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CalcTape Paper Tape Calculator

by schoettler Software GmbH

  • Finance
  • Paid
  • Small & simple · 100
View on the App Store
Rating
4.2
121 ratings · US storefront
Top 73%among 80 Finance apps
Last update
Oct 23, 2026
Version 6.2
Size
3 MB
Category
Finance
Tracked since
Oct 9, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

Every calculation. In context.

CalcTape combines a calculator, an editable calculation tape and space for notes. Plan a trip, check shopping costs, or track expenses while keeping your numbers and notes together.

KEEP EVERY STEP IN VIEW
Enter several items, create subtotals and add comments beside the numbers. Use arithmetic, percentages, powers and other functions while keeping longer calculations easy to follow.

CHANGE A FIGURE, UPDATE THE RESULTS
Edit a number or an operator, insert a line or remove an item. CalcTape recalculates the results below automatically. Undo and Redo let you reverse and restore changes.

SAVE YOUR WORK
Keep calculations as documents, reopen them later and reuse them as templates. The document list shows the storage location, date and line count. Choose whether a document opens at the beginning, at the last position or at the end.

MAKE IT YOUR OWN
Customize keyboard layouts and create user keys for frequently used functions or text. Choose from five themes, including Dark Night with a dark calculation tape, keyboard and dialogs.

SHARE AND CONTINUE
Share calculations as text, HTML or CalcTape files through the iOS share sheet, or print them. Use iCloud Drive to access your documents on other devices.

FOR IPHONE AND IPAD
The calculation tape and keyboard adapt to the app window. On iPad, work alongside another app.

CalcTape is now also available in Ukrainian and Malay.

Manual: https://help.calctape.com/ios
Support: [email protected]

What’s new

Release notes for the latest version, as written by the developer.

v6.2

New in CalcTape 6.2:

  • Optional ruled lines make calculations easier to read. Enable them in Settings independently of the Item Counter.
  • Long calculations and large document lists respond faster.
  • Improved iCloud reliability and new status indicators for your documents.
  • More reliable startup, plus improvements to date displays and keyboard layouts.
  • Now also available in Ukrainian and Malay.
  • The app icon supports dark and tinted Home Screens on iOS 18 and later.

Rank history

Daily position in the Indonesia charts. #1 is at the top.

Best rank
#2
Current rank
#2
Days charting
7 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

100/100

Small & simple

  • Developer size100% · 25

    Developer: 1 app on the charts

  • Audience size100% · 20

    Ratings: 116

  • App size100% · 10

    Size: 3 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof100% · 30

    Best rank #1, 105 countries

An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2

How the score works

Version history

  • 6.2LatestReleased Oct 23, 2026
  • 6.1.0Released Oct 16, 2026
  • 6.0.6Released Jun 17, 2022