Live Reviews:
⭐️2 / 5
Rating
🙌1
Ratings
📼1 sc
Content
📦w/o updates
Updates frequency
🗣❌ unsupported
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All Versions of Janus Calculator

2.2

December 12, 2021

Updated to IOS15

2.1

November 10, 2018

Bug fix for display in certain orientations

2.0

July 20, 2017

Update to iOS 10.3, including 64-bit to eliminate "this will slow down your iPhone" messages. Support for display in landscape. Black-Scholes was working on Reverse Polish calculator but not Standard calculator. Now it works on both. Fixed stack operation in RPN mode. Other minor bug fixes. "MEM" function to enable display of calculator's memory (to remind you what you saved in register 6, for example.) Number display now includes commas. Three assignable buttons for running programs. Two new stats buttons - skewness of a distribution, and slope/intercept of a regression line.
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1.0

May 26, 2010

Price History of Janus Calculator

Description of Janus Calculator

Two-sided calculator. Side A uses Standard Notation, Side B uses Reverse Polish Notation. Both calculators are programmable, include various finance and scientific functions, and the values of 45 physical constants. Also includes a Black-Scholes option calculator, including calculation of implied values for each of the inputs.

Janus Calculator: FAQ

Is Janus Calculator iPad-friendly?

Yes, Janus Calculator supports iPad devices.
Geoffrey Domm is the creator of the Janus Calculator app.
The minimum iOS version for the Janus Calculator app is 15.0.
The Janus Calculator app has a user rating of 2.0.
The App Genre Of Janus Calculator Is Productivity.
The latest Janus Calculator version released is 2.2.
The latest Janus Calculator update came out on July 3, 2024.
Janus Calculator launched on February 5, 2023.
The Janus Calculator app is suitable for children aged Geoffrey Domm.
The Janus Calculator app is now available in English.
Sorry, Janus Calculator is not available on Apple Arcade.
Sorry, in-app purchases are not accessible within Janus Calculator.
Unfortunately, Janus Calculator is not optimized for use with Apple Vision Pro.

Screenshot of Janus Calculator

iphone
ipad

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Reviews of Janus Calculator

  • Correction to previous review

    The Janus Calculator appears to be a simulation of the HP-12C augmented with some HP-11C and the Black Scholes functions.

    Apparently, the current edition is best version; the earlier version is not worth downloading. However, the current version only works on iOS 10 or 11. Therefore, this will not work on earlier iOS devices (like iPad 2 or iPhone 4S). That is why I deduct two stars.

    Landscape mode makes the Janus Calculator resemble the HP-12C. Minor glitch, both iPhone SE and iPad Pro: "Flip" and "i" are not available in landscape mode. ("Flip" is how to switch between RPN and standard mode; "i" is access to help and other features). No stars deducted for this.
  • Amazing

    So cool... My best friends daddy made this..... Hehe
  • Non math geek

    Easy to understand and operate