A couple of weeks ago, Robocat released its beautifully simple weather app, Haze. And now, it has pushed a new update to its other beautifully simple weather app, Thermo.

Actually, Thermo is less a weather app than a dedicated thermometer app. It just shows you the current temperature and how it compares to the temperature the day before.

It also lets you see the temperatures over the past week, month, quarter, or year via a $0.99 in-app purchase for the History view.

And now, following it latest update, Thermo now also offers in-app purchases for themes:

Welcome to the brand new thermo theme store! Now you can purchase entirely new looks for your favorite thermometer. How about a steampunk thermometer? Or a magic vial? Maybe solid gold is more your thing? Check out this fantastic new addition to the Thermo universe and personalize your thermometer today.

Thermo

If you’re tired of the app’s classic theme, you can activate each of the other themes (Steampunk, Simple, Wood, Bling, Magic) for $0.99 each.

The latest update to Thermo also lets you share the temperature by generating a link that also shows what theme you’re using.

In addition, the update includes new animations, bug fixes, and language support for Greek, Hebrew, and Macedonian.

Compatible with iPhone, iPod touch, and iPad running iOS 5.0 or later, the new version of Thermo is available now in the App Store for free.

When Christine reviewed the app upon its release two years ago, she concluded that Thermo makes for a beautiful and simple pocket thermometer.

Formerly an app optimized for iPhone and iPod touch only, Thermo was made universal with native iPad support a year ago.