DM50
Cheap and powerful calculator.
$0.99
DM50 is a faithful tribute to the golden era of scientific calculators, bringing the legendary HP-style experience to your iPhone with modern enhancements.
Whether you're an engineer, student, scientist, or calculator enthusiast, DM50 delivers the power and precision you need, with the tactile familiarity of classic RPN entry and a crisp, authentic 132×64 monochrome LCD display.
REVERSE POLISH NOTATION (RPN)
A true HP-style RPN engine with a dynamic multi-level stack, stack lift, SWAP, ROLL and DROP. Once you learn the flow, complex calculations become faster and more intuitive.
ALGEBRAIC MODE (CAS)
Type expressions the way you write them: full operator precedence, parentheses and implicit multiplication (2π, 3(4+5)). Includes numerical derivatives ∂(f,a), definite integrals ∫(f,a,b), and nine memory variables (x, y, z, A–F) for chained calculations.
EQUATIONS AND INEQUALITIES
Solve linear and quadratic equations — complex roots included — and linear inequalities.
MATRIX ALGEBRA
Matrices up to 5×5 in a dedicated editor: addition, subtraction, multiplication, transpose, trace, determinant and inverse.
MORE MATH MODES
• 3D vector calculations
• Complex number arithmetic
• Base conversion: decimal, binary, octal and hexadecimal
• Formula library with pixel-art diagrams, inspired by the classics
• Constants library with common physical and mathematical constants
SCIENTIFIC FUNCTIONS
• Trigonometry with RAD / DEG / GRAD angle modes
• Logarithms, exponentials, powers and roots
• Hyperbolic functions, factorials and more
AUTHENTIC EXPERIENCE
• Pixel-perfect monochrome LCD rendering (132×64)
• Classic keyboard layout with BLUE / ORANGE
• Real-time status bar: clock, angle mode, modifiers and battery
• Retro sound effects
BUILT FOR POWER USERS
DM50 is designed for depth. The layered modifier system exposes dozens of functions without cluttering the interface — just like the classic calculators it draws in
A LITTLE FUN TOO
A built-in dice game to take a break between calculations. Track your high score.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
This update improves the experience on iPad:
• The full keyboard is now visible on every iPad model. Previously, the bottom row of keys could be cut off.
• The calculator scales to fit the screen in both portrait and landscape, and stays centered.
Thanks to everyone who reported this issue!
The developer, Javier Bascones, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Javier Bascones
- Size
- 1.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 10.13 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Javier Báscones
