# SPL Graph vs Arranger Pro

The clearest difference is price: Arranger Pro at Free against SPL Graph's $9.99. Arranger Pro also leads on rating (4.7 vs 3.7) and update cadence (every 3 months vs every 6 months). SPL Graph's advantage is ads (none vs shown) and iOS requirement (15.0 vs 17.2). On ratings volume, in-app purchases and device support there is nothing between them.

Arranger Pro is free to download; SPL Graph costs $9.99 up front. SPL Graph sells 5 in-app purchases, starting at $19.99 per month and Arranger Pro sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Arranger Pro holds the better App Store score, 4.7 against 3.7. Both are backed by a comparable volume of ratings — 3 and 6 respectively.

SPL Graph ships an update every 6 months, Arranger Pro every 3 months. The most recent releases landed on November 13, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SPL Graph | Arranger Pro |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/spl-graph/id307451201/reviews) | **[4.7 (6 ratings)](https://appshunter.io/ios/app/arranger-pro/id6766657889/reviews)** |
| Number of ratings | 3 | **6** |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 30 MB | 100 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Smith](https://appshunter.io/developer/291822462) | [Alper Kahriman](https://appshunter.io/developer/1054578352) |

## What reviewers say

### SPL Graph

[App page](https://appshunter.io/ios/app/spl-graph/id307451201)

This app analyzes sound pressure levels and environmental noise in real-time. It logs audio, captures video, and performs frequency analysis, with options for advanced octave band analysis and professional microphone integration. Receive email notifications for exceeding noise limits and auto-save data for continuous monitoring.

**Highlights:** Real-time sound pressure level analysis, Audio recording and playback, Optional video capture, Octave and 1/3 octave band analysis, 3D frequency plot, Ln SPL value calculation, Email notifications for noise limits

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remote Noise Monitoring | $19.99 | per month |
| Remote Noise Mid Level | $79.99 | per month |
| Remote Noise Large | $149.99 | per month |
| Octave Band SPL Logging | $9.99 | one-time |
| Video Capture Option | $19.99 | one-time |


### Arranger Pro

[App page](https://appshunter.io/ios/app/arranger-pro/id6766657889)

Transform your mobile device into a professional arranger keyboard. Play melodies and chords while a virtual band provides real-time accompaniment, drums, and bass. Explore a vast library of sounds and musical styles for endless creative possibilities.

**Highlights:** Virtual backing band accompaniment, Extensive sound library, Diverse musical styles, Split keyboard functionality, Pitch bend and modulation wheels, Performance recording and sharing, MIDI keyboard support

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arranger Pro Monthly | $4.99 | per month |
| Arranger Pro Yearly | $24.99 | per year |
| Arranger Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is SPL Graph free?

SPL Graph costs $9.99, and also offers in-app purchases.

### Is Arranger Pro free?

Arranger Pro is free to download, with in-app purchases available.

### Which has better reviews, SPL Graph or Arranger Pro?

Arranger Pro is rated higher. SPL Graph averages 3.7 out of 5 from 3 ratings, while Arranger Pro averages 4.7 from 6 ratings.

### Do SPL Graph or Arranger Pro have ads?

Arranger Pro shows ads; SPL Graph does not.

### Which is updated more often, SPL Graph or Arranger Pro?

SPL Graph ships an update every 6 months, and Arranger Pro every 3 months. Most recently, SPL Graph was updated on November 13, 2026 and Arranger Pro on November 5, 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.*