247+ iOS apps curated and reviewed
Every iPhone needs a few good ratio calculator tool apps. We benchmark 247+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 3.3★ (12) | No | Yes | Jul 2026 |
| 2 |  | Free | 4.5★ (8) | Yes | No | Aug 2026 |
| 3 |  | Free | 4.7★ (13K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | — | Yes | No | May 2026 |
| 5 |  | Free | — | No | No | May 2026 |
| 6 |  | Free | 4.6★ (36K) | Yes | Yes | Sep 2026 |
| 7 |  | Free | 4.4★ (7) | No | No | Aug 2026 |
| 8 |  | $0.99 | — | No | No | May 2026 |
This utility app specializes in calculating proportions, solving for an unknown value in direct and inverse ratio equations. It handles scenarios like price increases and speed decreases, offering a simple yet effective tool for proportion-based problems.
This free utility app calculates ratios and totals from given inputs. It can also perform back calculations to determine ratios from a total. It even helps calculate heating time based on microwave wattage.
This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.
Easily calculate and save frequently used ratios with a clean, user-friendly interface. Ideal for scientific experiments, cooking, and design projects, this tool simplifies proportion management for enhanced learning and hobbies.
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.
This utility app simplifies calculations for proportional expressions and mathematical formulas. It offers a dedicated ratio calculator for recipes and proportions, and a text calculator that accepts keyboard input or Apple Pencil for complex equations.
This tool helps users calculate proportions based on the golden ratio (1:1.618). Input any one value, and it automatically computes the other two, aiding in the creation of aesthetically pleasing designs.
This utility app helps users quickly calculate precise dilution ratios for various liquids. It supports multiple calculation methods and unit conversions, making it ideal for tasks like mixing car wash soaps, pesticides, and cleaning agents.
Easily calculate any ratio for design projects. Input a base ratio and either width or height to automatically determine the other dimension. Offers dark and light themes for usability in any lighting.
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.
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 both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.
Visualize and plan your spaces with an augmented reality measuring tool. Create accurate floor plans, measure distances, and arrange furniture with ease. Ideal for homeowners, designers, and real estate professionals.
Quickly calculate missing dimensions for layouts and designs based on various aspect ratios. Features presets like the golden ratio, custom inputs, and a live visual preview. Automatically copies results to your clipboard.