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Calcbot — The Intelligent Calculator and Unit Converter

By Tapbots

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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.

iCloud Sync.
Sync your history tape, constants, and faves across all of your Macs, iPhones, and iPads.

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 in Version 2.1

What's New:

- Support for Apple Watch

Just in time for your shiny new Apple Watch! Perform basic calculations, conversions, calculate tips, and split bills right from your wrist. The same features are coming to the iPhone today view soon.


- Force press to access operators in Calculator mode and conversions in Converter mode.
- Tap on the result to delete one number at a time.
- Customize which conversion options show up from Calcbot on your iPhone.


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Apple Watch

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Customer Reviews

Extremely buggy on Apple Watch

I got this app because it was recommended as an Apple Watch app, so my review focuses on that. I think 3 stars is generous given that the program is buggy on my watch. There's a tip calculator that doesn't calculate which is very annoying. There's a currency conversion feature that also doesn't work and is poorly thought out. For example, even if the currency conversion did work, you can convert Celsius to Fahrenheit but not the other way around. The same limitation exists with respect to miles/kilometers and the other conversions that, in theory, the app is supposed to do. I think this app needs a lot of work before it's worth using on an Apple Watch.

Finally updated!!!!!

This was one of my most favorite app, and I was wondering if they ever planned on updating it. Glad to see that convertbot and calcbot are now integrated into a single app. The makers of tweetbot makes very well polished and gorgeous looking apps with simple navigation that makes it a joy to use. I still miss the old UI on convertbot but this is nice in a more modern, clean and simplified manner. Not to mention it also works with Apple Watch!!! Can't wait to try that out once I receive my watch.

The Calcbot Pro from 2010 better!!

This calculator was perfect when I had the Calcbot Pro from 2010. Lost it with the upgrade, which I was not aware I would be charged again for the upgrade. I do not need the frills. the new upgrade looks cheap - dollar store cheap. I do not need a red button to let me know it is the "clear" button. No chance of getting the older version back as the company (Sam) tells me. "Like it or loose it." Sorry to see it go. I will no longer upgrade my apps for fear of this kind of treatment. The new up

Calcbot — The Intelligent Calculator and Unit Converter
View In iTunes
This app is designed for both iPhone and iPad
Offers Apple Watch App for iPhone
  • Free
  • Category: Utilities
  • Updated:
  • Version: 2.1
  • Size: 4.6 MB
  • Apple Watch: Yes
  • Language: English
  • Seller:

Compatibility: Requires iOS 8.2 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5, iPhone 6, and iPhone 6 Plus.

Customer Ratings

Current Version:
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Top In-App Purchases

  1. Calcbot Pro$1.99
  2. Theme Pack 2$0.99
  3. Theme Pack 1$0.99