208+ iOS apps & games curated and reviewed
Out of 208+ gammon api gravity calculator apps and games on iOS, 16 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $9.99 | — | No | No | May 2026 |
| 2 |  | $9.99 | 4.0★ (8) | No | No | Jun 2026 |
| 3 |  | Free | 4.7★ (12K) | Yes | Yes | Jul 2026 |
| 4 |  | Free | 4.6★ (4.8K) | Yes | No | Jul 2026 |
| 5 |  | Free | 4.9★ (7.4K) | Yes | Yes | Jul 2026 |
| 6 |  | Free | 4.8★ (1.9K) | Yes | No | Jul 2026 |
| 7 |  | Free | 4.8★ (5K) | Yes | Yes | Jul 2026 |
| 8 |  | Free was $5.99 | 4.8★ (2.4K) | No | Yes | Jul 2026 |
Calculate corrected API gravity for jet, gasoline, and diesel fuels at 60°F. This digital tool also determines the total weight of the fuel, replicating the functionality of physical slide calculators.
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.
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 is a meditative physics puzzler where you launch planets to create stable orbits around black holes. Explore a variety of levels, create your own challenges in a sandbox mode, and enjoy a visually artistic and relaxing experience.
This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.
Instantly solve math problems by taking a photo. Get step-by-step explanations, AI-animated videos, and interactive graphs to understand complex concepts. This AI-powered homework helper covers various subjects beyond math.
This app offers a versatile calculator experience with basic, scientific, and advanced modes. It features real-time results, unit conversions, custom functions, and a shareable history. Optimized for various Apple devices, it's designed for ease of use by students, professionals, and scientists.
This app offers a versatile calculator with multiple modes, including scientific, bitwise, statistical, trigonometric, base conversion, and time calculations. It features a simple mode with large buttons and customizable interface. Widgets for notification center and Apple Watch are also included.
This app provides comprehensive U.S. and metric unit conversions and advanced calculations for design and building projects. It offers solutions for geometry, weight, and dimensional analysis, with a user-friendly interface and built-in help.
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 provides essential statistical calculations and regression analysis with an intuitive interface. Easily input data, view statistical measures, and perform various regression models. Advanced features are unlocked via in-app purchases.
Simulate the forces of gravity by flinging particles and observing their interactions. Create celestial bodies like planets and black holes, and customize their properties. Explore vast cosmic simulations with intuitive zoom and pan controls.
This app quickly calculates unknown angles and sides of right-angled triangles. It offers a workings view for detailed solutions, scale drawings, and a formula reference. Input angles in various formats and customize decimal precision.
This app is a powerful scientific calculator that can handle fractions, trigonometry, and statistics. It offers an exam mode to simulate a handheld calculator for test use. Millions use it for learning math and science.
Easily measure the area and distance of any space using GPS or manual map pointing. Save, share, and organize your measurements with customizable units and multiple map views. Includes a compass for navigation and an SOS feature for emergencies.
This app offers a powerful scientific calculator, extensive unit conversion capabilities across dozens of categories, and real-time foreign exchange rates for over 150 currencies. It also includes a world clock and convenient home screen widgets for quick access to its functions.
This app offers a versatile calculator with both basic and scientific functions. It includes advanced features like currency and unit conversions, customizable themes, and history tracking. Optimized for both portrait and landscape modes, it's designed for users needing precise calculations and conversions.
This app offers a comprehensive suite of 15 calculators for everyday and scientific needs. Easily perform basic arithmetic, complex scientific functions, and specialized calculations like sales tax, age, and loan payments. It also includes a robust unit converter for various measurements.