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.



169+ iOS apps curated and reviewed
Alt is the household name in joshua hinman, but it's far from the only option. We track 169+ 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 | 4.7★ (31K) | Yes | Yes | Aug 2026 | |
| 3 | Free | 4.7★ (12K) | Yes | Yes | Aug 2026 | |
| 4 | Free | 4.8★ (733K) | No | Yes | Aug 2026 | |
| 5 | Free | 4.6★ (7) | No | Yes | May 2026 | |
| 6 | Free | 4.2★ (51K) | Yes | Yes | Aug 2026 | |
| 7 | Free | 4.6★ (121K) | Yes | Yes | Aug 2026 | |
| 8 | Free | 4.9★ (425K) | Yes | 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.






Master math and computer science through interactive, visual lessons. This app focuses on active problem-solving and personalized practice to build critical thinking and STEM skills. Ideal for students and lifelong learners seeking to deepen their understanding and confidence.





This app offers a comprehensive math learning experience for all ages, from preschoolers to university students. It provides step-by-step solutions for basic arithmetic and more advanced problems, helping users build math skills through practice and engaging games.


Scan any math problem to receive instant, step-by-step explanations and accurate solutions. This app breaks down complex problems into manageable steps, helping users understand the 'how' and 'why' of math. It supports a wide range of math topics, from basic arithmetic to advanced calculus.


Access a sample of over 700 essential math formulas, figures, tips, and examples across various subjects. This educational tool is ideal for students, teachers, and professionals needing quick math references.


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.


Engage in fun, game-based math practice with thousands of lessons and exercises. This app uses proven methodologies to build foundational skills and accelerate progress, offering an interactive experience with high-accuracy digit recognition. It provides unlimited offline access and is constantly updated with new content for all levels.


Solve math problems instantly by taking a photo or typing your question. Get step-by-step solutions for algebra, graphing, calculus, and more. Understand complex math concepts with unlimited access to answers.


This app offers over 5,000 video lessons created by certified teachers to help K-12 and college students master math and English. It includes features like photo problem search, practice exercises with feedback, and progress tracking, along with test prep for various standardized exams.


Access a comprehensive collection of essential math formulas for high school and college calculus students. Quickly find the formulas you need without flipping through textbooks or searching online.


This AI-powered math tutor creates personalized learning paths to help users master math concepts. It offers adaptive lessons, clear explanations, and engaging exercises tailored to school curricula, making learning approachable and fun.


Solve math problems instantly by taking a photo or entering an equation. Get step-by-step solutions to understand the process and improve your math skills. Covers a wide range of topics from basic arithmetic to calculus.


Access a comprehensive library of math courses with video lessons, interactive practice, and self-tests. Get personalized help for all levels, from elementary school to college and standardized test preparation. Offers a 3-day free trial.


Struggling with math? This app offers instant solutions and clear, step-by-step explanations for a wide range of math topics. Simply snap a photo of your problem to get accurate answers and learn the underlying formulas.


Access over 1500 video lessons and 500 hours of step-by-step instruction across math, science, and engineering subjects. Learn at your own pace with features like favoriting, search, and downloadable worksheets. Achieve academic success with expert-led tutorials.


Instantly solve math problems by scanning them with your phone. Get detailed, step-by-step solutions in PDF format, complete with graphical representations. Ideal for homework help, from basic algebra to college-level calculus.


Access MATLAB commands, create and edit files, and visualize data from your mobile device. Connect to the cloud for expanded storage and access to add-on products. Acquire data from sensors and your camera for real-time analysis.


This app provides instant, step-by-step solutions for a wide range of math problems, from basic arithmetic to calculus. Users can scan math problems with their camera and receive detailed explanations, multiple solving methods, and graphing tools. It's designed to help students understand and solve challenging math questions quickly.


This app offers a comprehensive mathematics curriculum for elementary school students, utilizing effective pedagogical approaches like the Singapore Method and JUMP Math. It follows a Concrete-Representational-Abstract progression to build deep understanding and aligns with major international curricula.


Learn and practice mental math tricks to perform calculations at lightning speed. This app helps you master multiplication, division, and squaring techniques through engaging practice sessions and progressive levels. Ideal for students, teachers, and anyone looking to sharpen their cognitive abilities.