206+ iOS apps curated and reviewed
If you already know Ring, this is the deeper bench. 206+ ring sensor apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of May 2026.
Monitor your home remotely with video doorbells, security cameras, and alarm systems. Receive instant alerts for visitors and motion, view live HD video, and communicate with guests. Smart lights and alarm systems offer further control and safety features.
Easily determine your ring size across multiple countries using metric or imperial units. Features visual guides and supports various international sizing standards. Share your size and explore a jewelry catalog.
Measure ambient light levels in Lux using your iPhone's camera. Optimize sleep quality by understanding light exposure throughout the day and night.
Misplaced your smart ring? This app helps you locate it using Bluetooth proximity tracking and GPS history. You can also share the app with a friend to help find your ring remotely, ensuring you never lose it.
Track your steps, sleep, and heart rate with this app designed for smart rings. It offers various sports modes with optional positioning and allows users to share historical data with others. The app also synchronizes data with Apple Health.
This smart ring offers comprehensive sleep monitoring, tracking sleep stages, efficiency, and heart rate to provide a sleep score. It also monitors daily activity like steps and calories, and provides wellness insights for a healthier lifestyle.
Accurately measure your finger size or compare existing rings to find the perfect fit. This tool simplifies ring sizing for confident online purchases and jewelry selection.
Easily measure jewelry ring sizes using your phone's screen. Simply place your ring on the screen and adjust the slider to match its inner edge. The app provides accurate sizing in multiple international measurement systems.
Easily determine your accurate ring size for any finger with this intuitive application. It provides precise measurements down to 1/8 sizes and offers convenient conversion to international sizing standards.
This app turns your smartphone into a scientific instrument suite, enabling measurement, recording, analysis, and export of real-time sensor data. It offers tools for kinematics, acoustics, light, magnetism, and more, suitable for students, educators, researchers, and hobbyists.
This smart wearable device combines technology and fashion to offer users convenient functions and personalized experiences. It is important to note that this is not a professional medical device, and its data is for reference only.
Instantly determine your ring size by taking a photo of your hand. The app uses advanced AI vision algorithms to accurately calculate your perfect fit, requiring only a standard-sized card in the frame for reference.
Track your daily activity, including steps, calories, and distance, with intelligent motion timelines. Analyze your sleep patterns, including deep and light sleep duration, and receive a sleep score. Record your movement routes with GPS and sync data with Apple Health for a comprehensive health overview.
Easily determine your correct ring size using your smartphone's camera. This app provides accurate measurements for online jewelry purchases or custom designs, eliminating the need for resizing.
This app connects to sophisticated rings that display a loved one's real-time heartbeat. It's designed for couples, those seeking alternatives to traditional wedding bands, or individuals in high-risk professions to foster connection and reduce worry.
This app provides precise reminders for contraceptive ring insertion and removal, ensuring method safety. It offers clear cycle information, customizable alarms, and discreet data management. Additional features like personalized notifications and calendar integration are available via subscription.
Easily determine your precise ring size with this user-friendly tool. Avoid guesswork and ensure a perfect fit for your next ring purchase, whether for yourself or a gift. It simplifies the sizing process for accurate results.
This app allows real-time remote monitoring of temperature, humidity, and power status using a cellular-connected sensor. It sends customizable alerts for critical environmental changes, providing peace of mind for property conditions.
Accurately measure your ring size for any jewelry purchase. This app provides precise sizing guides, international compatibility, and allows you to save your measurements for easy reference. Get expert tips to enhance your jewelry shopping experience.
This application connects to smart rings to display and analyze your daily exercise and sleep data. It helps you understand your health status by providing visual insights into your activity levels and sleep patterns.