Info - https://mgarciate.github.io/ethgas-webpage
ETHGas Alerts is an application that alerts you when the value of Gas in Gwei is below (or above) a value indicated by the user on the Ethereum network.
The application allows multiple alerts to be set, and when the Gas fee exceeds a given value, the user will receive a push notification on all their devices registered with the same account.
Powered by ethgasstation API.
The login via Apple Sign In is required to manage alerts and receive push notifications on all devices registered with the same account.