# TremorGauge - Vibration — Seismograph · Shake Meter

> Seismograph · Shake Meter (iPhone/iPad app by 杰 向.)

- Source: https://appshunter.io/ios/app/tremorgauge-vibration/id6762075129 (this page in markdown: same URL + `.md`)
- Developer: [杰 向](https://appshunter.io/developer/1860305678)
- Category: Utilities, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 1 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-04-17
- Data updated: 2026-07-22
- User reviews in markdown: https://appshunter.io/ios/app/tremorgauge-vibration/id6762075129/reviews.md

## What is TremorGauge?

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| TremorGauge Pro Yearly | $19.90 | per year |
| TremorGauge Pro Weekly | $1.59 | per 7 days |



## Version history (last 5 releases)

### 1.0.5 — 2026-07-09

TremorGauge 1.0.5
• Adds a clearer session report for recent vibration history, including stability, quiet-floor, and alert-gap details
• Makes calibration, peak alerts, and history review feel steadier during everyday vibration checks
• Clarifies the measurement notes so estimates, sampling rate, and non-safety use are easier to understand

### 1.0.4 — 2026-06-04

This update makes the live gauge easier to read at a glance: unsupported motion states are now shown clearly, and the main screen includes a short reminder about intended use. History, threshold alerts, and export flows also received small polish touches.

### 1.0.3 — 2026-05-13

Improves review readiness, localization, privacy details, and stability based on the latest validation pass.

### 1.0.2 — 2026-05-07

Bug fixes and subscription review compliance improvements.

### 1.0.1 — 2026-04-18

Added Pro subscription with unlimited measurements, full history, and CSV export.

## More apps by 杰 向

- [故事录](https://appshunter.io/ios/app/id6756418187)
- [婚礼通](https://appshunter.io/ios/app/id6759790993)
- [零花钱 - PocketTask](https://appshunter.io/ios/app/pockettask/id6760774816)
- [新家管家](https://appshunter.io/ios/app/id6760828367)
- [租房交接](https://appshunter.io/ios/app/id6760984477)
- [财产分割助手](https://appshunter.io/ios/app/id6760984479)

All apps by 杰 向: https://appshunter.io/developer/1860305678

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-22.*