# Noise Vibe Spectrum — Evaluate using VC curves

> Evaluate using VC curves (iPhone/iPad app by Shoichi Shimoda.)

- Source: https://appshunter.io/ios/app/noise-vibe-spectrum/id6758724499 (this page in markdown: same URL + `.md`)
- Developer: [Shoichi Shimoda](https://appshunter.io/developer/1874598974)
- Category: Business, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 27 MB
- Languages: American English
- Released: 2026-03-29
- Data updated: 2026-06-05
- User reviews in markdown: https://appshunter.io/ios/app/noise-vibe-spectrum/id6758724499/reviews.md

## What is Noise Vibe Spectrum?

1. Screen Recording 
Please check atattched the file.
2. App Purpose Noise Vibe Spectrum is a utility app designed for measuring and analyzing mechanical vibrations and environmental noise. It solves the problem of needing expensive specialized hardware for basic acoustic and vibration surveys. It provides value to DIY enthusiasts, maintenance engineers, and researchers by allowing them to visualize frequency data (FFT) and 1/3 octave bands using the smartphone's built-in sensors.
3. Instructions for Accessing Features The app does not require account registration or login. All core features are accessible via the two main tabs: "Vibration" and "Noise."
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To test vibration analysis: Tap the "Vibration" tab and press "Start."
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To test noise analysis: Tap the "Noise" tab and press "Start."
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To review the premium flow: Navigate to the settings menu (top-right icon) and select "Upgrade to Premium."
4. External Services The app uses the following external services:
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Google AdMob: To deliver banner advertisements to non-premium users.
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Apple In-App Purchase: To process the one-time payment for the "Premium Upgrade." The app does not use any external authentication or AI services.
5. Regional Differences The app functions consistently across all regions. There are no regional differences in features or content.
6. Regulatory Information This app is a general-purpose measurement tool and does not operate in a highly regulated industry (such as medical or financial services). It is not intended for professional medical diagnosis.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| NoiseVibeSpectrum premium upgrade | $2.99 | one-time |



## Version history (last 1 release)

### 1.1.0 — 2026-03-30

No release notes.

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*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 2026-06-05.*