# CelloTuningWatch vs Guitar Scales

The clearest difference is price: Guitar Scales at Free against CelloTuningWatch's $0.99. Guitar Scales also leads on update cadence (every 2 months vs every 38 months). CelloTuningWatch's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 17.6). On ads and device support there is nothing between them.

Guitar Scales is free to download; CelloTuningWatch costs $0.99 up front. Guitar Scales sells 2 in-app purchases, starting at $2.99 per month. CelloTuningWatch asks for nothing beyond the download.

CelloTuningWatch ships an update every 38 months, Guitar Scales every 2 months. The most recent releases landed on October 8, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | CelloTuningWatch | Guitar Scales |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 2 months** |
| Monetization | — | Freemium |
| Size | 3 MB | 17 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [satoshi goto](https://appshunter.io/developer/1452605561) | [Denis Andrasec](https://appshunter.io/developer/667450290) |

## What reviewers say

### CelloTuningWatch

[App page](https://appshunter.io/ios/app/cellotuningwatch/id1497669815)

**In-app purchases:** none


### Guitar Scales

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

Visualize scales on your instrument's fretboard for guitar, bass, and ukulele. Explore over 48 built-in scales, create your own, and customize tunings. Practice solos or simply play along with interactive note playback.

**Highlights:** Visualize scales on fretboard, Supports guitar, bass, ukulele, Over 48 built-in scales, Create custom scales, Customizable instrument tunings, Interactive note playback, Left-handed mode

**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 |


## Frequently asked questions

### Is CelloTuningWatch free?

CelloTuningWatch costs $0.99, with no in-app purchases.

### Is Guitar Scales free?

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

### Do CelloTuningWatch or Guitar Scales have ads?

Neither CelloTuningWatch nor Guitar Scales shows ads.

### Which is updated more often, CelloTuningWatch or Guitar Scales?

CelloTuningWatch ships an update every 38 months, and Guitar Scales every 2 months. Most recently, CelloTuningWatch was updated on October 8, 2026 and Guitar Scales on October 23, 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.*