We added a custom transaction.confirmed event which gets fired when a transaction is confirmed for a configurable amount of times. This can be used by exchanges to add funds to a wallet after 10 network confirmations for example.
A notification service which emails you when your delegate loses forging power.
A loyalty program on the blockchain using ARK technology.
A bridgechain plugin which forwards blockchain events through WebSockets enabling real-time data transfer to applications.
A solution which enables developers to use the ARK crypto package in Chrome and Safari browsers.
Link to Github repository