Best Payment Processing Software - Page 21

How Many Payment Processing Software Products Does G2 Track?

Total Products under this Category: 1,085

Category Stats (Nov 2026)

  • Average Rating: 4.36/5 (↓0.01 vs Oct 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: MoonClerk (+2.32%) - Among all products in this category, MoonClerk recorded the largest rating increase compared to last month

Last updated: November 01, 2026

How Does G2 Rank Payment Processing Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 38,400+ Authentic Reviews
  • 1,085+ Products
  • Unbiased 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.

G2 Grid® for Payment Processing Software

G2 Grid® for Payment Processing Software plotting products by satisfaction and market presence

Highlighted products: PayPal Payments, Amazon Pay for Business, Venmo, BILL AP/AR, PayPal Checkout, Adyen Payments, Nickel, and Stripe Payments.

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=paypal-checkout&focus%5B%5D=adyen-payments&focus%5B%5D=nickel&focus%5B%5D=stripe-stripe-payments)

Affinity Member Services Platform

Affinity Member Services is a business solutions platform helping small businesses cut costs, access capital, and grow. Our platform delivers payment processing and point of sale solutions, business financing programs, and marketing solutions — all tailored to your business. We understand that every business is different. We don’t believe in one-size-fits-all — we pair every member with personalized solutions and hands-on support. Our membership approach allows us to bring exclusive benefits and advantages to small businesses that others simply can’t.

Who Is the Company Behind Affinity Member Services Platform?

Agicap

Agicap is the leading all-in-one modular Cash Flow and Treasury Management platform worldwide. Our AI-powered platform offers a Cash Flow Management core solution (bank connectivity, cash balancing, cash forecasts). It also includes a complete range of Accounts Payable and Accounts Receivable automation solutions in order to improve your company's cash performance: supplier invoice management, card spend management, cash collection, DSO analytics, etc. Agicap integrates and consolidates data from multiple sources and develops synergies between Products to meet all your cash challenges. - Banking Connectivity - Accounting Software & ERP Connectivity - Cash Flow Management - Cash Flow Planning - Accounts Payables Automation - Accounts Receivables Automation Since 2016, +8 000 SMEs and Mid-Market customers all across the world trust us. U.S. office: Austin (TX) European offices: Lyon (FR), Berlin (DE), Milan (IT), London (UK), and Barcelona (ES)

Average Rating: 4.4/5.0

Total Reviews: 382

How Do G2 Users Rate Agicap?

  • Has the product been a good partner in doing business?: 8.8/10 (Category avg: 8.8/10)

Who Is the Company Behind Agicap?

  • Seller: Agicap
  • Company Website:
  • Year Founded: 2016
  • HQ Location: Lyon, FR
  • LinkedIn® Page: www.linkedin.com
    812 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: CFO, CEO
  • Top Industries: Accounting, Computer Software
  • Company Size: 51% Small, 43% Medium

What Do G2 Reviewers Say About Agicap?

AI-generated summary from verified user reviews

Pros
  • Users value the intuitive and user-friendly interface of Agicap, enhancing cash management and financial planning significantly.
  • Users commend Agicap's excellent customer support, highlighting its efficiency and tailored assistance for successful implementation.
  • Users appreciate the intuitive and powerful platform of Agicap, which simplifies cash management and enhances financial planning.
  • Users value the intuitive and user-friendly cash management features of Agicap, enhancing financial planning and transparency.
  • Users appreciate the efficiency of Agicap, streamlining cash management and enhancing financial planning with intuitive tools.
Cons
  • Users often face integration issues with Agicap, particularly during setup and in syncing with existing systems.
  • Users find the missing features in Agicap, like advanced reporting and better API, hinder effective usage.
  • Users feel that Agicap lacks limited customization options, making advanced setups and reports less adaptable to complex needs.
  • Users find the difficult setup of Agicap challenging, particularly when aligning accounts and features with their ERP.
  • Users experience sluggish implementation and feature management issues with Agicap, hindering effective use and productivity.

What Are Recent G2 Reviews of Agicap?

What Are G2 Users Discussing About Agicap?

Aigens Pay

Who Is the Company Behind Aigens Pay?

  • Seller: Aigens
  • Year Founded: 2012
  • HQ Location: Hong Kong, HK
  • LinkedIn® Page: www.linkedin.com
    77 employees on LinkedIn®

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Airpay

Airpay offers payment processing services and solutions.

Who Is the Company Behind Airpay?

Aiwyn Payments Automation

Who Is the Company Behind Aiwyn Payments Automation?

  • Seller: Aiwyn
  • Year Founded: 2020
  • HQ Location: Charlotte, North Carolina, United States
  • LinkedIn® Page: www.linkedin.com
    165 employees on LinkedIn®
  • Phone: (704) 312-2680

Alboom Pay

Who Is the Company Behind Alboom Pay?

  • Seller: Alboom
  • Year Founded: 2015
  • HQ Location: Jasper, IN, USA
  • LinkedIn® Page: www.linkedin.com
    73 employees on LinkedIn®

ALFAcoins

ALFAcoins is a secure payment processor and crypto payment gateway for merchants who aim to accept cryptocurrencies. It easily integrates into your website or existing payment flow, with an API, widgets and e-commerce plugins. • Comprehensive Cryptoprocessing for your Store: Send and receive the most popular cryptocurrencies. • 5 Minute Integration: Drag'n'drop our widget or plug into our feature-rich API. • Accounting Tooling: Export transaction data into your favorite services. • 24/7 Support

Average Rating: 4.0/5.0

Total Reviews: 1

Who Is the Company Behind ALFAcoins?

What Are Recent G2 Reviews of ALFAcoins?

What Are G2 Users Discussing About ALFAcoins?

Alma

Whether in-store or online, Alma gives your customers the freedom to pay at their rhythm. Pay in full, in instalments, or pay later. It's simple and flexible.

Who Is the Company Behind Alma?

  • Seller: Alma
  • Year Founded: 2018
  • HQ Location: Neuilly-sur-Seine, FR
  • LinkedIn® Page: www.linkedin.com
    501 employees on LinkedIn®

AltoPay

AltoPay is a global payment solution provider. We simplify the complexities of payments so businesses can grow with confidence.

Who Is the Company Behind AltoPay?

  • Seller: AltoPay
  • Year Founded: 2010
  • HQ Location: Miami, US
  • LinkedIn® Page: www.linkedin.com
    12 employees on LinkedIn®

Amaryllis

Amaryllis offers a comprehensive, cloud-based Payment Facilitation platform designed to empower financial institutions, software companies, and SaaS providers to efficiently monetize the payments flowing through their systems. By providing an all-in-one solution, Amaryllis enables businesses to underwrite merchants, accept credit card and ACH payments, split fees, and manage payouts without the need for extensive in-house development or multiple vendor integrations. This approach allows companies to rapidly enter the market, enhance their revenue streams, and increase their overall business valuation. Key Features and Functionality: - White-Label Solution: Customize and control the merchant experience by branding the platform to align with your company's identity, ensuring a seamless user experience. - Modular Design: Utilize a flexible, modular architecture that allows for easy customization and scalability, enabling businesses to implement only the features they need and adapt as they grow. - Seamless Integration: Integrate effortlessly with existing systems through API-driven solutions, allowing for the use of Amaryllis as a gateway or the incorporation of existing gateways into the platform. - Merchant Onboarding: Streamline the onboarding process with minimal data requirements, supporting rapid growth while maintaining compliance with risk and regulatory standards. - Transaction Processing: Accept a wide range of payment methods, including alternative payments like PayPal and digital wallets, with support for multiple currencies and smart routing to optimize authorizations. - Billing and Payouts: Manage complex billing agreements with configurable split fees and flexible payout schedules, accommodating various business models and financial arrangements. - Risk and Compliance Management: Leverage a comprehensive suite of risk management tools, including fraud detection, alert notifications, and compliance monitoring, to mitigate risks and ensure adherence to regulatory requirements. Primary Value and Solutions Provided: Amaryllis addresses the challenges businesses face in managing complex payment processes by offering a unified, customizable platform that simplifies payment facilitation. By eliminating the need for multiple vendors and reducing reliance on internal IT resources, Amaryllis enables companies to: - Accelerate Time to Market: Launch payment facilitation capabilities within weeks, allowing businesses to quickly capitalize on new revenue opportunities. - Enhance Revenue Streams: Monetize the payments processed through their platforms, leading to increased revenue and higher business valuations. - Improve Customer Experience: Offer a superior buying experience by embedding seamless payment processes into their products, fostering customer satisfaction and loyalty. - Ensure Compliance and Security: Maintain compliance with industry standards such as PCI, GDPR, and SOC, providing peace of mind and reducing the risk of regulatory issues. By leveraging Amaryllis's platform, businesses can efficiently manage their payment operations, reduce operational costs, and focus on core growth initiatives without the complexities traditionally associated with payment facilitation.

Who Is the Company Behind Amaryllis?

  • Seller: Amaryllis
  • Year Founded: 2011
  • HQ Location: West Palm Beach, US
  • LinkedIn® Page: www.linkedin.com
    47 employees on LinkedIn®

Anchor

Anchor is billing and payments automation software for accounting firms, bookkeepers, and professional service businesses. It combines proposals, engagement letters, agreements, automated billing, and payment collection in one platform Helping service businesses get paid on time, every time effortlessly. With no subscription fees. Syncing proposals, agreements, billing, and payments into one seamless workflow. Clients are auto-billed and auto-charged based on dynamic agreements, and everything syncs in real time with your general ledger. Designed for accountants, consultants, agencies, and service providers, Anchor eliminates manual billing tasks, reduces human error, and helps prevent revenue leakage. • Close deals faster with branded online proposals • Send flexible agreements that evolve with scope and terms • Automate billing: recurring, hourly, fixed, or one-time • Accept ACH or credit cards with adjustable fee settings • Collaborate via roles, permissions, and audit trails • Give clients a self-serve portal and automated reminders • Sync with QuickBooks Online, Xero and 5,000+ apps via Zapier Just $5 per payment. No subscriptions. No limits.

Average Rating: 4.9/5.0

Total Reviews: 130

How Do G2 Users Rate Anchor?

  • Has the product been a good partner in doing business?: 9.8/10 (Category avg: 8.8/10)

Who Is the Company Behind Anchor?

  • Seller: Anchor
  • Company Website:
  • Year Founded: 2021
  • HQ Location: New York, US
  • LinkedIn® Page: www.linkedin.com
    124 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Owner, CEO
  • Top Industries: Accounting, Marketing and Advertising
  • Company Size: 98% Small, 2% Medium

What Do G2 Reviewers Say About Anchor?

AI-generated summary from verified user reviews

Pros
  • Users love how time-saving Anchor is, allowing quick proposal sending right after Discovery Calls without delays.
  • Users value the ease of use of Anchor, appreciating its mobile-friendliness and efficient proposal management.
  • Users value the automation features of Anchor, allowing for quick proposal creation and seamless integrations with workflows.
  • Users value the efficiency of Anchor, enjoying quick proposal creation and seamless integrations that enhance workflow.
  • Users value the flexibility of Anchor, enabling easy customization and efficient management of billing and payments.
Cons
  • Users report payment issues, including complexities with service splitting and concerns over Plaid's excessive permissions.
  • Users note processing delays have improved, but desire next day funding for a better experience.
  • Users desire greater customization options for email reminders and agreements, seeking more control over communications.
  • Users note a steep learning curve with Anchor, requiring time and effort to set up effectively.
  • Users note a 10-day delay in payouts via ACH, although improvements have been made to funding speeds.

What Are Recent G2 Reviews of Anchor?

A-Pay

Start accepting payments from users in Asia and Africa in 1 day. Process VISA, Mastercard and 100+ local payment methods. Increase profitability with expanded geography and improved payment conversion.

Who Is the Company Behind A-Pay?

ApprovalMax

ApprovalMax is Accounts Payable approval software for finance teams using QuickBooks Online, Xero, and NetSuite. Trusted by 20,000+ businesses around the world, it sits between your accounting platform and every outgoing payment, making sure nothing moves without the right sign-off, at the right level, with the right documentation attached. Finance teams that outgrow email-based approvals use ApprovalMax to automate the entire approval process – from bills and purchase orders to expenses, credit notes, and batch payments. Approval workflows route automatically based on rules you define. Approvers act from any device. And every decision generates a permanent, time-stamped record without anyone having to compile it. What ApprovalMax does - Routes invoices and purchase orders to the correct approvers automatically, based on vendor, amount, department, or any combination of your own policies - Checks every bill against supplier history and flags anomalies before approval – unusual amounts, billing frequency jumps, mismatched coding, or a supplier you've never paid before. - Flags duplicate invoices, alerts finance teams when vendor bank details change, and enforces coding rules at the point of approval – before money moves - Shows live budget impact to approvers at the moment of decision, so overspend is prevented rather than explained after the fact - Generates an immutable audit trail for every approval: who approved, what they reviewed, and when each step occurred - Scales from simple single-step workflows to multi-tiered, multi-entity approval chains – without requiring approvers to hold licenses in your accounting platform Who uses it ApprovalMax is used by in-house finance teams, controllers, CFOs, and the accountants and bookkeepers who support them. It's designed for businesses that need structured, enforceable approval controls – and that can't afford to find out what slipped through after the fact. For finance teams, it removes the manual chase and replaces it with workflows that run in the background. For finance leaders, it provides governance they can demonstrate to auditors, boards, and investors on demand. For accountants, it's a single platform that works across every client.

Average Rating: 4.6/5.0

Total Reviews: 98

How Do G2 Users Rate ApprovalMax?

  • Has the product been a good partner in doing business?: 9.4/10 (Category avg: 8.8/10)

Who Is the Company Behind ApprovalMax?

  • Seller: ApprovalMax
  • Company Website:
  • Year Founded: 2016
  • HQ Location: London, GB
  • LinkedIn® Page: www.linkedin.com
    134 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Accountant
  • Top Industries: Accounting, Health, Wellness and Fitness
  • Company Size: 57% Small, 34% Medium

What Do G2 Reviewers Say About ApprovalMax?

AI-generated summary from verified user reviews

Pros
  • Users value the efficient approval process of ApprovalMax, ensuring smooth flow and effective transaction management.
  • Users appreciate the ease of use of ApprovalMax, enhancing workflow efficiency and simplifying approval processes.
  • Users appreciate the easy integrations of ApprovalMax, enabling seamless workflows with tools like Xero and QuickBooks.
  • Users appreciate the streamlined efficiency of ApprovalMax, enhancing approval workflows and financial transaction monitoring.
  • Users appreciate the seamless integrations of ApprovalMax, enhancing workflow connectivity with accounting tools like Xero and QuickBooks.
Cons
  • Users face missing features and difficulties with 2FA, approval reassignment, and limited expense handling in ApprovalMax.
  • Users face approval issues that complicate workflow setup, leading to frustrations with reassignments and missing approvers.
  • Users face challenges with data management issues such as 2FA complications and workflow reassignments, complicating user experience.
  • Users experience limitations with expenses and approval automation, causing frustration and rework when submitting bills.
  • Users express frustration over the lack of communication features, making it hard to track feedback and support requests.

What Are Recent G2 Reviews of ApprovalMax?

Subhransu Sahu
SS
Researched and written by Subhransu Sahu
Updated April 9, 2026