TxHash, Blockchain as a Service, is the easiest way to get notified about blockchain payments, transactions and smart contract events on your apps. Monitor and keep track of any address. Notify your services and APIs with a few clicks using webhooks, emails or IFTTT. Currently supporting Bitcoin, Litecoin, Ethereum and Smart Contracts.
Comment Convert
Been using it for the last few weeks to integrate Ethereum blockchain events with Slack notifications
Pros:Easy to use, even for non technical users
Cons:Needs more apps, which will come in time