Thanks for the feedback. Looking at adding other exchanges along with additional currencies.  Response has been overwhelming so far.

Thanks for the feedback. I have been thinking about percentage change, but I'm also trying to keep the interface as simple as possible.  Perhaps one thing I could do is show the percentage difference after the user enters a price target.  Eg if the current price is 900 and the user enters 990 it could show (+10%).

Thanks.  EUR for sure, very soon.  If you click on Alerts and register you can delete existing alerts.  I kept it as simple as possible since you can add as many alerts as you like.  For example I have alerts for:

above 1000
above 1100
above 1200
below 600
below 500
below 400

Right now just USD but will add EUR/GBP etc soon.  Let me know which other currencies I should add.

Just launched this new web app. Lets users set price target and receive email alerts when bitcoin price goes above/below target.

Developed in 3 days using Laravel, MySQL, Bootstrap.  Feedback appreciated.

http://bitwat.ch

Free. No registration required.

http://bitwat.ch/