Best Slope Calc Apps

247+ iOS apps curated and reviewed

3.9 avg rating

12 free apps

Updated October 2026

From beginner-friendly picks to power-user tools, our slope calc list covers 247+ iPhone apps updated through October 2026. Compare ratings, prices, and screenshots in one place.

Compare top Slope Calc Apps (October 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Underground Safety	Free	4.1★ (35)	No	No	May 2026
2	Slope Calculator - Calc	Free	4.3★ (104)	No	Yes	Oct 2026
3	Slope Calc - Step by step	Free	—	No	No	May 2026
4	Slope Calculation Tool	Free	4.3★ (84)	No	No	Sep 2026
5	Slope Calculator & Arc Finder	$3.99	2.3★ (3)	No	No	May 2026
6	SlopeCalc: Grade & Ramp	$3.99	—	No	No	Oct 2026
7	Slope Finder	Free	—	Yes	No	May 2026
8	Mila's Slope Calculator PRO	Free	—	Yes	Yes	Oct 2026

Top Picks for Slope Calc

#1

Underground Safety by DevDigital LLC

Slope Calculator

Editor's Choice

📊 Productivity

4.1(35 ratings)

Free

Underground Safety screenshot 1

Underground Safety screenshot 2

Underground Safety screenshot 3

Underground Safety screenshot 4

Underground Safety screenshot 5

This tool helps construction professionals compare excavation methods. Input soil type and excavation dimensions to get calculated results and a visual guide. Save and share findings as PDFs.

#2

Slope Calculator - Calc by Phan Nhat Đang

Ratio, Angle, Length, Percent

Strong Contender

4.3(104 ratings)

FreeIn-App Purchases

Slope Calculator - Calc screenshot 1

Slope Calculator - Calc screenshot 2

Slope Calculator - Calc screenshot 3

Calculate slope in angle, percentage, or ratio by inputting two sides of a right triangle. This intuitive and easy-to-use application provides the remaining necessary values.

#3

Slope Calc - Step by step by Abdul Rehman

Slope Calculator

Worth Considering

0.0(0 ratings)

Free

Slope Calc - Step by step screenshot 1

Slope Calc - Step by step screenshot 2

Slope Calc - Step by step screenshot 3

Slope Calc - Step by step screenshot 4

More Slope Calc apps to explore

Slope Calculation Tool

Slope Calculation Tool

Slope Calculation Tool

Incline, Percentage & Ratio

Calculate all aspects of a ramp's dimensions, including slope, run, length, and rise. It can also measure the slope of existing surfaces using your device's sensors. Supports various input combinations for flexible calculations.

Calculate slope, run, length, and riseSupports multiple input combinationsMeasure existing surface slopes

Slope Calculator & Arc Finder

Slope Calculator & Arc Finder

Slope Calculator & Arc Finder

Calculate Angle & Distance

Instantly calculate slopes, arcs, and curves with precision. This app simplifies complex geometry for students, engineers, architects, and fabricators, providing quick and accurate results for various design and construction needs.

Slope calculation using two pointsArc length, radius, and angle calculationChord length and sagitta determination

SlopeCalc: Grade & Ramp

SlopeCalc: Grade & Ramp

SlopeCalc: Grade & Ramp

Drainage, ADA & pitch

Calculate Slopes Accurately

Mila's Slope Calculator PRO

Mila's Slope Calculator PRO

Mila's Slope Calculator PRO

Grade, Angle & Gradient Tool

by VINCENT WEI HON ZHENG

Slope Calculator+

Slope Calculator+

Slope Calculator+

by Branden S Lacour

Drainage Slope Plumb

Drainage Slope Plumb

Drainage Slope Plumb

Pitch & Grade Calc

Pipe Slope Calculator

Pipe Slope Calculator

Pipe Slope Calculator

Pipe Fall & Drainage Slope

Scientific Calculator

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

Math Photos SolverHandwriting RecognitionAI Math Problem Solver

free with in-app purchases

Slope Calculator Plus

Slope Calculator Plus

Slope Calculator Plus

Slope, Graph & Line Equation

Fast Angle Finder App

PipeGrade: Pipe Slope Gauge

PipeGrade: Pipe Slope Gauge

PipeGrade: Pipe Slope Gauge

Measure Fall, Grade & Drop

Drain Slope Pro - Plumber

Drain Slope Pro - Plumber

Drain Slope Pro - Plumber

IPC 2021 Pipe Slope & Fall

Fall Check - Pipe Slope Tool

Fall Check - Pipe Slope Tool

Fall Check - Pipe Slope Tool

Measure pipe slope on site

ADE Slope For Watch

ADE Slope For Watch

ADE Slope For Watch

FAQ about Slope Calc

What are the best slope calc apps for iPhone?

Underground Safety tops our slope calc apps ranking as of October 2026, with a 4.1-star average from 35 App Store ratings, and it's free to download.

Are there free slope calc apps for iPhone?

Yes — 12 of the top slope calc apps we rank are free to download, including Underground Safety and Slope Calculator - Calc.

Does Underground Safety have ads or in-app purchases?

Underground Safety has no ads and has no in-app purchases, according to its App Store listing as of October 2026.

How many slope calc apps are on the App Store?

We track 247+ slope calc apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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