- added news panel;
- advanced features are unlocked.
- bug fix;
- operator for exponentiation changed to '^' instead of '**'.
- fixed a bug restoring toolbar buttons
in-app store with Expresso Pro Pack:
- ability to calculate expression without using brackets if an expression is on separate line;
- ability to hide/show an expression and show only variable and value.
- fixed a bug preventing typing '[' and accented characters on systems with Spanish layout;
- '%' character calculate percentage now instead of modulo, i.e. you can now do: 250 + 10%;
- added toolbar button "Highlight" to switch on/off highlighting of math expressions.