This app calculates your precise altitude above sea level using your device's barometer or GPS. It offers a realistic, retro design and automatically calibrates for local atmospheric pressure, with optional manual calibration for advanced users.



250+ iOS apps curated and reviewed
Alt is the household name in joshua hinman, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 4.5★ (8) | No | No | Aug 2026 | |
| 2 | Free | 4.5★ (8) | No | Yes | Jul 2026 | |
| 3 | Free | 4.6★ (726) | No | No | Aug 2026 | |
| 4 | Free | 4.3★ (6) | No | No | Aug 2026 | |
| 5 | Free | 4.9★ (14) | No | Yes | Aug 2026 | |
| 6 | Free | 4.6★ (25) | No | Yes | Aug 2026 | |
| 7 | Free | 4.7★ (36) | No | Yes | Jul 2026 | |
| 8 | Free | 4.7★ (90) | No | Yes | Aug 2026 |



This app calculates your precise altitude above sea level using your device's barometer or GPS. It offers a realistic, retro design and automatically calibrates for local atmospheric pressure, with optional manual calibration for advanced users.






This app uses AI to solve math equations by scanning or typing them. It provides step-by-step solutions and offers educational games to enhance understanding for students of all levels.





Enhance your mathematical understanding with a comprehensive reference covering 23 subjects, over 200 articles, and interactive illustrations. Explore detailed explanations, solved problems, and proofs to master concepts from algebra to calculus. Access all content and features with a premium upgrade.


This app connects students enrolled at a specific math learning center with its services. It allows users to schedule appointments, sign up for events, view promotions, and purchase sessions. The platform aims to make math learning accessible and convenient for students of all ages and levels.


This app uses AI to instantly solve math problems from photos or manual input. It provides quick, detailed step-by-step explanations and saves your problem history for easy review. Ideal for students and math enthusiasts seeking faster learning.


Instantly solve math problems by taking a photo. Get detailed, step-by-step solutions with explanations for all levels of mathematics, from basic to advanced. Perfect for students and educators needing homework help or a deeper understanding of math concepts.


Learn math interactively by solving problems directly on-screen with intuitive gestures. This app offers step-by-step solutions and real-time feedback for algebra and calculus, cutting learning time in half.


This app uses AI to instantly solve geometry problems from photos. It provides step-by-step solutions and interactive visualizations to enhance understanding. It's designed for learners of all levels to master geometry.


Instantly solve math problems by taking a photo, even handwritten ones. Get step-by-step solutions with explanations and graphical representations to improve your understanding and check your homework.


This app transforms your finger drawings into precise geometric shapes on your iPhone or iPad. It turns math into an experimental subject, encouraging learners to discover concepts through hands-on interaction rather than presenting pre-made solutions.






This app provides a conceptual approach to learning mathematics, helping students understand fundamentals rather than relying on memorization. It supports students at their own pace, building a strong foundation for advanced subjects and fostering confidence.


Master geometry with an interactive, visual learning tool. Explore concepts on a dynamic canvas, visualize theorems in real-time, and solidify understanding with knowledge checks and practice problems. Offers a comprehensive curriculum for high school and advanced middle school students.


This AI-powered assistant provides step-by-step solutions and explanations for a wide range of math topics, from basic arithmetic to advanced calculus. It offers graphing capabilities, number theory support, and data analysis tools to help users understand complex concepts.


Enhance your mental math abilities with this app. Practice fundamental arithmetic, equation solving, and polynomial factoring. Track your progress through various difficulty levels to prepare for exams.


This educational app provides interactive math lessons and practice problems for 4th graders. It offers automated grading, step-by-step explanations, and parental controls for progress tracking. The app allows for offline use of up to six lessons, making it ideal for on-the-go learning.




This educational game helps students master equivalent fractions, decimals, and percents. It offers visual aids like number lines, grids, and pie charts to support understanding. Designed by math educators, it aims to make learning math concepts accessible and engaging.


This app provides instant math problem solutions with detailed, step-by-step explanations. It uses photo-scan technology to analyze handwritten or printed problems, making math accessible for all levels. Learn concepts thoroughly and avoid common mistakes with this AI-powered tutor.