Oh My Cal! at Mac App Store analyse

App power index: 584 (based on ranks around App Stores today)
Developer Tools Utilities Utilities
Developer: Tong Guo
Price: 0 free
Current version: 2.0.3, last update: 6 years ago
First release : 11 Sep 2014
App size: 1.61 Mb
4.7 ( 227 ratings )
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Estimation application downloads and cost

> 12.85k
Monthly downloads
~ $ 5.26k
Estimation App Cost


Whats Oh My Cal! ?
Oh My Cal! is a multifunctional and multi-mode calculator. Its very cool and convenient!

Benefit Highlighting:

• Supports Basic/Scientific/Programmer mode.

• In programmer mode, you can calculate in Decimal, Octal, Hex and Binary and convert them each other.

• Very convenient to use, you can callout calculator in any workspace using the global key combination. And you can calculate the formulas from within the menubar easily without switching among several apps(For details, see the screenshots).

• A black berry flavors UI :-)

Why Oh My Cal! ?
You may want to ask: The Calculator.app in OS X is powerful, why should I use the Oh My Cal! ?

The Calculator.app in OS X is powerful, but its not convenient. For me, I usually use many apps in fullscreen mode( Xcode, Evernote, etc.). Whenever I want to calculate some formulas, I have to switch among several apps or screens. Oh, I really could not stand!!! So I wrote Oh My Cal!. In addition to as powerful as the Calculator.app in OS X, its very convenient to use (Global Callout or Hanging in menu bar).

Oh My Cal! is free software, you are free to use, copy, modify, merge, publish, distribute, sublicense, the source code of Oh My Cal!.

I have already released all code of Oh My Cal! in MIT license. You can check it out from here: https://github.com/TongG/Oh-My-Cal. If you dont want to compile the source code or you want to donate, you can buy this app at Mac App Store.

If you encounter any issue, you can email me: [email protected] or DM me on Twitter: @NSTongG

If you are using GnuPG, you can send me encrypt email, my GnuPG pub key is 0x67B9E95236924648, you can retrieve it from keyserver.
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Available in countries
Country Price
Canada 2.79 CAD
China 12 CNY
France 2.29 EUR
Germany 2.29 EUR
Italy 2.29 EUR
Netherlands 2.29 EUR
Portugal 2.29 EUR
Spain 2.29 EUR
Poland 2.29 EUR
UK 1.99 GBP
India 160 INR
Japan 240 JPY
Poland 8.99 PLN
Russia 149 RUB
Turkey 6.99 TRY
USA 1.99 USD
Korea, Republic Of 2.19 USD
Ukraine 1.99 USD
Available for devices
MacDesktop,