Calculator X Free - Advanced Scientific Calculator with Formula Display & Notable Tape

Calculator X Free - Advanced Scientific Calculator with Formula Display & Notable Tape

by 雪辉 吴

6 ratings
51 reviews

Archived App (Last seen on 5 Jul 2025)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • April 26, 2011
  • April 3, 2015

Features

Calculator X Free - Advanced Scientific Calculator with Formula Display & Notable Tape screenshot #1 for iPhone
Calculator X Free - Advanced Scientific Calculator with Formula Display & Notable Tape screenshot #2 for iPhone
Calculator X Free - Advanced Scientific Calculator with Formula Display & Notable Tape screenshot #3 for iPhone
Calculator X Free - Advanced Scientific Calculator with Formula Display & Notable Tape screenshot #4 for iPhone
Calculator X Free - Advanced Scientific Calculator with Formula Display & Notable Tape screenshot #5 for iPhone
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About

This app offers an advanced scientific calculator with a formula display and a detailed tape. It allows users to customize backgrounds, email calculation tapes, and add comments to entries. The calculator supports up to 16 digits and scientific notation.

Formula display with results
Customizable backgrounds
Emailable calculation tape
Commentable tape entries
Memory recall
16-digit accuracy with E+
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What's New in Calculator X Free

3.4

April 3, 2015

This app has been updated by Apple to display the Apple Watch app icon. - iOS 8.2 tested - Minor bug fixes

More
2

In-App Purchases

$2.99

Calculator X Full Version & Remove Ads

Calculator X Full Version & Remove Ads

User reviews

CalculatorX

Cool one star of greatness and cool add on image background shame you add on a Xmas tree and is turned upside down... I had to uninstall it due to no personal add on image as it is not in facing portrait mode... But is gorgeous in reliability, it helped me out.

Please update to more colors, I got criticized on the brown...

Thanks
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Doesn’t work

Paid for advertising to be removed and it’s not. It stinks.
Don’t pay for advertising removal it doesn’t work.

You pay for ads

I bought the pro version with no ads and I still have ads and no background and nobody to contact to tell them what I think of their app.

C R A P

Don't waste your money, it's completely rubbish. There's no support, just a scam.

I already own it and had for a long time

But in trying to contact them about bugs they make it so I can't ; I already purchased ad free full and it said I did but the adverts retain and even more comes up when non should , and I already own it .. Why does Apple allow this activity , like there endorsing it ..

Now the change background changing doesn't work with no way to contact bug reports to have it fixed ; Apple likely still sells it and refuses to hammer down on this issue of selling apps with no support to bug fixes , it's not like they don't know how to contact the maker as well as still selling the apps ..

And I own the full pro version not the free ..

..
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Developer apps

FAQ

What does this calculator app do?

This app functions as an advanced scientific calculator. It displays your complete calculation formula alongside the result, and provides a detailed paper tape list for all your calculations. You can also add comments to each entry on the tape and email the entire tape.

What are the key features of this calculator?

Key features include a simultaneous formula and result display, a full formatted calculator paper tape list, the ability to email your noted formula paper tape, and the option to enter comments for each value. It also offers memory recall for the last result and supports accurate 16-digit calculations with E+ notation.

Is this calculator app free to use?

The application is available for free. However, it does offer in-app purchases, which may unlock additional features or customization options beyond the core functionality.

What devices is this calculator app compatible with?

The app is designed for mobile devices. It offers a regular calculator interface in portrait mode and an advanced scientific calculator interface when the device is in landscape mode, suggesting compatibility with smartphones and tablets that support orientation changes.

Who would benefit from using this calculator app?

This app is ideal for users who require more than a basic calculator, such as students studying science or mathematics, engineers, scientists, or anyone who needs to perform complex calculations and wants a clear record of their work. The formula display and noted tape are particularly useful for tracking and reviewing calculations.