Peercoin (PPCoin or PPC) is a peer-to-peer cryptocurrency utilizing both proof-of-stake and proof-of-work systems. Developed by Sunny King
License: Open Source
Peercoin focuses on sustainability and low energy consumption, making it ideal for long-term storage of value, while Ethereum offers robust smart contract capabilities and a thriving ecosystem for decentralized applications. The choice between them largely depends on the user's need for sustainability versus functionality.