Total Products under this Category: 754
Last updated: September 01, 2026
Why You Can Trust G2's Software Rankings:
G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.
Highlighted products: PayPal Payments, Amazon Pay for Business, Venmo, BILL AP/AR, Adyen Payments, PayPal Checkout, Stripe Payments, and Nickel.
Underlying data: [Grid® JSON](https://www.g2.com/categories/payment-processing/grids.json?focus%5B%5D=paypal&focus%5B%5D=amazon-pay-for-business&focus%5B%5D=paypal-venmo&focus%5B%5D=bill-ap-ar&focus%5B%5D=adyen-payments&focus%5B%5D=paypal-checkout&focus%5B%5D=stripe-stripe-payments&focus%5B%5D=nickel)
The Incharge platform offers merchants a fast and safe checkout solution. Customers can opt for scanning the CR-code during checkout and pay using their card or via direct SEPA transfer. Best of all, merchants receive their payment account immediately and without any fees.
Incusia is invoicing software for small business owners, freelancers, and consultants who need to send professional invoices and get paid without dealing with complicated accounting software. Built on one promise: the price you sign up at is the price you pay forever. No annual increases. No hidden cancel button. No invoice caps designed to force upgrades. This is written contractually in the Terms of Service. Starting at $9 per month for unlimited invoices, unlimited clients, PDF exports, and payment collection. Pro tier at $29 per month adds automated reminders, recurring invoices, and multi-currency support. Lifetime option available at $99 one time. Also includes 10 free tools that require no signup: full invoice generator with PDF download, late fee calculator, freelance rate calculator, VAT calculator, receipt maker, estimate generator, purchase order generator, invoice number generator, payment terms generator, and Excel to PDF converter.
Index PPS provides secure payment processing solutions for businesses of all sizes. From credit card processing and digital payments to merchant services and payment gateway integration, we help companies accept payments quickly, securely, and efficiently while ensuring compliance with industry security standards.
Infinicept is a fast-growing, Denver-based fintech company that help B2B software companies become payment facilitators. Our industry-leading PayOps™ (payment operations) platform acts as your infrastructure and enables your business to get all the benefits of owning your own payments product without doing it all yourself. Our made-to-order underwriting, back office, and risk monitoring platform simplifies clients’ payment facilitation set-up process to minimize processing costs and focus on what they do best: running a successful business.
Ingo Payments is on a mission to make money movement instant, digital and secure. Since 2001, Ingo has focused on a singular mission: to give people and businesses instant, digital and secure access to their money. Anytime. Anywhere. In any account they choose. Ingo Payments provides embedded API and iframe-supported payment solutions and delivers fully digital, cloud-based platforms that bridge the gap between legacy payments infrastructure and new payments technologies to deliver modern, bespoke payment experiences. You can count on us to tailor our platform and services to meet your needs.
Our vision at InLoop is to improve lives by making the complex simple. With smart, open and dynamic technology and intelligence solutions, we power transactional ecosystems and take the friction out of the payment process across healthcare, disability, aged care, schools, government and corporate Australia. Across our brands Flexischools, LanternPay and Nuonic, our work ensures that the focus can be on the efficient provision of services and care.
Inovio is the revolutionary new payments gateway offering seamless integration and global scalability. Its omni-channel platform adapts to any payment experience with industry innovations that bring simplicity to an often confusing process.
Average Rating: 1.5/5.0
Total Reviews: 1
Intelligent Contacts’ Intelligent Portal gives businesses the ability to present settlement offers or fixed installment plans OR allow consumers to virtually negotiate their own (according to your client-specific business rules). Dynamic account-level legal disclosures State-specific Mini Miranda disclosures Customizable consumer privacy policies pages Opt-in / opt-out consent tracking and management Mobile-First, Responsive Design Set your own parameters for settlement length, payment frequency, required down payment, and minimum amount accepted. Give consumers the ability to view, print, or download statements or other documents online. Reduce print & mailing costs by encouraging consumers to go paperless!
Interkassa is an international payment aggregator. The service combines 70+ payment methods for accepting payments on websites, in-app or cashless offline. Interkassa serves over 4,000 businesses in Ukraine, CIS countries (except russia and belarus), Europe, Latin America, Africa and Asia. The platform offers a quick integration process via API or ready-made CMS plugin, flexible pricing plans and round-the-clock support.
Introwise is a cloud-based platform that helps users manage their scheduling, payments and video calls. It offers an all-in-one tool for knowledge-based professionals to start and grow their business online. In just a few minutes you can create a booking page with a custom design, define your services and pricing, add your availability and connect calendars, setup payment processing using Stripe or PayPal. Once setup, simply share your Introwise link with your current or prospective clients to start getting free or paid bookings and have video calls directly on the platform - no extra downloads needed. Introwise combines scheduling with everything you need to grow your business: group sessions, packages of services, discount codes, local payment methods, custom domain support and much more.
ioumi is a contract and payment automation platform that unifies proposals, contracts, payments, and invoicing into a single workflow, reducing manual tasks and streamlining the sales process. Its Deals feature enables customized proposals with flexible payment schedules, eIDAS-compliant digital signatures, and automated invoicing. Payment Links allows quick creation of checkout links with options like subscriptions or installments. The platform supports template-based offer creation, real-time financial forecasting, and complex payment models, including milestones, manual triggers, relative triggers and recurring subscriptions. Custom branding reflects business identity, while integration options include API access, webhooks, and tools like Zapier. Team collaboration features enable multi-user access and commission tracking. Payments are processed internally, with funds distributed weekly after settlement.
iPaymer is a platform that helps you to provide convenient payment experice to anything you buy. iPaymer enables you to pay any type of card you own, without any hassle, but in the fastest possible way, and you can do it 24/7.
