Apps Like Strobe tachometer (RPM meter) for iPhone and iPad
Adjust flicker frequency to measure speed
Measure rotational speed using flicker frequency analysis. Adjust frequency with precision up to 1000 Hz. Detect stationary motion by matching flicker rates. Control connected flashlight for testing. View frequency and RPM values in real time.
by Dmitriy Kharutskiy★ 4.383 ratingsUtilitiesFreeData updated 2026-09-09
Calculates , RPM, final drive ratio, and rollout in inches and millimeters. Stores setups and notes. Allows emailing of data for record keeping. Input pinion and spur sizes for calculations.
Detects metal studs using the device's magnetometer. Provides visual feedback when near metal objects. Requires removing the device case for accurate readings. Indicates proximity to stainless steel objects for verification.
Provides and strobe light functionality using the LED flash. Users can turn the flash on, adjust brightness, and set strobe speed. The offers fast loading and can be used to illuminate dark areas or signal in emergencies.
Clean iPhone speakers by generating a sine wave . Adjust frequency with swipe gestures. Control intensity for effective moisture removal. Perform cleaning sessions to restore speaker clarity.
The app offers adjustable brightness with four levels. It includes a strobe feature with touch and slide adjustment, an SOS emergency mode for distress signals, and a lock screen mode to prevent accidental touches.
The app provides a collection of 13 measuring tools and a flashlight. It includes a barometer, altimeter, compass, teslameter, metronome, stopwatch, timer, seismometer, plumb bob, surface level, spirit level, and ruler.
Explore a maze-like mansion at night to escape while avoiding a monster. Navigate through dark environments and survive terrifying encounters. Face ghosts and jump scares in a survival game.
A with three modes: torch, light, and strobe. Adjust brightness manually or automatically. Lock the screen to prevent accidental closure. Features quick startup and high-quality graphics for older iOS devices.
Utilizes phone LED for lighting needs with adjustable settings and color options.
The app provides flashlight and strobe light functionality using the phone's LED. It includes multiple brightness and strobe speed options along with colored screen features.
Detect and analyze paranormal activity with audio and visual sensors. Communicate with spirits using voice and text prompts. Save and review recordings. Share findings with friends.
Measure turntable speed by placing the phone on the platter and spinning. Display RPM accuracy and stabilization feedback. Adjust playback settings based on turntable performance. Save and export measurement data for future reference.
Calculate pitch, gear ratio, RPM, slip, and speed by inputting any four variables. Toggle to select the parameter to compute. Provides precise mechanical and propulsion-related calculations.
Fan Law Calculator allows users to input rpm, cfm, static pressure, and horsepower. Modifying one value recalculates the others. Ductulator helps size HVAC ducts by inputting shape, dimensions, air temperature, elevation, and roughness.
Plan and visualize shots from approach to target with overlays like entry angle and distance markers. Save favorite shots and use video mode for analysis.