ArithCalc
Edit any line. See every figure. Totals update instantly
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ArithCalc - Edit any line. See every figure. Totals update instantly

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Most tape calculator apps bloat you with features you don't need — or get basic math wrong. ArithCalc does one thing well: fast, reliable running-total calculations on a clean tape you can review, edit, and reuse. Editable tape — fix any number, totals recalculate Labels per line ("Rent 650"), reads like notes Percentages: 650 + 10%, 500 - 30% Multiple documents, Undo/Redo, memory keys Fully offline — no account, no ads, no tracking Free on Google Play. Feedback welcome!

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Hunter
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Hi PH 👋 I'm the maker. I built ArithCalc because every tape calculator I tried either buried me in features or messed up basic order of operations. This one keeps the whole calculation visible and editable — change any line and the totals update instantly. It's free, offline, no ads. I'd love feedback: what's the one feature that would make it a daily tool for you?