ClearTape: Calculator History

Every number. Every step. Clear.

ClearTape is a calm, precise calculator built for everyday totals and calculations you need to revisit later. Results update while you type, percentage math explains what changed, and editable calculation tapes preserve the full story behind a total.

CALCULATE WITH CONFIDENCE

- Live results for basic and advanced expressions
- Correct operator precedence, parentheses and negative values
- Context-aware percentages for increases, discounts and differences
- Scientific functions including sin, cos, tan, square root, log and ln
- Degree and radian modes
- Decimal math designed to avoid common floating-point surprises

KEEP A CLEAR RECORD

- Searchable calculation history stored on your device
- Pin important results and add notes
- Reuse an earlier expression with one tap
- Create editable tapes for budgets, shopping, estimates and projects
- Change an earlier tape line and every later total recalculates

USEFUL EVERYDAY TOOLS

- Discount and tax calculator
- Tip and bill split calculator
- Unit converter for length, mass, area, volume, temperature, speed and data
- Date difference and add-days calculator

PRIVATE BY DESIGN

- No account or sign-in
- Calculations, notes, tapes and history stay on your device
- No custom analytics
- ClearTape remains usable without a network connection

The free version may show one consent-aware banner on secondary screens after the first three sessions. Ads never interrupt keypad input. A single ClearTape Pro purchase removes ads permanently and unlocks unlimited named tapes plus CSV and PDF export. No subscription.

Privacy policy: https://blacksunsetstudio.lovable.app/app/cleartape/privacy
Support: info@blacksunset.ee