210+ iOS apps curated and reviewed
The best Which of the following statistics is used to measure the strength of the association between two variables (e.g., amount of weekly exercise vs. mood)? Question 13 options: A) correlation coefficient B) median C) mean D) mode E) standard deviation apps on iPhone average 4.6★ across 210+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
Track your heart rate, monitor body indexes, and access guided meditation sessions. This app helps you develop healthier habits with personalized insights and health-focused content.
This app offers a personalized wellness toolkit to help users navigate difficult emotions and build positive habits. It provides actionable strategies and uplifting tools for greater balance, support, and energy. Discover features like mood tracking, instant mood boosters, community support, and personal growth challenges.
This app uses AI and medical science to predict your lifespan and create a personalized plan for a longer, healthier life. It analyzes your health data, provides evidence-based recommendations, and tracks your progress in real-time.
This app calculates standard deviation, variance, and other statistical measures for a given set of values. It simplifies complex statistical formulas with a user-friendly interface and accurate results.
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.
Monitor your heart rate and track key health metrics like HRV, stress, and energy levels using your phone's camera. Gain insights into your heart health with educational content and progress reports. Connect with a community and access premium features through subscription.
This app helps students and teachers visualize and understand core statistical concepts like the Central Limit Theorem, correlation, and hypothesis testing. Interactive modules allow for step-by-step exploration of sampling distributions, regression, and error probabilities.
Transform your smartphone into a versatile measurement tool. Accurately estimate the weight and dimensions of objects using your camera with advanced AR and computer vision. Ideal for chefs, DIYers, shippers, and anyone needing quick, precise measurements.
This app uses your phone's camera to measure your heart rate and blood pressure. It provides historical data, health insights, and personalized tips for a healthier lifestyle. It also includes personality tests and guided meditations.
This app helps you understand how your daily habits, symptoms, and lifestyle impact your well-being. It provides data-driven insights and correlations to identify triggers, optimize routines, and manage various health conditions. Share your progress with healthcare providers.
Track your mental and physical well-being with this companion app for Apple Watch. It monitors stress, sleep, hydration, and habits, providing insights and smart reminders to help you live a healthier, more balanced life. Discover patterns and optimize your daily routines for better productivity and happiness.
This app provides instant, step-by-step solutions to statistics problems by analyzing photos of your questions. It covers essential statistical concepts and offers detailed explanations for all learning levels.
Learn and practice Dialectical Behavior Therapy (DBT) skills to manage emotions, build resilience, and improve relationships. This app offers expert-created lessons, interactive exercises, and progress tracking to support personal growth and emotional well-being.
This app helps you track your mood, health, productivity, and habits. It offers custom and pre-built trackers, integrates with Apple Health, and provides insights through graphs and stats. Upgrade for unlimited access to all features.
Track and record your vital signs, including heart rate and its variability, in a personal healthcare diary. Monitor changes over time with charts and gain insights into your heart health. Syncs with Apple Health for comprehensive tracking.
This app is a statistical calculator for performing confidence intervals and hypothesis tests on proportions and means. It offers various tests including z-tests, t-tests, McNemar's test, and ANOVA, with clear visualizations of results and P-values. It also includes a data editor and works offline.
This AI-powered app simplifies statistics for students, researchers, and professionals. It offers instant guidance on choosing statistical tests, step-by-step explanations, and plain-language interpretation of results. Get personalized learning and practical insights for studies, research, or business decisions.
This advanced calculator app offers comprehensive tools for high school and college students, covering everything from pre-algebra to calculus and statistics. It features high-resolution graphing, matrix operations, and detailed statistical analysis, all accessible through an intuitive interface.
This app offers a comprehensive personality assessment, going beyond single-aspect tests to provide a holistic view of your traits. It helps you understand yourself and improve relationships by connecting with others and receiving personalized guidance.
This app uses AI to solve statistics problems from photos or uploads. It provides step-by-step explanations for a wide range of statistical topics, from high school to doctoral levels. Users can easily share solutions and explore features with a free trial.