220+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our meter usage list covers 220+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.
Monitor your home's water consumption with this app. View detailed usage history, identify leaks, and understand your water usage trends. Connect to your supported water utility account to make your water usage visible.
Access real-time information about your utility service, including usage and costs, from your smart meter. Monitor your consumption 24/7, track daily charges, and manage alerts. Optional features may include reporting outages and making payments.
Easily monitor your cellular and WiFi data usage in real-time with intelligent forecasts and custom alerts. Never exceed your data cap again with at-a-glance widgets and Siri integration.
This app functions as a standalone reflective light meter or pairs with hardware for professional flash and color temperature measurements. It offers various modes for photography and videography, storing measurements with notes and location.
Monitor your mobile data usage and avoid costly overages. Set your data plan limits and billing cycle to receive automatic alerts when you approach your thresholds. Track data consumption in real-time and view usage statistics directly on your device.
Monitor your device's core performance metrics with this utility app. It provides real-time information on battery status, disk usage, CPU load, and network connections. Customize your view with light or dark themes and receive instant updates on system changes.
This app provides precise light metering for film photography, eliminating the need for external hardware. It offers various metering modes and customizable profiles to ensure perfect exposures for manual cameras. Advanced features like reciprocity failure correction are available with a PRO plan.
This app acts as a professional-grade light meter for plants, measuring PAR, PPFD, DLI, and more using your device's camera. It helps optimize plant lighting by providing accurate readings and in-app guides, with optional advanced features available through purchase.
Measure light intensity in lux and foot candles with this 2-in-1 meter. Optimize photography settings, adjust indoor lighting, or prevent eye strain with professional-quality readings directly from your smartphone.
Transform your device into a versatile toolkit with a comprehensive suite of measuring instruments. This app offers a metronome, stopwatch, timer, ruler, level, and various sensors to assist with a wide range of tasks.
This app functions as a portable light meter, essential for film photographers using manual cameras. It accurately measures reflected light and provides reciprocity calculations for precise exposure control.
This application functions as a professional-grade sound level meter, measuring decibels (dB) with advanced DSP algorithms. It offers adjustable filters, decay rates, and ranges, and can be calibrated for accuracy. It supports both internal and external microphones for versatile sound measurement.
Transform your smartphone into a professional light meter. Measure illuminance and color temperature with scientifically validated accuracy, trusted by professionals. Requires a simple diffuser for precise readings.
Turn your phone into a professional sound level meter to measure decibel (dB) levels and hertz (Hz) sound in real-time. Measure sound intensity, set custom alerts, and log data for later review with a clean and intuitive interface.
This app displays your device's current battery percentage and offers comprehensive system monitoring. Track CPU usage, RAM, network activity, and system uptime with detailed graphs and statistics.
This app connects to a wireless light and color meter via Bluetooth, displaying exposure, color temperature, and other light data on your smartphone. It helps photographers and videographers set accurate exposure and white balance for various camera types and lighting conditions.
This application measures sound levels in decibels using your device's microphone. It displays current, peak, and maximum SPL levels, with options to save measurements and view historical data through a graph histogram. The app allows for self-calibration to ensure accuracy.
Monitor your internet speed and data usage in real-time directly from your Notification Center and Lock Screen. Track your daily statistics and billing cycle status with convenient widgets and live graphs.