ETH is Ether, a popular cryptocurrency generated on the Ethereum blockchain.
You’ll need some Ethereum cryptocurrency (ETH) in a MetaMask wallet in order to tip an author. Currently it’s not possible to tip in other cryptocurrencies, or in dollars or other fiat currencies.
For a comprehensive FAQ to help get you started, please visit our help page, “How to Tip Your Favorite Authors with Cryptocurrency on Popula!”
If you have any questions at all, please let us know!