Yoroi is an open-source Cardano and Ergo wallet developed and maintained by Emergo, one of the founding entities of Cardano. Yoroi is good for sending and receiving ADA, voting on Project Catalyst proposals, and managing your stakepool delegation. Yoroi is classified as a light wallet because it doesn’t run the entire blockchain in your browser or mobile device, but instead connects to Emergo servers remotely to read and post transactions to the Cardano network.
Yoroi has been around since 2018, with no known security incidents to date. Because Yoroi is a light wallet, getting started, creating a passphrase, and beginning your Cardano journey takes less than 10 minutes.
With the Yoroi mobile app for android and iphone you can check your balance, buy and send NFTs, and do all of the same things you can do with Yoroi desktop.
When things go awry, you can get support by sending a message via Yoroi's website. Yoroi also encourages the use of the Cardano forum and the Cardano Community Tech Support Telegram “Lobby” for support.