Calculator?
If you like calculators that can't do problems with % or anything like 10-.5 (it crashes) then you'll love this one
Free
With Ads
About
This app offers two independent calculators in a single interface, allowing for seamless transfer of results between them. It supports basic arithmetic, percentages, and parentheses, with a clean design that adapts to light and dark modes. Ideal for managing multiple calculations simultaneously.
✓Two independent calculators
✓Transfer results between calculators
✓Supports parentheses and percentages
✓Displays formulas and results
✓Adapts to light/dark mode
✓High precision calculations
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What's New in Twin Calculator
2.0.0
October 29, 2026
Twin Calculator has been completely refreshed! • Redesigned MAIN (blue) and SUB (green) calculators • Added automatic Light and Dark Mode support • Side-by-side calculators on iPad in both portrait and landscape • Improved calculation precision and result transfers • Enhanced decimal point and operator input • Better support for negative numbers and parentheses • Improved compatibility with the latest iOS versions • Overall stability and usability improvements Thank you for using Twin Calculator!
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FAQ
What is Twin Calculator?
Twin Calculator provides two independent calculators within one app. You can perform separate calculations on each and easily transfer results between them without re-entering numbers, making complex tasks more efficient.
How do I switch between calculators on Twin Calculator?
On iPhone, you can swipe across the display area to switch between the MAIN (blue) and SUB (green) calculators. On iPad, both calculators can be viewed side-by-side.
Can I transfer results between the two calculators in Twin Calculator?
Yes, you can send a result from the MAIN calculator to the SUB calculator, or vice versa. This feature is designed to help you reuse calculation results easily.
What calculation features does Twin Calculator offer?
Twin Calculator supports addition, subtraction, multiplication, division, calculations with parentheses, percentage calculations, and storing constants. It also displays both formulas and results.
Does Twin Calculator have ads?
Yes, Twin Calculator contains advertisements. It is offered for free, with ads supporting its continued development and availability.
Is Twin Calculator suitable for complex calculations?
Yes, Twin Calculator offers improved calculation precision, retaining higher precision for intermediate calculations and displaying results with up to 10 decimal places. This helps maintain accuracy during continuous calculations and transfers.
What devices is Twin Calculator available on?
Twin Calculator is available on iPhone, iPad, and iPod. It is designed to adapt to your device's screen size and orientation.
How often is Twin Calculator updated?
The latest version of Twin Calculator is 2.0.0, last updated on October 29, 2026. While specific update frequency isn't detailed, this indicates ongoing support.
