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 and optionally sent to your clipboard for quick pasting. Refer to calculations later or send them right back to the calculator.

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.

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.
Calcbot supports common scientific functions in case you ever need them.

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 multiple Macs and all of your iOS devices.

Sounds & Animations.
Sound effects & animations to provide positive feedback when performing calculations.

What’s New

Version 1.0.7

- Fixed a couple of High Sierra display issues

Ratings and Reviews

2.5 out of 5
2 Ratings

2 Ratings

Eric Portelance ,

A good calculator app, infrequently updated, bugs go unfixed for years

I generally love Tapbots and their apps, but the lack of updates to this one has been extremely frustrating. Since almost 1.0 I have been dealing with a bug where keyboard entry is slow and often results in characters being ignored. This seems like a pretty important feature for a calculator that has never been addressed even though it has been reported as a bug. With High Sierra now, there are a few graphical glitches that are annoying but not deal-breakers. Still, it seems to indicate the lack of interest or care among the developers to even fix basic bugs so I can’t recommend buying this right now.


Typical Tapbots App

A great take on the calculator that stays true to the Tapbots way of making apps. The implementation of unit conversions and the various functions available with the calculator history tape are wonderful. They add that extra layer of functionality that makes the purchase worthwhile. Having said that, Tapbots is guilty of neglecting great apps and are generally very slow to update. With the exception of Tweetbot, Tapbots has failed to deliver to their paying customers time and time again. There will be a new version of Calcbot for iOS and in all likelihood people will have to pay again for that. It will have iCloud sync which will be great. I hope to see widget integration in the future, as well as a new versions of Pastebot for all platforms. Considering the fact that Tapbots has 4 apps that were not even updated to support iOS 7 or even the 4” iPhone 5, it is buyer beware. There is an endearing quality and uniqueness to all their apps. Whether it is user facing features that are well thought out, quirky sounds, or icons loaded with personality, Tapbots knows how to get people to buy in. I really hope they don’t let us down this time around.

Update: The reason I bought this app was to sync and favourite transactions between my Mac and my iPhone. For months this has been broken. It has been reported to them via social media and email by numerous people, and “we’re working on it” is all we hear. As brilliant as Tapbots are, they are arrogant, rude, and lazy as developers. They made a killing on Tweetbot (rightfully so), and now they could care less about their customers. They are just cashing in any way they can. This app is junk and doesn’t work as advertised. Very sad to see this attitude from a company I once loved. Even Tweetbot is starting to lag as Twitterrific for iOS has blown them out of the water. The long awaited Tweetbot for Mac update was underwhelming, and the iPad version has been vapourware for 2 years. Stay away and save your money.

marsofearth ,

It’s OK

It is an OK calculator. A bit buggy sometimes but does the job.

The unit conversion is clunky.

Better products out there, but you will not find a nicer website design for a calculator. The website is a must see for designers.


3.4 MB

OS X 10.10 or later, 64-bit processor



Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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