- CALC 1 uses multiple calculators so each calculator has the most important keys for that task on the top row.
- "Long Press" any key to display a hint.
- Tap the help button on any calculator for documentation and examples.

- Video Overview
- Text Overview
- Calculation Methods
- Calculations Using the Chain Calculation Mode
- Calculations Using the Algebraic Calculation Mode
- Calculations Using the RPN Calculation Mode
- Storing and Recalling Numbers
- Data Entry
- Notes for iPad Users
- External Keyboard Support