Chargebee is a popular subscription management and recurring billing platform favored by growing SaaS companies, but as businesses expand, they may seek alternatives that offer more advanced billing models, integrations, or open-source options. Lago, an open-source billing infrastructure, provides extensive flexibility and integration capabilities, suitable for complex billing needs. Recurly focuses on subscription management with features tailored for customer retention, while Stripe Billing offers a straightforward solution integrated with the Stripe ecosystem. Zoho Subscriptions is part of the Zoho suite, offering basic subscription management for smaller businesses. Paddle provides a full-service billing platform with built-in tax compliance, ideal for global SaaS operations, whereas Zuora caters to large enterprises needing advanced subscription management and ERP/CRM integration. Additionally, some companies opt to develop custom billing systems for maximum control, despite the high development and maintenance costs. Lago is highlighted as a strong alternative to Chargebee, offering open-source flexibility, integration agnosticism, and advanced billing models for businesses with evolving needs.