

Shift4
Shift4 is a payment processing app that enables businesses to accept and manage payments across multiple channels and currencies with enhanced security and analytics.

Seesail
Seesail is a fintech platform providing POS systems and payment solutions, partnering with lenders for credit services, without guaranteeing loan approval or terms.

OxaPay
OxaPay is a cryptocurrency payment gateway that enables businesses to accept digital currency payments, offers various integration options, and ensures secure transactions.

Copecart
Copecart automates invoice management and collections, enhancing revenue through optimized checkout processes while functioning as a reseller.

PayIt
PayIt is a digital payment platform that simplifies transactions for state and local government agencies, improving payment processes for residents.

Mamo Pay
Mamo Pay is a payment platform for SMEs in the UAE, allowing users to create payment links, generate QR codes, automate invoices, and manage transactions securely.

Clip
The Clip app enables businesses to accept credit and debit cards, vouchers, points, and mobile payments like Apple Pay and Samsung Pay.

InfinitePay
InfinitePay is a mobile payment app that enables users to accept card payments and process transactions seamlessly via Tap to Pay on iPhones.

Laybuy Merchant
The Laybuy Merchant app allows businesses to offer customers the option to pay in 6 interest-free installments, facilitating secure transactions and immediate payouts.