Crypto wallet provider Zerion has launched a testnet for its upcoming Layer 2 Rollup ZERO Network. Developed using ZKSync's software package ZK Stack, the testnet will be part of the expanding ZKSync ecosystem. The ZERO mainnet is scheduled to launch later this year. Partners including 1inch, Philand, and Dodo Finance are preparing to deploy on the ZERO testnet and eventually go live on the mainnet. The team says it will fully support builders in the ZERO ecosystem, including free API credits and priority placement within the Zerion wallet. This ZK Rollup network is essentially gas-free for users, allowing the use of any token to pay network fees. To achieve this, Zerion has developed a custom payer contract to cover transaction fees for its wallet users.