# Scales Lexicon vs Oud Pro

The clearest difference is rating: Scales Lexicon at 4.8 against Oud Pro's 3.0. Scales Lexicon also leads on review sentiment (86% vs 48%) and in-app purchases (none vs 1). Oud Pro's advantage is price ($0.99 vs $2.99) and iOS requirement (17.6 vs 26.5). On ratings volume, update cadence, ads and monetization model there is nothing between them.

Scales Lexicon costs $2.99 and Oud Pro $0.99 up front. Oud Pro sells 1 one-off in-app purchase. Scales Lexicon asks for nothing beyond the download.

Scales Lexicon holds the better App Store score, 4.8 against 3.0. Both are backed by a comparable volume of ratings — 6 and 17 respectively. Written reviews point the same way: 86% of Scales Lexicon's written reviews are positive against 48% of Oud Pro's.

Scales Lexicon ships an update every 19 months, Oud Pro every 33 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Scales Lexicon | Oud Pro |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/scales-lexicon/id428590294/reviews)** | [3.0 (17 ratings)](https://appshunter.io/ios/app/oud-pro/id452612201/reviews) |
| Number of ratings | 6 | **17** |
| Positive reviews | **85.7% of reviews** | 47.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 19 months** | Every 33 months |
| Monetization | Paid | Paid |
| Size | 40 MB | 87 MB |
| Requires iOS | 26.5 | **17.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Q. Kelly](https://appshunter.io/developer/310068987) | [volkan gumuslu](https://appshunter.io/developer/429893721) |

## What reviewers say

### Scales Lexicon

[App page](https://appshunter.io/ios/app/scales-lexicon/id428590294)

This app provides a comprehensive library of musical scales with detailed notation and playback. It allows for transposition across various instruments and clefs, offering customizable rhythmic patterns and playback options. Users can generate printable PDF scores for practice and sharing.

**Highlights:** Over 100 musical scales, Interactive notation and playback, Transposition for multiple instruments, Customizable rhythmic patterns, PDF score generation, Multiple octaves and playback modes

**In-app purchases:** none


### Oud Pro

[App page](https://appshunter.io/ios/app/oud-pro/id452612201)

Experience the authentic sound of the Turkish and Arabic oud on your iPhone. This app offers a realistic playing experience with studio-recorded sound effects, allowing you to play traditional Turkish and Arabic maqams. Enjoy an easy-to-use and high-quality virtual instrument.

**Highlights:** Realistic oud playing experience, Studio-recorded sound effects, Play Turkish and Arabic maqams, Easy to use interface, High-quality design

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 lissen credits | $0.99 | one-time |


## Frequently asked questions

### Is Scales Lexicon free?

Scales Lexicon costs $2.99, with no in-app purchases.

### Is Oud Pro free?

Oud Pro costs $0.99, and also offers in-app purchases.

### Which has better reviews, Scales Lexicon or Oud Pro?

Scales Lexicon is rated higher. Scales Lexicon averages 4.8 out of 5 from 6 ratings, while Oud Pro averages 3.0 from 17 ratings.

### Do Scales Lexicon or Oud Pro have ads?

Neither Scales Lexicon nor Oud Pro shows ads.

### Which is updated more often, Scales Lexicon or Oud Pro?

Scales Lexicon ships an update every 19 months, and Oud Pro every 33 months. Most recently, Scales Lexicon was updated on November 1, 2026 and Oud Pro on November 1, 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.*