Overall User Rating

Price: FREE

Requires: webOS 3.0.0

Version: 1.0.3

To view this app on a webOS device, you may go to the HP App Catalog on your device and search for the app by name.

Alternately, you may send yourself an email with the HP App Catalog link to this app. When you click on the link from your device, the App Catalog will display the app details and allow you to install it.

To view this App on your device, enter your webOS Profile email below and click 'Send Email'. An email with an App link will be sent to you that will allow you to view and install the App.

Be sure to click the App link in the email on your webOS device.

Available for:

HP TouchPad


Calculator++ is a free calculator app for HP Touchpad with a simple set of basic calculator functions. A growing suite of special purpose advanced calculators is available as In-App Purchase. The basic free calculator has: Plus, minus, product, division, square root, power-of-two, inverse and memory functions. Use the XXL buttons for easy use in landscape and portrait modes. Use In-App Purchase to extend this app with advanced calculators. Currently available are a Scientific Calculator with a vast function set and a financial calculator that bundles tools for the most common financial calculations. More calculators will be added when we finish developing them. To see a full feature list of the In-App Extensions before downloading this app, search the App Catalog for “Scientific Calculator” and “Financial Calculator”. All In-App Purchase items are at a discounted price compared to the equivalent stand-alone apps! Please send feature requests, bug reports and general feedback to calculator@minderleister.com. We reply to every email, usually within a few hours. Please leave a review in the App Catalog but keep in mind that we cannot reply to those.