# SPLnFFT Noise Meter vs Receipt to CSV

The clearest difference is price: Receipt to CSV at Free against SPLnFFT Noise Meter's $3.99. Receipt to CSV also leads on update cadence (every 5 days vs every 2 months). SPLnFFT Noise Meter's advantage is chart position (#95 vs unranked) and iOS requirement (15.2 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Receipt to CSV is free to download; SPLnFFT Noise Meter costs $3.99 up front. SPLnFFT Noise Meter sells 1 one-off in-app purchase and Receipt to CSV sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

SPLnFFT Noise Meter ships an update every 2 months, Receipt to CSV every 5 days. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SPLnFFT Noise Meter | Receipt to CSV |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#95** | — |
| Size | 4 MB | 9 MB |
| Requires iOS | **15.2** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fabien Lefebvre](https://appshunter.io/developer/338004167) | [Muhammad Hunble Dhillon](https://appshunter.io/developer/1874626591) |

## What reviewers say

### SPLnFFT Noise Meter

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

**Currently charting:** #95 Top Paid · Utilities (US App Store)

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


### Receipt to CSV

[App page](https://appshunter.io/ios/app/receipt-to-csv/id6758729406)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly CSV Export | $3.99 | per 7 days |
| Lifetime Purchase | $14.99 | one-time |


## Frequently asked questions

### Is SPLnFFT Noise Meter free?

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

### Is Receipt to CSV free?

Receipt to CSV is free to download, with in-app purchases available.

### Do SPLnFFT Noise Meter or Receipt to CSV have ads?

Neither SPLnFFT Noise Meter nor Receipt to CSV shows ads.

### Which is updated more often, SPLnFFT Noise Meter or Receipt to CSV?

SPLnFFT Noise Meter ships an update every 2 months, and Receipt to CSV every 5 days. Most recently, SPLnFFT Noise Meter was updated on November 1, 2026 and Receipt to CSV on October 28, 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.*