TremorGauge vs Sensor Toolkit

TremorGauge is 100% software, using your iPhone's built-in accelerometer — no external hardware required. TremorGauge turns your iPhone into a real-time vibration reference meter for relative equipment and surface checks. Built on the iPhone accelerometer, it estimates vibration intensity in mm/s² with a clean color-coded gauge. KEY FEATURES • Real-time vibration magnitude in mm/s² (millimeters per second squared) • Color-coded gauge: green (still), yellow (light), purple (strong) • Live X / Y / Z axis acceleration values in g • One-tap baseline calibration (subtract ambient noise) • Audible peak alarm with adjustable threshold • Fully offline — no network, no tracking, no ads USE CASES • Test machine and equipment vibration • Troubleshoot car / vehicle vibration issues • Compare floor, desk, or furniture vibration changes • Audiophile speaker / driver resonance test • Relative shake awareness • Physics demonstrations PRO FEATURES (optional subscription) • 30-second rolling history curve with peak markers • 100Hz higher-rate sampling mode (5x faster than free) • Persistent baseline that survives app restart • CSV export of full session (timestamp, X, Y, Z, magnitude) • Custom peak alert threshold LIMITATIONS The iPhone accelerometer is not a laboratory-grade instrument. TremorGauge is designed for relative measurements and general awareness, not for safety, regulatory, or risk-monitoring decisions. For calibrated work, use a dedicated piezoelectric or MEMS accelerometer system. PRIVACY All sensor data is processed locally. No audio, video, or location is collected. No analytics, no ads, no account. SUBSCRIPTION INFO • Payment will be charged to your Apple ID account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. • Your account will be charged for renewal within 24 hours prior to the end of the current period. • You can manage and cancel your subscriptions by going to App Store → Account → Subscriptions. Privacy Policy: https://frexx.top/tremorgauge/privacy.html Terms of Use: https://frexx.top/tremorgauge/terms.html SUPPORT jie.xiang.jm@gmail.com

Sensor Toolkit turns your iPhone into a clean, practical set of everyday measurement tools. Use it when you need a level, compass, vibration meter, magnetometer, heading reader, sound meter, ruler, protractor, timer, or metronome without switching between separate apps. Built for quick checks, field work, DIY tasks, practice rooms, and daily utility, Sensor Toolkit keeps each tool focused on the measurement in front of you. Key features: • 10 tools in one app Level, Compass, Vibration, Magnetometer, Heading, Sound Meter, Ruler, Protractor, Timer, and Metronome. • Real-time sensor readings Clear visual feedback helps you read tilt, direction, sound level, vibration, magnetic field strength, angles, time, and tempo at a glance. • No ads while measuring Measurement screens stay clean, focused, and distraction-free. • Sound and vibration logs View live measurement changes over time and save chart images when you need a record. • Practical instrument-style design Dark, high-contrast screens make readings easy to check quickly. • Privacy-conscious permissions Permissions are requested only when a tool needs them. Microphone audio is used for sound level measurement and is not saved by the app. Sensor Toolkit is designed for practical reference measurements. Results depend on your device sensors, calibration, and environment, so it is not a replacement for certified professional measuring equipment.