# CalcTape Paper Tape Calculator — Calc thought from scratch

> A calculator app that allows instant editing and commenting of calculations. (iPhone/iPad app by schoettler Software GmbH.)

- Source: https://appshunter.io/ios/app/calctape-paper-tape-calculator/id525997288 (this page in markdown: same URL + `.md`)
- Developer: [schoettler Software GmbH](https://appshunter.io/developer/299986561)
- Category: Finance, Productivity
- Price: $2.99
- Rating: 4.20/5 from 118 App Store ratings · 226 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 4 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, Japanese, European Portuguese, Russian, European Spanish, Turkish
- Released: 2012-05-16
- Data updated: 2026-09-02
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/calctape-paper-tape-calculator/id525997288/reviews.md

## What is CalcTape Paper Tape Calculator?

Calculator thought from scratch! Calculate, comment and correct instantly.

What happens if you combine a standard calculator App, a classic desktop calculator and a note App ?

CalcTape brings you the best of these and even more.
It is your companion for all daily calculation needs and easily masters all scenarios you can imagine.
CalcTape is NOT a scientific calculator app, but do we need these in daily use ?

Ever did a long calculation with many figures and asked yourself:
"Did I enter the last figure correctly ?"
"The result looks strange somehow !"
With CalcTape you keep an overview, can check all figures and correct figures instantly inplace with
all subsequent results being adjusted automatically ! 
Missed a figure ? No problem: Just insert it in the right place easily by entering a new line.

You can place the cursor everywhere you like in the calculation: It's like a note where
you can change anything you like in any place with the advantage, that changing numbers
or operators updates your calculation immediately!

CalcTape can be considered an "Excel Lite with a calculator interface".

You can also keep the calculation for your records (documents) and create templates: 
Replacing the figures in your template and getting the correct results is a breeze.
Commenting figures and results gives sense to your calculations, so you can understand
what you did when viewing the calculation a month later.
Customize CalcTape to your needs and place only those buttons on your keypad that you really
need everyday. Create your own functions to e.g. add a specific percent rate with a tap on
a single button.

CalcTape features:
- Save your calculations into files
- Create own functions or text snippets to be entered when pressing a button (long press a button to enter the Button screen)
- Create own keypad layouts (change assignment of all buttons except numbers and backspace / change button sizes)
- Select between different keypad layouts (the "function keypad" contains no numbers and is nearly completely customizable)
   to get more buttons or other functions, 2 keypads are directly accessible in the main screen
- Share your calculations using standard iOS sharing capabilities, e.g. email
- Sync your calculations with iPhone, iPad, Mac and PC using iCloud Drive.
- Calculate TAX, VAT and other percent values easily
- Use CalcTape for budget, accounting and expense tracking in the office and at home, everyday.

CalcTape, more than a calculator.


FAQ:
- Start a new calculation on the same sheet by simply tapping the "=" key twice.
- Do a long tap on a button to assign another existing function or to create a user function for it.
- If you accidentally hit "AC" you can use "Undo" to get your calculation back.

## Key features

- Instant in-place correction of figures
- Automatic adjustment of subsequent results
- Insert figures anywhere in the calculation
- Save calculations as documents
- Create custom functions and text snippets
- Customize keypad layouts
- Sync calculations via iCloud Drive

## Chart rankings

- #26 in Top Paid · Finance (US App Store)

## What do users think of CalcTape Paper Tape Calculator?

Overall sentiment: positive

**Pros**

- 👍 Intuitive and easy-to-use interface
- 📝 Editable tape with visible calculation history
- 💾 Ability to save multiple calculation sheets/documents
- 🏷️ Add text notes alongside numbers for clarity
- ⚙️ Customizable keyboard buttons for frequent calculations
- ☁️ iCloud sync across devices
- 📤 Easy export and sharing capabilities
- 🎯 Perfect for budgeting and financial tracking
- ⏱️ Fast and responsive performance
- 🖥️ Available on multiple platforms (iOS, Mac, Windows)

**Cons**

- 🐛 Frequent crashes and app freezing
- 🐛 Accidental data deletion from unclear AC button placement
- 🐛 Dark mode not functioning properly
- 🐛 Cursor positioning issues when editing
- 🐛 Text entry next to numbers fails inconsistently
- ⚠️ Infrequent app updates and maintenance
- ⚠️ Poor developer responsiveness to support requests
- ⚠️ Data loss and corruption issues
- ⚠️ Split-screen and slide-over functionality broken
- ⚠️ Keyboard layout issues on iPad

**Commonly reported bugs**

- App crashes when switching between apps
- Cursor locked in top-left corner after iOS updates
- Dark theme displays same as light theme
- Text entry next to numbers not working
- Accidental data wipe from AC button location
- Bottom row of keys cut off or unresponsive
- App freezes during percentage calculations
- Saved data becoming out of date or corrupted
- Split-screen shows empty blue box
- Persistent old entries that cannot be deleted
- Cloud sync causing local data loss
- Support function not working

**Most requested features**

- Confirmation dialog before clearing all calculations
- Lock pages to prevent accidental deletion
- Archive and backup/restore functionality
- Dark mode that actually works
- Trash/recycle bin for deleted items
- Color tags for organizing saved calculations
- iOS widget for quick access
- Donation option for users
- Better split-screen support for iPad
- Improved keyboard behavior on iPad

## Recent user reviews (10 of 226)

All indexed reviews: https://appshunter.io/ios/app/calctape-paper-tape-calculator/id525997288/reviews.md

### 3/5 — Was working great now not

*2026-07-26*

Idk what happened it used to work fine even with low signal but now my calculations just disappear randomly. It’s very frustrating. I don’t always have a lot of signal I need this to work offline too. I need to be able to keep working on things anytime I can save to device and they disappear more often. Just gone. So frustrated. I need to be able to rename the calculations not just have them numbered with date and time. Whatever text I put at top should be the name but it’s not. It was on a couple idk how I managed that but not anymore.

### 5/5 — Sem dúvida, a melhor da App Store

*2026-05-04*

Tenho essa calculadora para Windows também e jamais, nem de perto, vi um design de calculadora de fita tão bonito e útil.

### 1/5 — Doesn’t sync between devices

*2026-04-25, version 6.0.6*

Very annoying. It also erases completely your tabulations for no reason. It used to be a great app but not so great now.

### 5/5 — Best Tape Calculator IOS and Mac

*2026-04-23, version 6.0.6*

This is the best tape calculator I have used it for years for Mac and iPhone

### 5/5 — La meilleure calculatrice en plus dispo sur toutes plateformes

*2026-02-07*

J adore cette applis ont peut le retrouver sur pc iOS ou os et même android bravo et merci

### 5/5 — The best app ever!!!

*2025-11-30, version 6.0.6*

I use it every day of my life

### 5/5 — Easy to Use & Reliable

*2025-11-04*

This app is very handy & easy to use.  works flawlessly for me.  I've used this for years.  I use the duplicate & rename function to create template for repeat calculations.   The only thing I would suggest is for developer to provide archive or backup & restore for the all the calculations.

### 5/5 — The best app!!

*2025-10-11, version 6.0.6*

I use it every day of my life

### 4/5 — Can the pages be locked to prevent deletion

*2025-10-04*

I really like this app and have been using it for years. I have several pages to keep on track of payments etc. 

I would really like to see a function where the page is harder to clear as a few times my data has been wiped in error. Whether I haven’t closed the page and put my phone in my pocket. Then the next time it’s all gone. 🥹

### 5/5 — Utilitarian & fast

*2025-09-15, version 6.0.6*

Every once in a while I try other calculators in the App Store but I aways come back to CalcTape. It’s fast and intuitive for my brain

## Frequently asked questions about CalcTape Paper Tape Calculator

### What is CalcTape Paper Tape Calculator?

CalcTape Paper Tape Calculator is an app that merges the functionality of a standard calculator, a classic desktop calculator, and a note-taking application. It allows users to perform calculations, add comments, and instantly correct entries, with all subsequent results updating automatically.

### How does CalcTape allow for corrections and edits?

You can place the cursor anywhere within your calculation and edit figures or operators directly. This is similar to editing a note, but any changes you make will immediately update the entire calculation. You can also easily insert new figures in the correct place by adding a new line.

### Is CalcTape a free app?

Based on the provided information, the application is not free. It is a paid application, meaning users need to purchase it to use its full features.

### What devices is CalcTape compatible with?

The application is designed to sync calculations across multiple Apple devices, including iPhone, iPad, and Mac, using iCloud Drive. This allows for seamless access and editing of your calculations on different platforms.

### What are some common use cases for CalcTape?

CalcTape is useful for various daily calculation needs, such as managing budgets, tracking expenses, performing simple accounting tasks in both office and home environments, and creating templates for recurring calculations. Its ability to comment and edit makes it ideal for keeping detailed financial records.

## Version history (last 5 releases)

### 6.0.6 — 2022-06-17

-numeric keyboard now has a small margin to the bottom to reduce risk of accidentally tapping the home-bar instead of the buttons in the bottom row

### 6.0.5 — 2022-02-03

- Bugfixes

### 6.0.4 — 2019-12-02

fixes an iOS13 related issue which prevented customization of Buttons

### 6.0.3 — 2019-09-25

fixes an issue for iOS 13: cursor jumped to the beginning of the document when trying to reposition the cursor by tapping on the screen. Cursor is now correctly positioned to the location where screen was touched.

### 6.0.2 — 2019-08-22

fixed an issue for iOS 13: Documents were only shown when app was moved to background once

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## Related topics

[calctape paper tape calculator](https://appshunter.io/ios/topics/calctape-paper-tape-calculator) · [calc tape calculator lite](https://appshunter.io/ios/topics/calc-tape-calculator-lite)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*