RPN Calculator DeepStack

Lightweight Optimized HP Style Reverse Polish Notation(RPN) Calculator.
Features:
- Optimized Key Layout
- Big Enter and Zero Key
- No Triangle Functions or 2nd Function key.
- Conditional DUP/DROP key(Enter/Backspace)
- Conditional E/E- key(Period)
- Right hand optimized design
- Paste from clipboard
- Copy to clipboard(Tap stack)
Additional features from lite version.
- Inverting layout for left hand using(Optional)
- Stack Label(Optional)
- Auto Sum(Optional)
- Shake to Reset(Optional)
- Auto Copy to Clipboard(Optional)
Infinity Stack
- Deep stack without limitation except memory capacity.
- Stateless Design, Reset all condition when launching.
Responsive Touch
- Simple UI response is quicker than rich UI or HP emulators.
- Click sound (2 pattern,numbers or others)