CalcTape Calculator with Tape

schoettler Software GmbH

In-app purchases

About this app

CalcTape is the calculator that works the way you think: type your whole calculation, see every figure, and change anything at any time.

What if a standard calculator, a classic desktop adding machine, and a notes app were rolled into one? That's CalcTape - your companion for everyday math, from a quick sum to a long, multi-step calculation. (CalcTape is not a scientific calculator - and for daily use, who really needs one?)

Ever run a long calculation and wondered:
"Did I enter that last number correctly?"
"Why does the result look off?"

With CalcTape you keep the full overview. Every number and operator stays visible, so you can check your work - and correct any figure right in place, with all following results updating automatically. Forgot a value? Just add a new line where it belongs.

Place the cursor anywhere in the calculation and edit it freely, like a note. The moment you change a number or an operator, everything recalculates. Think of it as a spreadsheet with a calculator interface.

WHY YOU'LL LIKE IT
• Edit any figure in place - results update automatically
• See your entire calculation, not just the last result
• Comment your numbers and results so it still makes sense weeks later
• Build reusable templates: swap the figures, get the answer in a breeze
• Percentages, thousands separators (including Indian digit grouping)
• Day, Night and System themes
• Reliable Undo/Redo and smooth editing, even in long calculations

MAKE IT YOURS
Keep only the buttons you actually use on your keypad, and create your own functions - for example, add a specific percentage with a single tap.

FREE VS PRO
CalcTape comes as a free version with the full tape calculator on your worksheet. The Pro upgrade adds:
• Save calculations as documents and manage multiple files
• Import, export, backup and restore
• Print your calculations
• Share via email and other apps
• Unlimited variables
• Fully customizable keypads — reassign any button, change button sizes, create your own
• Multiple keypad layouts, including a numbers-free function keypad (three keypads are reachable right from the main screen)

Found a problem or have an idea? We'd love to hear from you. Telling us your Android version and phone model helps us fix things faster.

Ratings and reviews

Great app, but the new update pushed through not only removed features (like two numeric pads), but introduced bugs. Most annoying is the lag, and fact it does not enter every keystroke. I feel haptic tell me a key was hit, but the result in the app is filled with tons of missed characters. I have to type agonizingly slow, and still re-enter and edit many keystrokes. Also the toggle to turn on haptic in the nurmeric pad does nothing on my end, still no haptic on numbers. I prefer prior layout.

I can't give zero stars because it can't go any lower than 1 star. The latest update ruined the appearance along with the new "features" which we don't need and I get annoyed every time I see the "how to's whenever you open the app or doing the calculations. I've uninstalled it because it's no longer the CalcTape I i know since I had it for many years.

The Best-but for a couple things: 1. History would be a wonderful addition! 2. For mths, when I open other apps, that need to "play" files, yours pops up as an option, instead of an appropriate one, often as the only option. Digging into this glitch, I found settings to change, but SEVERAL files (dozens?) that only opened to a saved file on this app. 3. One premission, not needed but no choice to turn off & I want to. Otherwise, your premissions are above-par. As is functionality.