This app allows users to quickly open and view FITS files on iOS devices using GPU acceleration. It features automatic image stretching and supports various color formats and bit depths, making astronomical image analysis more accessible.



206+ iOS apps curated and reviewed
AstroFITS is the household name in astrofits, but it's far from the only option. We track 206+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 2.0★ (1) | No | Yes | May 2026 | |
| 2 | Free | 4.8★ (5.9K) | No | Yes | Jul 2026 | |
| 3 | Free | — | No | Yes | Jul 2026 | |
| 4 | Free | 4.8★ (213K) | No | Yes | Jul 2026 | |
| 5 | Free | 4.7★ (82K) | Yes | Yes | Jul 2026 | |
| 6 | Free | 4.8★ (278K) | No | Yes | Jul 2026 | |
| 7 | Free | 4.8★ (53K) | Yes | No | Jul 2026 | |
| 8 | Free | 4.8★ (14K) | — | No | Jul 2026 |



This app allows users to quickly open and view FITS files on iOS devices using GPU acceleration. It features automatic image stretching and supports various color formats and bit depths, making astronomical image analysis more accessible.






This app offers high-intensity functional fitness training combining strength and conditioning. It uses an AI algorithm to personalize your workouts, track progress, and provide instructional videos. Workouts can be done anywhere, with or without equipment.







This app offers fun, beginner-friendly workouts, including unique wall Pilates routines, designed for women. Track your progress and get personalized tips to achieve your fitness goals without needing any equipment. Make fitness enjoyable and accessible from anywhere.


Get personalized fitness and nutrition plans to achieve your wellness goals. This app offers customized workouts and healthy meal recipes, with guidance on exercise form and ingredient alternatives. It supports various dietary needs and preferences, making healthy living accessible.


This app creates personalized AI-driven workout plans to help you build muscle, gain strength, and lose weight. It adapts to your fitness level and available equipment, offering over 1000 exercises with video guides. Track your progress and get support from trainers.


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This app offers a comprehensive fitness coaching experience with a vast library of exercises and expert-designed workout routines. It provides personalized training plans, video guidance, and options for all fitness levels, allowing users to achieve their health and fitness goals at home.


Shop the latest activewear and gym clothing collections. Get early access to new releases, personalized recommendations, and exclusive content. Enjoy a seamless shopping experience with secure checkout and order tracking.


Build muscle, gain strength, and lose weight with personalized workout routines. This app offers a comprehensive approach to fitness, including exercise, diet, and habit formation, with over 2400 exercises and custom meal plans.


Access personalized workout plans from elite trainers, whether you're at home or in the gym. Track your progress, get step-by-step video guidance, and join a supportive community to achieve your fitness goals.


This app offers personalized glute-focused workouts designed by certified professionals. It provides effective routines for shaping and toning, trackable progress, and educational content to help you reach your fitness goals anytime, anywhere.


This app uses an advanced algorithm to create personalized workout plans for home or gym. It optimizes sets, reps, and weights to help you build muscle, get toned, or lose weight efficiently. Track your progress and achieve your fitness goals with data-driven routines.


Access a vast library of on-demand workouts, exercise tutorials, and activity tracking, even without a membership. Members enjoy exclusive perks like brand discounts, referral bonuses, and gym crowd insights.


This platform offers a comprehensive approach to fitness and wellness, specializing in strength training for women. It provides a variety of workout programs, nutrition guidance with over 300 recipes, and tools to track progress and well-being. Users can access expert-led sessions and community support to achieve their health goals.


This app offers a comprehensive yoga and fitness experience for all levels. It provides a wide variety of guided classes, including classic yoga, chair yoga, and Pilates, along with personalized programs and meditation sessions. Users can track their progress and download classes for offline use.


This app offers diverse workout options, from guided programs to custom routines, with detailed tracking of health metrics and progress. Connect with a community of users, earn rewards, and shop for supplements directly within the application.


Access a comprehensive suite of fitness, health, and wellness resources without a club membership. Features AI-powered personalized plans, expert-led classes, nutrition guidance, meditation, and event registration.


This app offers a comprehensive fitness experience with live-streamed boot camps, on-demand workouts, and nutritional guidance. It focuses on building strength, confidence, and community for women and their families, including features for booking classes and tracking progress.


Achieve a healthier lifestyle with personalized fitness, nutrition, sleep, and mindfulness programs. Offers a wide range of at-home workouts, guided meditations, and meal plans. Syncs with Apple Health for comprehensive tracking.