> For the complete documentation index, see [llms.txt](https://docs.spydra.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.spydra.app/products-overview/private-network/apps.md).

# Apps

Apps are computer programs that are stored on the blockchain as smart contracts. They are designed to implement specific business use cases and can be deployed on various networks. These applications are a secure and transparent way to execute transactions and processes. By utilizing blockchain technology, businesses can ensure the reliability and immutability of their data while maintaining a high level of privacy and security. 

Additionally, these apps can operate autonomously, interact with your existing tech stach with REST APIs and operate based on predefined rules, reducing the need for intermediaries and increasing efficiency. Overall, the use of blockchain apps can revolutionize the way businesses operate and interact with each other.

**There are 2 types of apps**

1. [Pre-Configured Apps](/products-overview/private-network/apps/pre-configured-apps.md)
2. [Custom Apps](/products-overview/private-network/apps/custom-apps.md)