Redo Calculator
Calculator with Undo & Redo
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Free
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About
Redo Calculator lets you calculate confidently without worrying about mistakes.
With full Undo and Redo support, you can easily correct inputs, and the screen-on feature ensures the display never turns off while calculating.
Features
- Undo & Redo for easy correction
- Prevents screen from turning off during use
- Clean, minimal design
- Keeps your recent calculation history
Simple, reliable, and focused — Redo Calculator helps you calculate without interruption.
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What's New in Redo Calculator
1.0.4
October 16, 2026
- Resize the history sheet by dragging its handle or title - Fixed digits being appended to exponent notation after % - Fixed ± and % right after an operator producing a wrong result
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