218+ iOS apps curated and reviewed
Slope Calculator & Arc Finder is the household name in slope calculator & arc finder, but it's far from the only option. We track 218+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $3.99 | 2.3★ (3) | No | No | May 2026 |
| 2 |  | Free | 4.5★ (682) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 4.8★ (21K) | Yes | No | Aug 2026 |
| 4 |  | Free | 4.8★ (39K) | No | Yes | Aug 2026 |
| 5 |  | Free | 4.6★ (9.6K) | Yes | Yes | Aug 2026 |
| 6 |  | $12.99 | 4.9★ (3.8K) | No | No | Jul 2026 |
| 7 |  | $1.99 | 4.0★ (42) | No | Yes | Aug 2026 |
| 8 |  | Free | 4.6★ (401) | Yes | Yes | Aug 2026 |
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.
This app transforms your phone into a precise leveling tool. It offers accurate angle measurement, inclination detection, and augmented reality features for DIY and professional use. Calibration is simple and quick.
This app provides 15 calculators for estimating concrete, blocks, mortar, rebar, and gravel. It supports various shapes and units, offering material cost estimations for construction projects.
This app is a powerful construction calculator designed for professionals working with dimensions. It offers a wide range of solutions for dimensional math, right angle calculations, area and volume, and special functions, helping to improve speed and accuracy in layouts, bids, and estimates.
This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.
This app offers a powerful graphing calculator experience with touch-based input for enhanced interaction. It supports natural textbook notation, advanced math functions, and various plotting capabilities. Users can also utilize its programming features and built-in tools like unit conversion and a periodic table.
This professional tool offers precise slope measurement using all sides of your device and its camera. It supports various modes, relative angle measurements, and advanced calibration for accurate results in diverse applications.
A powerful construction calculator designed for tradespeople. It offers a wide range of tools for estimating, layout, framing, and jobsite calculations, helping to save time and improve accuracy. Supports both imperial and metric units.
This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.
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.
This app is a powerful calculator designed for construction and woodworking professionals, as well as students. It simplifies calculations involving feet, inches, and fractions, offering conversions between various measurement units and displaying equations and results simultaneously. Advanced features are available through optional in-app purchases.
This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.
This app transforms your iPhone into a precise spirit level. It's ideal for various tasks including carpentry, home decoration, and measuring angles and slopes.
Easily estimate the quantity of various landscaping and hardscaping materials like gravel, stone, and sand. Get precise measurements in tons, cubic yards, or cubic meters for your projects.
This utility app measures angles, checks surface flatness, and provides real-size measurements using your phone's sensors. It's ideal for home improvement, DIY projects, and educational purposes, offering accurate results offline with an intuitive interface.
Easily estimate land and field areas using GPS coordinates. Calculate distances between points and get results in multiple units. Premium features include saving measurements, adding notes, attaching photos, and calculating prices.
This utility app helps users calculate various dimensions of circular arcs, including radius, length, width, and height. It offers a simple interface where users input two known values to derive the rest. Additional features include a unit converter, result saving, and sharing capabilities.
This app offers a powerful and customizable calculator experience with a dual-line display for seeing input and results simultaneously. Save and organize your calculations with history, labeling, and email options. Personalize layouts, themes, and fonts for a comfortable and efficient user experience.
A highly customizable calculator app offering a modern interface and extensive features. Personalize themes, button layouts, and visual elements. Track your calculations with a detailed history and access scientific functions.
This offline geometry toolkit provides fast, accurate solutions for homework, studying, and quick checks. It offers tools for angles, triangles, circles, and various shapes, along with coordinate and analytic geometry calculations. Designed for high school students and everyday problem-solving.