# Guitar Scales vs AudioIQ

The clearest difference is price: Guitar Scales at Free against AudioIQ's $4.99. AudioIQ's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Guitar Scales is free to download; AudioIQ costs $4.99 up front. Guitar Scales sells 2 in-app purchases, starting at $2.99 per month. AudioIQ asks for nothing beyond the download.

## The numbers

| Metric | Guitar Scales | AudioIQ |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.9 (33 ratings)](https://appshunter.io/ios/app/guitar-scales-string-theory/id1591787859/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Freemium | — |
| Size | 19 MB | 275 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Denis Andrasec](https://appshunter.io/developer/667450290) | [Martin Adler](https://appshunter.io/developer/1896354791) |

## What reviewers say

### Guitar Scales

[App page](https://appshunter.io/ios/app/guitar-scales-string-theory/id1591787859)

Visualize musical scales on your instrument's fretboard. Explore over 48 built-in scales, create your own, and customize tunings. Ideal for beginners and experienced musicians to learn theory and practice solos.

**Highlights:** Fretboard scale visualization, Over 48 built-in scales, Custom scale creation, Instrument tuning customization, Left-handed mode, Note playback and sound options

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Yearly Subscription | $17.99 | per year |


### AudioIQ

[App page](https://appshunter.io/ios/app/audioiq/id6801876946)

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

**In-app purchases:** none


## Frequently asked questions

### Is Guitar Scales free?

Guitar Scales is free to download, with in-app purchases available.

### Is AudioIQ free?

AudioIQ costs $4.99, with no in-app purchases.

### Do Guitar Scales or AudioIQ have ads?

Neither Guitar Scales nor AudioIQ shows ads.

---

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