213+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our pyranometer list covers 213+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.5★ (2) | No | No | Jun 2026 |
| 2 |  | Free | 4.6★ (4.9K) | No | Yes | Aug 2026 |
| 3 |  | Free | 4.1★ (34) | Yes | Yes | Jul 2026 |
| 4 |  | Free | 5.0★ (2) | No | No | May 2026 |
| 5 |  | Free | 4.5★ (234) | No | Yes | Jul 2026 |
| 6 |  | Free | 4.5★ (2.5K) | No | Yes | Aug 2026 |
| 7 |  | Free | 4.2★ (139) | No | No | May 2026 |
| 8 |  | Free | 4.8★ (4.7K) | No | No | Aug 2026 |
Transform your iPhone into a solar radiation meter to measure solar energy in Watts per square meter. This app is designed for fun and educational use, offering a glimpse into professional solar measurement principles.
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.
Predict your solar power generation for up to 360 hours and 15 days ahead. This tool helps you save energy and money by planning appliance usage, EV charging, and understanding your system's output. It also provides detailed weather forecasts and data export options.
This tool estimates solar radiation intensity on a horizontal surface for any location and time. It helps determine the need for recalibration of radiation sensors by comparing their measurements to calculated clear sky values. Accuracy is high when used near solar noon in summer.
Maximize your solar panel output with this tool. It guides you to adjust your panels' azimuth and tilt based on real-time solar data. The app also provides a solar compass and forecasts your potential monthly energy generation.
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.
Transform your iPhone, iPad, or iPod touch into a digital thermometer with this app. It works with a separate hardware probe to measure temperatures of liquids and other substances, create graphs, and set alerts. Ideal for cooking, science education, and quality control.
This smart thermometer offers cloud-connected remote temperature monitoring for various environments. It supports multiple probes for accurate readings and can be accessed from anywhere via the cloud.
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.
Transform your phone into a versatile measuring tool. Accurately measure distances, lengths, widths, and heights of objects and spaces using your device's built-in sensors. Save your measurements for later use.
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.
Easily measure tilt angles with this free protractor app. It displays inclination from 0 to 359 degrees, along with gradient percentages and angles summing to 180 or 360 degrees. Switch to theodolite mode to set a specified angle to zero.
Transform your device into a versatile measuring toolkit. It offers a comprehensive suite of 13+ tools including a barometer, altimeter, compass, metronome, stopwatch, timer, and various levels for diverse applications.
Measure light intensity accurately with your smartphone. This tool provides real-time readings in lux and foot candles, calibrated with professional equipment. Ideal for indoor and outdoor use, it offers average and maximum value tracking.
This app calculates thermal comfort by evaluating heat, cold, dryness, and moisture. It provides detailed air property calculations and indicates if conditions are within a comfortable range, with easy dial input and color-coded temperature.
This app provides a suite of digital measurement tools, including a spirit level, angle finder, laser level, and metal detector. It helps users accurately measure angles, check surface flatness, and align objects for various home, DIY, and professional projects. Features include sound and light alerts, calibration, and AR-based laser lines.
Monitor cooking temperatures remotely from your iOS device. Get live readings, set custom alerts for various foods, and track temperature graphs for repeatable results. Ideal for grilling, baking, candy making, and homebrewing.
Measure angles of objects using your device's camera. This utility app acts as a digital protractor, allowing you to accurately determine angles in real-world scenarios. Perfect for when a physical protractor is unavailable.
Transform your device into a versatile measuring tool. Accurately check the horizontal and vertical alignment of objects using your camera and device sensors. Measure angles with precision for DIY projects or home improvements.
Measure temperature using an infrared module connected to your phone. This app works with a specific infrared temperature module (TMS) that plugs into your phone's jack to display readings.