RuleCoach vs iSlideRule Usage & Stats

Developed to train myself, this is a valuable App for those who want to become better with their slide rules—or even those who just want some practice with mental arithmetic estimation—RuleCoach is both a coach and a proctor that aims to improve your speed and accuracy with your slide rule. Exams cover a wide range of scales found across many rules, and includes helpful instructions that will guide you in calculating solutions! Includes a unique calculation error metric calibrated to the linear misalignment of the physical components in addition to traditional calculation error percentages.

Apple App Store
Free
Education

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iSlideRule

iSlideRule is a fully customizable sliderule app supporting multiplication, sines, tangents, cosines, cotangents, roots, squares, logarithms, and hyperbolics. There are nearly 100 different scales supported by iSlideRule, including scales for dimensional analysis. From the set of scales provided, 12 can be selected for the top and bottom rules, as well as the slide, in groups of 4 scales each. Double-tapping each rule selects the next group of 4 within the application. A two-finger pan left or right on the center slide provides viewing of the index ends, while one finger swiping up or down on the cursor changes color schemes dynamically. The application supports rotation of the handheld, allowing the sliderule to take full advantage of the display, and has 11 selectable color schemes to customize your sliderule to your favorite color.