Tremo - Vibration Meter

Tremo turns your phone's accelerometer into a clean, simple vibration meter. It measures shaking around you and shows it as MMI (Modified Mercalli Intensity) — no clutter, just what you need. ◆ What people use it for • Car vibration & ride comfort — compare how your car feels, in numbers • Household & neighbor vibration — turn what you feel into a saved record • Machine & appliance checks — track changes in washer, HVAC or equipment vibration • Earthquake reference — see roughly how strong that shake you just felt was ◆ Key features • Real-time intensity — live waveform with a large MMI reading • Plain-language scale — a one-line description of what the current level feels like • Time chart — vibration trend per second (30 s to 10 min window) • Free measurement history — max/average/chart saved per session, with labels • Vibration alarm — sound and vibration alert above your chosen intensity • Zero & sensitivity calibration — quickly correct sensor differences between devices • Gentle reminders — optional morning/evening measurement nudges ◆ Simple and light • Dark, instrument-style design • No sign-up, no data collection — every record stays on your device • No required permissions (notifications are optional) ◆ About accuracy Readings are for reference only and vary with your device's sensor. Tremo is not a professional instrument and must not be used as an earthquake warning system. For best results, place your phone on a flat surface and calibrate the zero point first. Questions or ideas? We'd love to hear from you: bloodturtle@naver.com