Payment Processing & SaaS Billing

AD

Adyen

4.7/5.01 verified review

Paid

End-to-end financial technology platform for global enterprise payments and data.

• Unified infrastructure for payments, reconciliation, and financial products.
• High historical uptime and reliability designed for global enterprises.
• Comprehensive single API supporting numerous local and international payment methods.

ST

Stripe

4.6/5.01 verified review

Paid

Global financial infrastructure to accept payments and manage revenue online and in person.

• Powerful API and high-quality technical documentation for developers.
• Native support for over 135 currencies and international payment methods.
• Scalable infrastructure with high availability and rigorous regulatory compliance.

AN

Anrok

4.5/5.01 verified review

Paid·$120/mo

Global sales tax and VAT compliance platform for modern commerce.

• Complete automation of the global tax compliance lifecycle
• Native integration with financial stack via advanced API
• Automated nexus monitoring across multiple jurisdictions

LA

Lago

4.5/5.01 verified review

Paid·Open Source·AGPL-3.0

Open-source billing platform for usage-based, subscription, and hybrid pricing models.

• Open-source architecture allowing self-hosted deployments in private VPCs.
• Native support for complex pricing models like AI token usage and hybrid subscriptions.
• Payment processor agnostic, allowing integration with multiple providers.

10.7kstars on GitHub

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Shopify

4.4/5.01 verified review

Paid·$39/mo

Comprehensive all-in-one e-commerce and payment platform for businesses of all sizes.

• Scalable infrastructure with high availability for traffic surges
• Extensive ecosystem of third-party apps and extensions
• Proprietary integrated payment gateway with multiple providers

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Quaderno

4.4/5.01 verified review

Paid·$29/mo

Automated tax compliance software for sales tax, VAT, and GST in digital platforms.

• Real-time monitoring of international tax thresholds and US economic nexus.
• API tax calculation engine with millisecond responses for checkout workflows.
• Complete automation of electronic invoices and Peppol mandates across jurisdictions.

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Recharge

4.4/5.01 verified review

Paid·$99/mo

Subscription commerce and recurring billing platform for ecommerce stores.

• Advanced automation for recurring billing cycles.
• Deep integration and market presence within Shopify ecosystems.
• Customer self-service portal to help reduce subscriber churn.

TT

Ticket Tailor

4.4/5.01 verified review

Paid

Online ticketing platform with competitive pricing and zero long-term contracts.

• Flexible pricing model based on ticket volume.
• No long-term contracts or mandatory monthly fees.
• Built-in multi-currency and multilingual support.

CH

Chargebee

4.4/5.01 verified review

Paid

Subscription billing, recurring revenue management and financial operations platform for SaaS.

• High flexibility for managing complex multi-tier pricing structures.
• Automated compliance with global accounting standards like ASC 606 and IFRS 15.
• Comprehensive ecosystem of native integrations with major payment gateways and CRMs.

AV

Avalara

4.4/5.01 verified review

Paid·$79/mo

Automated sales tax compliance and filing software for businesses.

• Extensive ecosystem with over 1,400 native integrations for ERPs and billing platforms.
• End-to-end automation spanning tax calculation, reporting, and filing.
• High availability and reliability backed by billions of annual transactions.

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Snipcart

4.4/5.01 verified review

Paid

Add an HTML and JavaScript shopping cart to any existing website or CMS.

• Rapid integration using standardized HTML tags and JavaScript on the frontend.
• Compatible with any technology stack, static site generators, and headless CMS.
• Complete management of webhooks and APIs to synchronize inventory and external systems.

FI

FirstPromoter

4.4/5.01 verified review

Paid·$49/mo

Affiliate, referral, and influencer management software built for SaaS companies.

• Native integration with recurring billing and subscription platforms.
• Support for multiple partner program types including affiliates and referrers.
• Automated calculation and payout processing for commissions.