Best Rpm Reader Apps

Strobe light effect simulationRotational speed measurement (RPM/Hz)Slow-motion video recording

This app uses slow-motion video to create a strobe light effect, allowing you to measure rotational speeds. It records video with detailed information like frame rate and exposure, and offers customizable text overlays.

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Rpm Meter: Calibrate Turntable

Check Speed and Error

Real-time RPM measurementGyroscope and camera modesLive RPM gauge and graph

Measure the speed of any rotating object with precision using your phone's gyroscope or camera. View real-time RPM data on a live gauge and graph, save your measurements, and compare historical readings. Ideal for calibrating turntables and testing various rotating equipment.

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by Natural Style Co. Ltd.

Giri -The RPM Checker-

Rotational speed measurementNoise removal for accuracySpeed conversion panel

This tool measures the rotational speed of motors, ideal for hobbyists working with drivable model cars. It features noise removal, speed conversion, and a memo panel for recording measurements. Customizable skins add a personal touch to the user experience.

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Strobe tachometer (RPM meter)

+ Laser Tachometer + Magnetic

Strobe tachometer functionLaser tachometer modeMagnetic tachometer mode

Measure rotational speeds of objects using your phone's flashlight, laser, or magnetic sensor. Detect precise RPMs with adjustable flicker frequencies and a wide measurement range. Ideal for analyzing fan speeds, engine RPMs, and more.

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Camera RPM Meter - StrobeLight

Camera Tachometer - RPM Meter

Measure RPM with mobile cameraMeasure RPM with strobe light simulationAdjust RPM with seek bar or buttons

Measure rotational speed using your phone's camera or a simulated strobe light. Simply mark the rotating object and adjust the settings until it appears stationary to get an accurate RPM reading. The app also functions as a torchlight.

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SoundRPM: Engine Tachometer

Estimate RPM by sound

Estimate engine RPM from soundSupports 2-stroke and 4-stroke enginesChoose cylinder count and RPM range

Estimate engine RPM using your iPhone's microphone without any extra hardware. Ideal for classic cars, motorcycles, and small engines, it provides real-time readings with confidence levels and measurement history.

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RPM - Fidget Spinner Speed Meter

by Konstantinos Vogiatzakis

Measures RPM using image processingFidget spinner speed detectionSetup guide with foil and camera

This app uses your device's camera to measure the speed of a fidget spinner in revolutions per minute (RPM). Follow simple setup steps with aluminum foil and your camera's red circle to get accurate readings. Compete with friends and share your high scores on social media.

🎬 Entertainment

RPM Meter for Turntable

No fuss Tachometer

Measures Min RPMMeasures Max RPMMeasures Avr RPM

Easily measure the actual RPM of your turntable with this straightforward tachometer. It provides detailed readings including minimum, maximum, and average RPM, along with percentage discrepancy and wow and flutter measurements.

Smart RPM and Speed meter

Smart RPM meterSpeed meter functionalityReal-time vehicle data

This application functions as a smart RPM and speed meter, providing real-time data for users. It offers a digital display of vehicle performance metrics. The app is available for free with an optional premium subscription.

⚽ Sports

Speedometer∞

Measure speed on device

Digital GPS speedometerTrip computer (speed, distance, time)Acceleration measurement

This app functions as a digital GPS speedometer, offering a comprehensive trip computer to track various travel metrics. It also includes acceleration measurement and a speed limit warning system with a HUD display option.

🗺️ Navigation

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Strobe Light Tachometer

by Motionics LLC

Adjustable strobe speed (1-130Hz / 60-7800RPM)Quick adjustment buttons (x2, ÷2)Fine-tuning buttons for precise speed

Transform your iPhone into a powerful strobe light and tachometer. Precisely control flashing speeds from 1Hz to 130Hz to measure the RPM of rotating objects by making them appear stationary. Ideal for precise speed measurements in dark environments.

Easy, simple PDF viewing

Browse and search PDF filesPreview and swipe through pagesBookmark pages

Easily view, search, and share PDF documents on your device. Quickly browse files, bookmark pages for later, and zoom in for detailed viewing. This application offers stable and fast performance for all your PDF needs.

💼 Business

KBReader - amazing PDF reader

by VLADYSLAV YERSHOV

View, navigate, and zoom PDFsOrganize documents into foldersSupport for encrypted PDFs

This app allows you to view, organize, and share PDF documents. It supports encrypted files, custom folders, and easy transfer from computers. Export your PDFs to various cloud storage and email services.

Comics, PDF & Custom Sources

EPUB, PDF, TXT, FB2, MOBI, AZW supportCBZ, CBR, CB7 comic format supportCustom source integration

A versatile reader for ebooks, PDFs, and comics. Supports numerous file formats including EPUB, MOBI, and CBZ. Offers a clean reading experience with privacy in mind.

This app pairs with a hardware dongle to enable barcode and RFID scanning on iPhones and iPods. It facilitates data capture by connecting directly to the device via a lightning connector, allowing users to read information through the dongle's trigger buttons or an in-app "Read" button.

Connects via lightning connectorSupports iPhone and iPodUses dongle trigger buttons for scanning

Your Beautiful PDF Library

📚 Books

1dollarscan Reader for iPhone

by 1dollarscan

Optimized scanned eBooksMemos for filesPage bookmarking

Transform scanned book pages into optimized eBooks for your iPhone or iPad. Enjoy reading with features like bookmarks, memos, and brightness adjustments. Access your library anytime, anywhere.

📚 Books

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