1. Pricing Model: Chargebee offers a flexible pricing model based on the number of invoices generated, whereas Laravel Spark requires a one-time payment for access to their platform.

2. Customization Options: Chargebee provides extensive customization options for invoicing templates, checkout pages, and customer communication, while Laravel Spark offers limited customization features in comparison.

3. Integration Capabilities: Chargebee offers integrations with a wide range of third-party applications and services, while Laravel Spark primarily focuses on integration with Laravel-specific packages and tools.

4. Support Services: Chargebee provides round-the-clock customer support through various channels, including phone, email, and chat, whereas Laravel Spark offers standard support services with limited availability.

5. Scalability: Chargebee is designed to handle large volumes of transactions and customers, making it suitable for growing businesses, whereas Laravel Spark may have limitations in handling high scalability requirements.

6. Development Experience: Laravel Spark is more developer-focused, providing tools and resources for building subscription-based applications within the Laravel framework, while Chargebee is more user-friendly for non-technical users looking for an out-of-the-box solution.

In Summary, Chargebee offers more flexibility in pricing, customization, and integration capabilities compared to Laravel Spark, which is more developer-centric and may have limitations in scalability for growing businesses.