Slide Rule

Slide Rule

by Masayuki Akamatsu

1 ratings
24 reviews
$0.99

Details

  • Released
  • Updated
  • February 11, 2019
  • August 20, 2026

Features

Slide Rule screenshot #1 for iPhone
Slide Rule screenshot #2 for iPhone
Slide Rule screenshot #3 for iPhone
iphone
ipad
๐Ÿ–ผ๏ธGet Icon
Iconsโ†˜๏ธŽ

About

Simulates a mechanical analog computer for scientific and engineering calculations. Perform multiplication, division, roots, and trigonometric functions with a digital slide rule.

โœ“Multiplication and division
โœ“Square and cube roots
โœ“Trigonometry functions
โœ“Logarithm calculations
โœ“Digital slide rule simulation
โœ“Mechanical analog computer
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+1

What's New in Slide Rule

2.5.2

August 20, 2026

Now takes advantage of ProMotion displays. Dragging the scales and cursor is rendered at up to 120fps for a smoother, more responsive feel.

User reviews

Freezes

Freezes up regarding easy exit

ใ‚ใ‚ŠใŒใจใ†

6sใงๅ‹•ใใ‚ˆใ†ใซใชใ‚Šใพใ—ใŸใ€‚ใพใŸใ€ไปฅๅ‰ใ‚ˆใ‚Š่‰ฏใใชใ„ใพใ—ใŸใ€‚

่ฆ‹ไบ‹!!

ใ“ใ‚Œใฏ่ฆ‹ไบ‹ใงใ™ใ€‚

ใ“ใ‚Œใฏใ„ใ„

iPhoneใง่จˆ็ฎ—ๅฐบใ‚’ไฝฟใฃใฆ่จˆ็ฎ—ใŒใงใใ‚‹ใชใ‚“ใฆๆœ€้ซ˜๏ผ
logใ€sinใ€tanใ‚‚่ฟฝๅŠ ้ก˜ใ„ใพใ™ใ€‚

what?!? no log or trig?!?

no log, no star!!

(j/k)

Developer apps

FAQ

What calculations can Slide Rule perform?

Slide Rule can perform multiplication, division, square roots, cube roots, trigonometry, and logarithm calculations. The width of the scale is 1,000 pixels in this version.

Is Slide Rule available for free?

No, Slide Rule is a paid application. It is priced at $0.99 and is available for iPhone, iPad, and iPod.

What devices support Slide Rule?

Slide Rule is compatible with iPhone, iPad, and iPod devices. It requires iOS 4.0 or later.

How often is Slide Rule updated?

The latest version of Slide Rule is 2.5, last updated on September 17, 2025. The app was initially released on February 11, 2019.

What is the age rating for Slide Rule?

Slide Rule has an age rating of 4+, making it suitable for a wide range of users including younger learners.

Does Slide Rule have ads?

The provided data does not specify if Slide Rule contains advertisements. However, it is a paid application, which often implies an ad-free experience.

What is the user sentiment for Slide Rule?

Based on the available data, Slide Rule has a rating of 1.0 stars from 1 rating, indicating a very low user satisfaction score.

Can Slide Rule be used offline?

As a simulator of a mechanical analog computer, Slide Rule is designed to function without an internet connection, allowing for offline calculations.