# SPLnFFT Noise Meter vs Zotit

The clearest difference is price: Zotit at Free against SPLnFFT Noise Meter's $3.99. Zotit also leads on in-app purchases (none vs 1) and update cadence (every 10 days vs every 2 months). On ads and device support there is nothing between them.

Zotit is free to download; SPLnFFT Noise Meter costs $3.99 up front. SPLnFFT Noise Meter sells 1 one-off in-app purchase. Zotit asks for nothing beyond the download.

SPLnFFT Noise Meter ships an update every 2 months, Zotit every 10 days. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SPLnFFT Noise Meter | Zotit |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.8 (61 ratings)](https://appshunter.io/ios/app/splnfft-noise-meter/id355396114/reviews)** | — |
| Number of ratings | **61** | — |
| Positive reviews | 90.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 25 MB |
| Requires iOS | 15.2 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fabien Lefebvre](https://appshunter.io/developer/338004167) | [TWOBITS TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1661176792) |

## What reviewers say

### SPLnFFT Noise Meter

[App page](https://appshunter.io/ios/app/splnfft-noise-meter/id355396114)

This app provides advanced audio measurement capabilities, including sound level metering, frequency analysis, and signal generation. It offers both simple interfaces for daily use and detailed metrics for professional applications, with features compliant with industry standards.

**Highlights:** Sound level meter (noise meter), Frequency analyzer, Frequency meter, Test signal generator, Dosimeter, Leq, peak, L10, L95 measurements, Real-time FFT analysis

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Export raw data to Dropbox + PRO features | $4.99 | one-time |

**What reviewers like**

- ⭐ Highly accurate sound measurements compared to professional equipment
- 🎯 Professional-grade features at affordable price point
- 📊 Comprehensive FFT and frequency analysis capabilities
- 🎨 Clean, intuitive, and visually appealing interface
- 🔧 Multiple weighting options (A, B, C, ISO-498) and response times

**What reviewers complain about**

- 🎤 Microphone gain stuck on auto with built-in iPhone mic
- 📞 Limited customer support accessibility (Facebook-only contact)
- 🔄 Persistent review request pop-ups despite already reviewing
- 📱 Display text sizing issues on some devices (iPhone 11)
- 🌐 No website or email support outside of Facebook

**Reported bugs**

- Microphone gain slider unresponsive/locked on auto
- Landscape mode gets stuck, preventing setting changes
- Text display cropped on iPhone 11 (showing '10...' instead of '100.1')
- App freezes and requires reboot on some devices
- Review request pop-up appears repeatedly even after review submitted

**Requested features**

- Ability to override automatic microphone gain control
- Recording functionality with audio and dB level overlay
- Landscape mode support with full FFT display
- Extended frequency range (down to 20Hz for 3rd octave analysis)
- Microphone frequency calibration curve adjustment


### Zotit

[App page](https://appshunter.io/ios/app/zotit/id6451311764)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SPLnFFT Noise Meter free?

SPLnFFT Noise Meter costs $3.99, and also offers in-app purchases.

### Is Zotit free?

Zotit is free to download, with no in-app purchases.

### Do SPLnFFT Noise Meter or Zotit have ads?

Neither SPLnFFT Noise Meter nor Zotit shows ads.

### Which is updated more often, SPLnFFT Noise Meter or Zotit?

SPLnFFT Noise Meter ships an update every 2 months, and Zotit every 10 days. Most recently, SPLnFFT Noise Meter was updated on November 6, 2026 and Zotit on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*