Announcing: Calc Me Sum 2c - a Scientific Calculator

I've been working on designing and building a product line of calculators under the name Calc Me Sum.  The first calculator in the series is a basic version released under the name Calc Me Sum Free.

Today, I've released the second product in the series, it's the first scientific offering, called Calc Me Sum 2c.  It's available for download from both Amazon AppStore for Android and the Google Play Store.   Calc Me Sum 2c includes a reasonable set of scientific functions while providing a set of colorful themes.

Some of the features Calc Me Sum 2c has are:

Calc Me Sum 2c is the first scientific calculator in the Calc Me Sum series, the calculators designed to be visually appealing as well as intuitive and functional.  With 12 themes and the ability to customize them, the look of your calculator can be distinctly unique.

Calc Me Sum 2c adds many essential math functions while providing feedback based on last equation and saved memory:

Trigonometry functions in degrees and radians
- sin, cos, tan
- sinh, cosh, tanh
- asin, acos, atan
- asinh, acosh, atanh
Roots
- square root
- cube root
- nth root of y
Powers
- x raised to the nth power
- x cubed
- ten raised to the nth power
Euler's constant e raised to the nth power
- Logarithmic functions
- natural log (ln)
- log 10
Random
- A random number between zero and the value entered.

The interface has been upgraded with new goodies, too:

Calculator indicators
- memory
- degrees or radians
- hyperbolic modifier
Results
- The answer to your equation
- The last equation and the answer, below the results
- The value stored in memory
History functions that let you share your math:
- Copy the last answer to the clipboard
- Copy the last equation and answer to the clipboard
- Copy the history to the clipboard
- Share the history
    + Email
    + Google Drive
    + Any program that sends text

Calc Me Sum – the calculators that brighten up your math and with pretty accurate answers, too.

I'm in the process of adding more features, which I'll continue to add in stages and as quickly as possible.  As I've been developing and using it, I've been considering how calculators work, what they're used for, and how data is interacted with.  On top of the user  interface elements, I'm sketching out a plan to incorporate more functions, graphing, complex math equations, and a programming language.

Calc Me Sum 2c works in both portrait and landscape modes.  There are twelve pre-defined themes.  Each theme can be customized by button style (Border, No Border, Gradient), button shape (Rectangle, Round Rectangle, Oval), and font style.  Here are screenshots that highlight the themes: