# CalcTape

> Change an earlier number and recalculate an annotated running total

CalcTape records calculations on an editable tape. Numbers can carry comments, and changing an earlier value recalculates the lines below it. Users can insert entries, add subtotals, and name values used repeatedly, keeping the arithmetic and its explanations together.

Saved calculations provide a starting point for another estimate, expense list, or total. Apps are available for Mac, iPhone, iPad, Android, and the browser; the redesigned Windows version is listed as in development. Export and custom-key options vary by edition. A user can reopen the tape, change a quantity, and inspect how that change affects the later results.

## Listing details

- Canonical BetaNeon page: https://betaneon.com/products/calctape
- Official website: https://www.calctape.com/en/
- Category: Utilities / Calculators & unit conversion
- Status: Launched
- Topics: Calculators, Expenses, Math, Note taking, iPad
- Listing updated: 2026-10-30T16:50:11.324Z
- Information source: https://www.calctape.com/en/

This is a product introduction, not an endorsement. Confirm current availability, features, and prices on the official website. Community upvotes on BetaNeon are not star ratings.