What's New

Bug fixes and performance improvements, OS updates.

App Description

Circuits 1 is a fundamental course in electrical engineering. This app is designed to complement that and covers some of the basics commonly taught in these classes. It includes:
+ the fundamental theory of Ohm's law
+ some applications of resistors such as voltage divider and series/parallel resistor circuits
+ engineering pad for more problem solving/discussion
+ resistor color code calculator
+ and more

In addition to presenting theory, worksheets and examples are also included for further understanding of this topic.

No in-app purchase.
No ads.
Accessible offline.

iPhone Screenshots

(click to enlarge)

circuits 1 screenshot 1 circuits 1 screenshot 2 circuits 1 screenshot 3 circuits 1 screenshot 4 circuits 1 screenshot 5

iPad Screenshots

(click to enlarge)

circuits 1 screenshot 6 circuits 1 screenshot 7 circuits 1 screenshot 8 circuits 1 screenshot 9 circuits 1 screenshot 10

App Changes

  • February 08, 2013 Initial release
  • May 04, 2013 Price increase: $1.99 -> $2.99
  • June 07, 2014 New version 1.1
  • August 11, 2014 Price decrease: $2.99 -> $1.99
  • March 17, 2016 New version 1.2
  • June 13, 2019 New version 1.3
  • June 13, 2019 Price increase: $1.99 -> $2.99
  • June 14, 2019 Price increase: $1.99 -> $2.99
  • June 14, 2019 Price increase: $1.99 -> $2.99
  • June 15, 2019 Price increase: $1.99 -> $2.99
  • June 15, 2019 Price increase: $1.99 -> $2.99
  • June 15, 2019 Price increase: $1.99 -> $2.99
  • June 16, 2019 Price increase: $1.99 -> $2.99
  • September 24, 2019 Price decrease: $2.99 -> $1.99
  • January 21, 2020 New version 1.4