The best tool I can recommend is Steemworld.org.
It can detect all transactions in your account, not just in your Steem wallet. Everything from upvotes, comments, author rewards, and wallet transfers, are monitored in real time. You will even get notifications if you have been mentioned by other accounts or if someone new has started following. And if you want to see what's going on in someone else's account, you can use it, too.
Personally, I think it is the best tool to monitor your account in Steemit, hands down. To use it, you just need to visit their website and leave the tab open in your browser. It will automatically update as events happen in your account.
You can give it a try by visiting: