# Top Free Installment Payment and Buy Now Pay Later (BNPL) Software

## How Many Installment Payment and Buy Now Pay Later (BNPL) Software Products Does G2 Track?

**Total Products under this Category:** 66

### Category Stats (Aug 2026)

- **Average Rating:** 4.41/5 The average rating of products in this category, based on all submitted ratings
- **Top Trending Product:** Ratio (+3.28%) - Among all products in this category, Ratio recorded the largest rating increase compared to last month

_Last updated: August 05, 2026_

## How Does G2 Rank Installment Payment and Buy Now Pay Later (BNPL) Software Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 3,900+ Authentic Reviews
- 66+ 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 Installment Payment and Buy Now Pay Later (BNPL) Software
 ![G2 Grid® for Installment Payment and Buy Now Pay Later (BNPL) Software plotting products by satisfaction and market presence](https://www.g2.com/categories/installment-payment-and-buy-now-pay-later-bnpl/grids.png?focus%5B%5D=1222&focus%5B%5D=107452&focus%5B%5D=75417&focus%5B%5D=87565&focus%5B%5D=87566&focus%5B%5D=122728&focus%5B%5D=10629&focus%5B%5D=21400)

Highlighted products: PayPal Payments, Sunbit, Affirm, Afterpay, Sezzle, Zip for Business, Klarna, and GoCardless.

Underlying data: [Grid® JSON](https://www.g2.com/categories/installment-payment-and-buy-now-pay-later-bnpl/grids.json?focus%5B%5D=paypal&focus%5B%5D=sunbit&focus%5B%5D=affirm&focus%5B%5D=afterpay&focus%5B%5D=sezzle&focus%5B%5D=zip-for-business&focus%5B%5D=klarna&focus%5B%5D=gocardless)

**Sponsored**

### Zamp

Zamp is a fully managed sales tax compliance platform designed for modern digital businesses. After regulatory changes pushed enterprise-level complexity onto growing companies, Zamp was built to eliminate the burden entirely. Combining intelligent automation with a dedicated team of tax specialists, Zamp manages calculations, nexus tracking, registrations, filings, and state notices from start to finish. Unlike DIY tax software, Zamp owns both the work and the outcome, providing accuracy, predictable pricing, and ongoing support. The result is simple: businesses remain compliant without building internal tax expertise, allowing finance and operations teams to stay focused on scaling the business instead of managing tax compliance. The landscape of sales tax compliance is intricate and ever-evolving, which can pose significant challenges for businesses of all sizes. Zamp addresses these challenges by automatically monitoring nexus thresholds, tax rates, and reporting requirements across all U.S. states, Canadian provinces, and various international jurisdictions. This ensures that your business remains compliant as it expands, allowing you to focus on growth without the constant worry of changing tax regulations. Zamp caters to a diverse target audience, particularly e-commerce and software businesses that operate across multiple sales channels. One of the key features of Zamp is its dedicated onboarding specialist, who assists in setting up your account and connecting all sales channels accurately from the outset. This personalized approach ensures that every detail is meticulously handled, setting the foundation for smooth operations. The platform offers white-glove service, meaning that Zamp's team takes care of all aspects of sales tax management, including nexus tracking, tax calculations, state registrations, filings, and remittances. This comprehensive service allows businesses to concentrate on their core activities without the distraction of sales tax compliance. Additionally, Zamp provides multi-channel coverage by integrating seamlessly with popular platforms like Shopify, Amazon, Magento, BigCommerce, QuickBooks, and NetSuite, ensuring that tax data flows automatically across all systems. Another significant advantage of Zamp is its risk monitoring and alerts feature, which proactively tracks compliance changes and notifies users before potential issues arise. This proactive approach helps businesses stay ahead of requirements, minimizing the risk of non-compliance. Furthermore, Zamp's transparent pricing structure eliminates hidden fees or unexpected charges, providing a clear and predictable cost for complete sales tax management. As businesses scale their operations, Zamp offers the software and service necessary to maintain compliance and confidence in their sales tax processes.

[Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=1578&secure%5Bchosen_at%5D=2026-08-07T15%3A00%3A52Z&secure%5Bdisplayable_resource_id%5D=1235&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=1302167&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=1302167&secure%5Bresource_id%5D=1578&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Finstallment-payment-and-buy-now-pay-later-bnpl%2Ffree&secure%5Btoken%5D=4eaa91af4b568c66cb021b31e48fd655e2029caae649d326156ecbb0118b75d0&secure%5Burl%5D=https%3A%2F%2Fzamp.com%3Futm_source%3Dg2%26utm_medium%3Dppc&secure%5Burl_type%5D=custom_url)

### [Capchase](https://www.g2.com/products/capchase/reviews)

Capchase Pay is a B2B payment and financing solution designed to improve the buying and selling of software and hardware by streamlining the payment process. This innovative platform allows customers to pay over time according to their preferences while enabling businesses to receive the total contract value (TCV) upfront for annual and multi-year agreements. By offloading the billing and collections process to Capchase, companies can focus on their core operations while increasing their cash flow. Targeted primarily at businesses engaged in software and hardware sales, Capchase Pay addresses the common challenges associated with payment processing and customer financing. It is particularly beneficial for companies looking to close more deals by offering flexible payment options that cater to their customers' financial needs. The solution is designed to simplify the buying experience, making it easier for customers to commit to larger purchases without the burden of immediate full payment. One of the standout features of Capchase Pay is its ability to provide immediate access to booked revenue. By receiving the total contract value upfront, businesses can improve their cash flow and reinvest in growth opportunities without delay. This feature is crucial for companies that rely on predictable revenue streams and need to maintain a healthy financial position. Additionally, the platform integrates seamlessly with existing systems such as CRM and accounting software, ensuring a smooth transition and minimal disruption to current workflows. Capchase Pay also offers a user-friendly setup process, allowing businesses to implement the solution in less than 24 hours without any obligations or minimum usage requirements. There are no one-time or integration fees, making it an accessible option for businesses of all sizes. Furthermore, the solution is available internationally across nine countries and currencies, expanding its reach and usability for global enterprises. By incorporating Capchase Pay into their payment processes, businesses can enhance customer satisfaction through flexible payment options while simultaneously improving their operational efficiency. The ability to streamline billing and collections not only saves time but also allows companies to focus on building relationships with their customers and driving sales growth.

**Average Rating:** 4.5/5.0

**Total Reviews:** 43

#### How Do G2 Users Rate Capchase?

- **Quality of Support:** 9.5/10 (Category avg: 8.5/10)
- **Payment Scheduling:** 8.8/10 (Category avg: 8.9/10)
- **Loyalty Management:** 7.2/10 (Category avg: 8.3/10)
- **E-commerce Integration:** 7.8/10 (Category avg: 8.7/10)

#### Who Is the Company Behind Capchase?

- **Seller:** [Capchase](https://www.g2.com/sellers/capchase)
- **Year Founded:** 2020
- **HQ Location:** New York, New York
- **Twitter:** @Capchase  
2,443 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=88a1b822abbee863e9983c8c28ce5074207e033f1f66368c1e6ce12f31555375&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fcapchase%2F&secure%5Burl_type%5D=linkedin_company_website)  
99 employees on LinkedIn®

#### Who Uses This Product?

- **Who Uses This:** Account Executive
- **Top Industries:** Computer Software, Hospital & Health Care
- **Company Size:** 77% Medium, 19% Small

#### What Do G2 Reviewers Say About Capchase?

_AI-generated summary from verified user reviews_

##### Pros

- Users find Capchase easy to navigate, appreciating its **ease of use** and responsive customer support.
- Users appreciate the **flexible payment options** from Capchase, enhancing customer experience and easing sales processes.
- Users appreciate the **simple and clean user interface** of Capchase, enhancing their overall experience significantly.
- Users value the **flexibility** Capchase provides, facilitating convenient payment options and quick support for adjustments.
- Users value the **fast and responsive customer support** of Capchase, enhancing flexibility and team collaboration.

##### Cons

- Users report a **lack of clarity** in the portal and reporting features, hindering effective navigation and understanding.
- Users find the **approval process finicky** , often leading to delays in getting buyer confirmations.
- Users experience **occasional technical issues** , including bugs and delays in updates, but support resolves them quickly.
- Users express concern over **limited availability** , which affects their access to essential features and services.
- Users often face **payment issues** with Capchase, complicating client renewals and leading to unnecessary delays.

#### What Are Recent G2 Reviews of Capchase?

**["Aggressive Rates, Flexible Terms, and a Streamlined UI"](https://www.g2.com/survey_responses/capchase-review-12700127)**

**Rating:** 5.0/5.0 stars

_— Verified User in Information Technology and Services_

[Read full review](https://www.g2.com/survey_responses/capchase-review-12700127)

**["Incredibly Easy Process and a Great Experience Overall"](https://www.g2.com/survey_responses/capchase-review-12966651)**

**Rating:** 5.0/5.0 stars

_— Joshua L._

[Read full review](https://www.g2.com/survey_responses/capchase-review-12966651)

#### What Are G2 Users Discussing About Capchase?

- [What is Capchase used for?](https://www.g2.com/discussions/what-is-capchase-used-for)

### [Vartana, a Capchase company](https://www.g2.com/products/vartana-a-capchase-company/reviews)

Vartana, a Capchase company,&nbsp;is an AI-powered B2B enterprise sales and financing platform that enables vendors to close deals at lightning-fast speeds by offering automated credit approvals, flexible payment terms, and a smooth checkout experience.&nbsp;Vartana helps vendors easily configure deals directly from their CRMs like Salesforce, HubSpot, Microsoft Dynamics, and Zoho. Vartana's automation helps vendors seamlessly craft payment options that align with their customer’s needs and close fast.&nbsp;Founded in 2020 by Kush Kella and Ahmed Sharif, acquired by Capchase in 2025.&nbsp; Learn more: https://www.capchase.com/blog/capchase-acquires-vartana

**Average Rating:** 4.9/5.0

**Total Reviews:** 24

#### How Do G2 Users Rate Vartana, a Capchase company?

- **Quality of Support:** 9.7/10 (Category avg: 8.5/10)
- **Payment Scheduling:** 9.4/10 (Category avg: 8.9/10)
- **Loyalty Management:** 9.0/10 (Category avg: 8.3/10)
- **E-commerce Integration:** 9.3/10 (Category avg: 8.7/10)

#### Who Is the Company Behind Vartana, a Capchase company?

- **Seller:** [Capchase](https://www.g2.com/sellers/capchase)
- **Year Founded:** 2020
- **HQ Location:** New York, New York
- **Twitter:** @Capchase  
2,443 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=88a1b822abbee863e9983c8c28ce5074207e033f1f66368c1e6ce12f31555375&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fcapchase%2F&secure%5Burl_type%5D=linkedin_company_website)  
99 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Computer Software
- **Company Size:** 79% Large, 17% Medium

#### What Are Recent G2 Reviews of Vartana, a Capchase company?

**["Quick, Easy, Helps Close Deals"](https://www.g2.com/survey_responses/vartana-a-capchase-company-review-8473098)**

**Rating:** 5.0/5.0 stars

_— Brad H._

[Read full review](https://www.g2.com/survey_responses/vartana-a-capchase-company-review-8473098)

**["Senior Director of Revenue Operations and Accounting"](https://www.g2.com/survey_responses/vartana-a-capchase-company-review-8338950)**

**Rating:** 5.0/5.0 stars

_— Michael K._

[Read full review](https://www.g2.com/survey_responses/vartana-a-capchase-company-review-8338950)

### [Alternative Payments](https://www.g2.com/products/alternative-finance-alternative-payments/reviews)

Alternative Payments is a full-service B2B payments platform that simplifies and automates payments for you and your customers. Offer your customers a white-labeled and secure platform to pay invoices with numerous payment methods (ACH, credit cards, and Pay in Installments). Integrate with leading accounting and PSA software solutions to sync invoices and make auto-reconciliation a breeze. Enable automations like auto-pay and automated email reminders to save you time and collect invoices faster, and unlock data insights to give you complete visibility on payments and better predict cash flow. All in one platform.

**Average Rating:** 4.7/5.0

**Total Reviews:** 11

#### How Do G2 Users Rate Alternative Payments?

- **Quality of Support:** 9.0/10 (Category avg: 8.5/10)
- **Payment Scheduling:** 6.7/10 (Category avg: 8.9/10)
- **Loyalty Management:** 6.7/10 (Category avg: 8.3/10)
- **E-commerce Integration:** 7.5/10 (Category avg: 8.7/10)

#### Who Is the Company Behind Alternative Payments?

- **Seller:** [Alternative Finance](https://www.g2.com/sellers/alternative-finance)
- **Year Founded:** 2021
- **HQ Location:** New York, United States
- **Twitter:** @Alt\_Payments  
16 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7d1d925a130f6bfcb54e846c281fd8f102c044ff025bc294af2e0268944ec65d&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Falternativeco%2F&secure%5Burl_type%5D=linkedin_company_website)  
85 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 82% Small, 9% Large

#### What Are Recent G2 Reviews of Alternative Payments?

**["Saved Me 40+ hours a month"](https://www.g2.com/survey_responses/alternative-payments-review-9465098)**

**Rating:** 5.0/5.0 stars

_— Ryan H._

[Read full review](https://www.g2.com/survey_responses/alternative-payments-review-9465098)

**["Transitioned to Alternative"](https://www.g2.com/survey_responses/alternative-payments-review-9921388)**

**Rating:** 4.0/5.0 stars

_— Jasmine A._

[Read full review](https://www.g2.com/survey_responses/alternative-payments-review-9921388)

### [PayMongo](https://www.g2.com/products/paymongo/reviews)

Paymongo enables businesses with the financial infrastructure to grow their revenue. Starting as a payment gateway, we have expanded our offerings to include a comprehensive digital financial service suite that enables SMEs to store, send, receive, save, and borrow money. Our mission is to empower these businesses to successfully digitalize, contributing to our country’s financial inclusion efforts and transforming the local economy. This strategic digital transformation facilitates SMEs’ access to mainstream financial services, streamlining their operations and fostering economic growth.

#### Who Is the Company Behind PayMongo?

- **Seller:** [PayMongo](https://www.g2.com/sellers/paymongo)
- **Year Founded:** 2019
- **HQ Location:** Taguig, PH
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=d29fa90bf5adfce63cba5c77c74e79f464af74eaae96a850bddbd752ad8dc4ed&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fpaymongo&secure%5Burl_type%5D=linkedin_company_website)  
147 employees on LinkedIn®

### [Usio](https://www.g2.com/products/usio/reviews)

Usio is the payments powerhouse built for organizations that demand more than generic processing. While others try to be everything to everyone, Usio specializes in one thing exceptionally well: powering secure, scalable payment ecosystems for ISVs, SaaS platforms, lenders, healthcare, finance, government, utilities, legal, insurance, fitness, non-profits, associations, and many other organizations that cannot afford friction. This is not patchwork fintech. This is enterprise-grade infrastructure designed to simplify complexity, accelerate revenue, and eliminate the chaos of managing multiple vendors. Embedded payments. Money movement. Card issuing. Disbursements. Billing. Print and Mail. All unified with one intelligent company backed by PCI Level 1, SOC 2, tokenization, and HIPAA-ready security. Organizations choose Usio because growth should not come with operational headaches. They choose Usio because fragmented systems slow companies down. And they choose Usio because when payments become seamless, businesses move faster, scale smarter, and unlock entirely new revenue opportunities.

**Average Rating:** 5.0/5.0

**Total Reviews:** 24

#### How Do G2 Users Rate Usio?

- **Quality of Support:** 9.9/10 (Category avg: 8.5/10)

#### Who Is the Company Behind Usio?

- **Seller:** [Usio](https://www.g2.com/sellers/usio)
- **Company Website:** www.usio.com
- **Year Founded:** 1998
- **HQ Location:** San Antonio, US
- **Twitter:** @usioinc  
283 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=03d4c4b33445b5967f7b0900ce65097b97dde6330be0f812fdea06ee8f7456a0&secure%5Burl%5D=http%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fusioinc&secure%5Burl_type%5D=linkedin_company_website)  
82 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 54% Small, 42% Medium

#### What Do G2 Reviewers Say About Usio?

_AI-generated summary from verified user reviews_

##### Pros

- Users praise USIO for their **exceptional customer support** , noting prompt and helpful assistance when needed.
- Users value the **exceptional corporate culture** and comprehensive solutions offered by Usio, enhancing their overall experience.
- Users find USIO.com to be incredibly **user-friendly** , facilitating efficient payment management for their teams.
- Users appreciate the **helpful staff** of Usio, finding them resourceful and easy to reach for support.
- Users appreciate the **seamless integration capabilities** of Usio, which streamline payment processing with existing systems.

##### Cons

- Users find the **limited payment options** with Usio frustrating, particularly the absence of Venmo integration.

#### What Are Recent G2 Reviews of Usio?

**["Usio: Amazing Customer Service and an Incredibly Easy, Accessible Website"](https://www.g2.com/survey_responses/usio-review-12512258)**

**Rating:** 5.0/5.0 stars

_— Laila A._

[Read full review](https://www.g2.com/survey_responses/usio-review-12512258)

**["Top-Notch Support and a Consistently Positive Experience"](https://www.g2.com/survey_responses/usio-review-12900565)**

**Rating:** 5.0/5.0 stars

_— Jorge J._

[Read full review](https://www.g2.com/survey_responses/usio-review-12900565)

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Similar Categories

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