115+ iOS apps curated and reviewed
Every iPhone needs a few good circumference apps. We benchmark 115+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
This educational tool quickly calculates circumference, area, and diameter of a circle. It's designed for students to save time on manual calculations with a simple, user-friendly interface.
This app simplifies calculating the circumference of circles. It's a useful tool for students to check their math work in educational settings.
Measure and track your body size metrics over time. Compare your measurements to national and global averages, and gain insights with a built-in analysis tool. Your data is kept private and secure.
This utility app provides a straightforward way to calculate circle properties. Simply input one known value (radius, diameter, circumference, or area) to instantly get the results for the others. It's designed for quick and no-fuss calculations.
Calculate key parameters for 26 geometric shapes, including 2D planes and 3D solids. Offers 783 calculations with interactive 3D views for solids. Supports multiple languages and devices.
This app helps you accurately measure your ring size at home. It offers precise measurements in various units and international standards, eliminating guesswork for perfect-fitting jewelry. Ideal for online shoppers, gift-givers, and jewelers.
Instantly determine your precise ring size for online shopping, custom orders, or gift purchases. Offers multiple international sizing standards and saves your measurements for future use. Get accurate results with clear, step-by-step instructions.
This app simplifies circle geometry calculations by instantly solving for all properties (radius, area, diameter, circumference) from a single known value. It's ideal for students, engineers, designers, and DIYers needing quick, accurate measurements.
This app functions as a digital measuring tool, allowing you to measure objects and distances with accuracy. It also enables you to create sketches with text annotations and share your measurements and designs.
This app uses a 3D body scanner to provide detailed body composition analysis, including body fat percentage, girth, and volume measurements. Track your progress visually with 3D comparisons and heatmaps, and receive personalized feedback to achieve your fitness goals.
Track your weight loss, body measurements, and BMI with this app. Log photos and data to visualize your progress, understand the impact of workouts and diets, and stay motivated with rewards. Syncs with health platforms.
Transform your device into a versatile digital toolkit for precise measurements. Create 2D and 3D floor plans, scan rooms, and measure distances with advanced AI and computer vision. Ideal for DIY projects, home renovations, and professional use.
Transform your smartphone into a precise digital measuring tape. Measure objects, size furniture, and scan rooms in 3D using augmented reality. Supports multiple units and allows saving/sharing measurements.
This app allows you to measure lengths accurately in both inches and centimeters. It provides a simple and straightforward tool for quick measurements.
This app assists students with their math homework by solving a wide range of problems. It offers features for algebra, trigonometry, and calculus, including graphical analysis and equation solving. Optional subscriptions provide unlimited access to all features.
Solve math problems by scanning them and receive step-by-step explanations. Access an AI assistant for detailed answers on math, science, and more. Supports a wide range of math subjects and offers various calculator tools.
Easily determine your ring size at home using your finger or an existing ring. Get results in multiple international sizing systems instantly. Save your measurements for future reference.
Track your child's growth with detailed charts and percentile calculations. Securely store data, export reports, and support both metric and imperial units. Ideal for parents and pediatricians.
This app helps new parents track their baby's feeding, sleep, and diaper changes. It allows multiple caregivers to log activities in real-time and provides detailed statistics on baby's development and routines.
Easily determine your ring size using your phone's screen. Simply place a ring on the designated area and adjust the slider to match its inner edges. The app then displays your ring size in various international formats.