The app visualizes and measures current acceleration using 3D graphics. It offers five display modes, including absolute and relative acceleration, and rotation around the X, Y, and Z axes.
by Peter Breitling★ 2.710 ratingsUtilitiesFreeData updated 2026-09-12
The app visualizes magnetism in three dimensions using the iPhone's magnetometer. It can be used to explore magnetic fields, detect metal, and estimate north-south position without GPS.
The app measures relative angles and rotation using the gyroscope sensor. It offers five unit modes, background or foreground display rotation, and fine calibration of the gyrometer.
Monitor device with real-time data display and graphical charts. View text output and detailed descriptions for each sensor. Perform sensor tests and check parameters. Export data for analysis.
Monitor CPU frequency and reduction details. View real-time CPU performance metrics. Check screen resolution and size. Display battery design capacity. Track network IP and speed. Identify GPU type and extensions.
Set tempo with keypad or slide pendulum for 20 to 999 BPM. Choose time signatures from 2/1 up to 9/8. Adjust beat subdivisions. Start, stop, and reset the . Sync with Apple Health for workout tracking.
Measure acceleration, orientation, and motion with built-in sensors. Record and analyze real-time data for experiments. Detect and generate sound tones. Visualize audio waveforms. Export measurements and graphs for scientific use.
Meter detects and records seismic waves from earthquakes, volcanic eruptions, and other vibrations. It uses the phone's accelerometer to measure and analyze motion. Displays a graph of ground movement over time. Allows users to save and review data.
A with basic arithmetic functions and a history bar for tracking previous inputs. Supports rotation and theme customization. Includes haptic feedback for 7 and later. Loads quickly and runs without fullscreen ads.
Track speed, distance, altitude, and heading with real-time GPS data. Record trips with route tracking and save journeys for later. View live maps with position updates. Export trip data for analysis.
Measures angles and incline using device sensors. Users can align objects horizontally or vertically. The displays real-time angle readings and allows calibration. It supports multiple orientation modes for precise leveling.
Measure vehicle acceleration from 0-100 km/h and 100-200 km/h. Track quarter-mile times over 402 meters. Use built-in GPS and accelerometer for accurate data. Save and view speed and time logs. Share results via social media.
Create and manage notes on home screen and lock screen. Add multiple notes in various widget sizes. Edit notes quickly with text, color, and formatting options. Pin notes to lock screen for visibility.
Measure angles with horizontal, vertical, and dual-axis guides. Use bubble and circle levels for precise alignment. Set custom zero points for relative measurements. Lock readings for easy recording. Display real-time degrees and visual indicators.
Measure atmospheric pressure using the device's barometric sensor. Determine elevation with GPS-based altimeter. Access a ruler, surface level, metronome, stopwatch, timer, and seismometer. Includes flashlight.
GPS speedometer displays real-time speed for driving, biking, or walking. Measure trip distance offline. Track altitude for planes. Switch between mph, km/h, and knots. Use Today Widget or Apple Watch. Adjust screen color and toggle mirror .