HP 15c Calculator
HP 15c Calculator brings the classic scientific calculator's RPN workflow to iPhone and iPad.
Choose it if you already prefer HP-style keystrokes and stack-based entry.
Matrix operations, complex functions, integration and programming suit more than basic arithmetic.
Keep in mind: RPN takes practice, and a phone app should not be assumed permitted where exam rules require a physical calculator.
Inside the app
Official product images
What you can do
- RPN scientific calculations
- Matrix and complex-number functions
- Programmable sequences up to 448 lines
Good for
- Students and professionals who want the HP 15c workflow
Consider alternatives for
- Anyone wanting an ordinary algebraic-entry keypad
Limitations & considerations
- Captured minimum: iOS 15.6.
- RPN takes practice, and a phone app should not be assumed permitted where exam rules require a physical calculator.
Privacy & permissions
The supplied description does not establish account or cloud behavior; consult the store disclosure before optional permissions.
Sources & review notes Updated Nov 11, 2026
Reviewed by iApp4Me Editorial Team. Recommendations use the linked documentation and attributed accounts; device observations are identified separately.
- US App Store developer description
Complete description, download price and compatibility metadata captured 2026-11-02.
- HP calculator licensee app directory
The official calculator licensee links this exact iOS App ID as the HP 15c scientific calculator app.
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