That is a really good looking app. I like the color / value overlay and the simple, clean interface.
Don't let the low first day sales discourage you. I saw my biggest spike on the 2nd day of sales. I think it has to do with how long it takes to percolate through to all the international App Stores.
If you just released yesterday, you should go into iTunes Connect and tweak your release date to reflect that. Your app is on the 3rd page of your category already, and that is going to severely hamper you sales. (The pages are ordered by release date by default.) I've noticed my sales decline as my app slips further back into the deeper pages of my category. Once you hit about page 10 or so, consider doing a trivial update so you can land back on page 1 of your category.
Lastly, for what it's worth, I think it's a little overpriced for what you're selling. Most of the apps that compete with you in this niche are at the 0.99 price point. In fact, there's one that's very similar (but much uglier) for free.
At any rate, I bought it and left you a 5 star review, since it does exactly what you claim. I feel every independent iPhone developer should have a few people setting the bar high on the first few reviews. Best of luck!
