# SPL vs Audio Kit

The clearest difference is rating: Audio Kit at 3.5 against SPL's 3.0. Audio Kit also leads on price ($2.99 vs $8.99) and review sentiment (76% vs 68%). SPL's advantage is in-app purchases (none vs 1). On ratings volume, update cadence, ads and device support there is nothing between them.

SPL costs $8.99 and Audio Kit $2.99 up front. Audio Kit sells 1 one-off in-app purchase. SPL asks for nothing beyond the download.

Audio Kit holds the better App Store score, 3.5 against 3.0. Both are backed by a comparable volume of ratings — 4 and 6 respectively. Written reviews point the same way: 68% of SPL's written reviews are positive against 76% of Audio Kit's.

Both ship on a similar rhythm, roughly every 6 months. Both last shipped on October 2, 2026.

## The numbers

| Metric | SPL | Audio Kit |
| --- | --- | --- |
| Price | $8.99 | **$2.99** |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/spl/id293573990/reviews) | **[3.5 (6 ratings)](https://appshunter.io/ios/app/audio-kit/id376965050/reviews)** |
| Number of ratings | 4 | **6** |
| Positive reviews | 67.6% of reviews | **76.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 29 MB | 2 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Smith](https://appshunter.io/developer/291822462) | [Sinusoid Pty Ltd](https://appshunter.io/developer/364871696) |

## What reviewers say

### SPL

[App page](https://appshunter.io/ios/app/spl/id293573990)

This professional-grade digital sound level meter measures decibels with advanced modes and filters meeting ANSI Type 1 standards. It allows storing, exporting, and calibrating measurements, and can be used with external calibrated microphones for precise results.

**Highlights:** Professional-grade digital sound level meter, ANSI/IEC Type 1 standards compliant filters and modes, Store, recall, and export GPS/time-stamped results, Supports external calibrated microphones, Adjustable calibration for accuracy, Internal mic compensation filter

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Audio Kit

[App page](https://appshunter.io/ios/app/audio-kit/id376965050)

This app provides four essential audio analysis tools: a real-time spectrum analyzer, a waveform scope, an SPL meter, and a signal generator. It helps audio professionals visualize and measure sound characteristics with detailed controls and calibration options.

**Highlights:** Real-time Spectrum Analyzer, Waveform Scope, SPL Meter with A-weighting, Signal Generator (Sine, White, Pink Noise), Sweep Generation (In-App Purchase), Screen Capture

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sweep Generator for Audio Kit | $1.99 | one-time |


## Frequently asked questions

### Is SPL free?

SPL costs $8.99, with no in-app purchases.

### Is Audio Kit free?

Audio Kit costs $2.99, and also offers in-app purchases.

### Which has better reviews, SPL or Audio Kit?

Audio Kit is rated higher. SPL averages 3.0 out of 5 from 4 ratings, while Audio Kit averages 3.5 from 6 ratings.

### Do SPL or Audio Kit have ads?

Neither SPL nor Audio Kit shows ads.

### Which is updated more often, SPL or Audio Kit?

SPL ships an update every 6 months, and Audio Kit every 6 months. Most recently, SPL was updated on October 2, 2026 and Audio Kit on October 2, 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.*