Calcbot is an intelligent calculator and unit converter for the rest of us. Featuring an easy-to-read history tape, expression view, intuitive conversion, and much more!

History Tape*.
Every calculation you enter gets saved to the history tape. Refer to calculations later or send them right back to your current calculation.

Expression View.
Calcbot's original expression view allows you to see everything you have typed so you'll never forget what you entered or miss a typo.

Apple Watch Extension.
Perform basic calculations, conversions, calculate tips, and split bills right from your Apple Watch.

Convert any of your calculations with over 500 units across 22 different categories including auto-updating currency rates.

Fave a calculation and get instant access to its result via the Favorites Key. No more cryptic memory keys.

Scientific Functions.
Rotate your device into landscape mode to gain access to common scientific functions.

Get instant access to scientific constants like Pi, Atomic Mass, or add your own*.

Round for Currency.
Have all of your results rounded to two decimal places.

Sounds & Animations.
Beautiful custom animations and sound effects provide positive feedback and an enjoyable experience while performing calculations.

* In-App purchase required.

What’s New

Version 2.5.2

- Sped up launch
- Cleaned up complication icons
- Various minor bug fixes

Ratings and Reviews

4.7 out of 5
11K Ratings

11K Ratings

Trace Dial ,

Not just a calculator

The Calcbot 2 is the best. It converts everything. Money in different currencies compared to your country or any country. Then measuring in units or volumes. Metric conversions from metric to any other measurement such as inches. Then there is temperatures from Fahrenheit to Celsius. Any conversion is possible with this fantastic gem.
You can change the face of the calculator/ device depending which one you like.
Oh yeah almost forgot, it’s a calculator. Not just a calculator but a really good one. It has a memory ribbon that lets you see the prior calculations.
Try the free version. And if you like it then buy the full version.
Hope this helped someone.

cbunton213 ,

Save your sanity

I really wanted to love this calculator... I really did. I gave it more than a fair shot and it let me down. The interface is beautiful and functional however, that is where the positivity towards this app stops. Loading times are stupid... why does a calculator have a 15 second loading time... really!? Also, there seems to be no other way to clear a calculation other than holding down the backspace button for an indeterminate amount of time. Ok ok... I can totally understand the whole holding down the backspace button to clear... the problem is that the app gives you no indication that the calculation has actually been cleared until you lift your finger off the button. Do you need to hold the button for 2 seconds? 5 seconds? Who knows. This causes a situation where clearing works consistently only half of the time. I don’t know... this calculator could be so much BETTER but it’s almost like the developers only did half their jobs on this one. Maybe laziness? Maybe someone got fired during development? Who knows... all I know is you should save your money ok this one folks. Many other better calculator apps out there. Personally, Solve is my go-to calculator app. You should definitely check out that app and leave this one in the dust.

BehindTheEight ,

Just keeps getting worse.

It was bad enough when Tapbots decided to toss out all the beautiful designs they had for their apps in favor of the simple line drawn, childishly large numbered designs ( that just plain look horrible ) but now after using the app for years I do an update to Calcbot and now I can no longer use the Tape History feature without PURCHASING a premium for $1.99! Since I ten to trust developers not to screw users by removing function and holding them for ransom I didn’t fully read the update notes prior to doing the update so I don’t know if it was in them or not and I didn’t make a backup so I can’t revert back to the previous version so I have no option but to remove the app. To bad, Calcbot, Convertbot and Pastebot ( the last 2 not even available anymore ) used to be the GOLD STANDARD for app design and where the first apps I would show to friends to highlight how much better apps were on iPhones than other phones. Now I use Tapbots as an example of how bad app design has gotten over time, especially on the iPhone.

App Privacy

The developer, Tapbots, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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