Retro 3D Calculator

Relive the feel of a classic desktop calculator.
Retro 3D Calculator is a powerful 3D calculator app that combines the tactile experience of vintage desktop calculators with the clarity of modern digital calculators. It features realistic 3D button animations, authentic sound feedback, and accurate calculation logic designed for professional use.
Unlike simple visual skins, Retro 3D Calculator simulates real calculator behavior — including memory-driven workflows, constant operations, markup calculations, and step-by-step review using Replay and CHECK modes. A modern two-line display shows the full calculation context above the result, making it easy to follow every operation.
Key features:
* 3D calculator skins with realistic press animations
* Works seamlessly in both portrait and landscape
* Two-line display with live calculation context above the result
* Sound-enabled tactile feedback (optional)
* Smart memory functions (M+, M−, MRC) with auto-calculation
* Constant operation mode (for example: 10 + 2 = = =)
* Context-aware percentage calculations
* Replay history and CHECK review modes
* Grand Total (GT) and Markup (MU) functions
* Square root, sign change, and correction/backspace
* Optional Replay Auto mode for learning and demos
* Custom calculator skins, including optional premium designs
Perfect for:
* Accountants and professionals using memory and percentage flows
* Students learning calculation steps clearly and accurately
* Anyone who wants a realistic calculator app with physical key feel
No ads. No tracking. Fully offline.
A modern calculator experience, built the vintage way.
Privacy policy: https://shuvangi96.github.io/documents/retro3dcalculator_privacy_policy.html
Support: https://shuvangi96.github.io/documents/retro3dcalculator_support.html