Tritab Calc: Multi Calculator

Three calculators on one screen, each with its own history. Copy between tabs, one-tap tax, plus pastel or high-contrast themes—readable even in bright sunlight.

TriTab Calc puts three independent calculators on one beautiful screen.

Stop juggling a single calculator for multiple tasks. TriTab Calc gives you three separate calculators — A, B, and C — each with its own running history and memory. Switch between them instantly with a tap, and copy a result from one tab straight into another.

FEATURES

• Three independent calculators (A / B / C) — each keeps its own history

• Tap a result to copy, tap again to paste — move numbers between tabs effortlessly

• One-tap tax button with an adjustable rate (sales tax, VAT, consumption tax)

• Full expression input: parentheses ( ), square root √, square x², percent %, and sign ±

• Scrollable history — tap any past result to reuse it

• Clean, calm design that's easy on the eyes

• Two color themes — soft Pastel, or High contrast that stays readable outdoors and in bright sunlight
• Large-text option with bigger, clearer controls for easier reading

• Available in English, 日本語, and 中文

• Works completely offline — no account, no ads, no tracking

Perfect for shopping, budgeting, splitting bills, quick estimates, schoolwork, and anyone who runs more than one calculation at a time.

Your data stays on your device. TriTab Calc collects nothing.

— Made by one indie developer. If TriTab has been useful, a short review or note of what you think would mean a lot. Feature ideas are very welcome too — I read every message myself.