+Calculator is the simplest to use calculator ever made for iPad. Designed to use the device full screen, +Calculator does not have the complexity of other calculators.

+Calculator is free (no Ads) for a limited time and it comes with ten new mathematical functions (accessible in a scroll view ), five great background skins and two types of buttons.

A free Calculator Game is now available, great to improve your memory capabilities and to teach math to kids.

If you need more functions, please upgrade to the complete version with more than 35 mathematical functions, 16 skins and 8 different button sounds. To update press the button within the app:

Free Version:

Paid Version (in app purchase):

What’s new in version 1.3.0:
-Two sets of buttons: kids (fantastic stuff) and classic
-Several game modes available: the difficulty levels (Normal, Hard and Genius) and three time modes (50, 100 and 150 consecutive math questions).
-Game Center Enabled - compare your results worldwide

What’s new in version 1.2.0:

- Calculator Game: free mathematical game to improve your memory capabilities. Great to teach math tables (x,+,- and÷) to kids, with score and animal sounds available.
- New set of buttons (Gold)

What’s new in version 1.1.0:

- ten new scroll functions (no Ads): %, square root, memory (M+, M-, MC and MR), sin, 10^x, pi and +/-
- favorite functions selection (to set the order in the scroll view)
- favorite skin selection
- new wood skin
- three button sounds: tap, cash and glass.
- upgrade to paid version available with:
a) 35 functions:
%, square root, cubic root, yth root, 1/x, x^3, x^y, 10^x, 2^x, e^x, sin, sin-1, cos, cos-1, tan, tan-1, sinh, sinh-1, cosh, cosh-1, tanh, tanh-1, ln, log, log2, logy, x!, randomize, pi, e, M+, M-, MC, MR and +/-.
b) 16 skins
leather, wood, marble, metal, gold, dollar, heart, etc
c) 8 button sounds
tap, cash, glass, kiss, fart, cat, bird and cow

What’s new in version 1.0.3:
- Gentle sound when pressing buttons
- New artistic skin
- Compatible with iOS 4.3+
What’s new in version 1.0.2:
- New Christmas skin
- Copy/Paste to system pasteboard when pressing display
- Improved change skin button