# Guitar Scales Power vs Guitar Tuner EM

The clearest difference is review sentiment: Guitar Scales Power at 91% against Guitar Tuner EM's 40%. Guitar Scales Power also leads on rating (4.6 vs 3.5) and in-app purchases (none vs 1). Guitar Tuner EM's advantage is iOS requirement (12.0 vs 14.5). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Guitar Tuner EM sells 1 one-off in-app purchase. Guitar Scales Power asks for nothing beyond the download.

Guitar Scales Power holds the better App Store score, 4.6 against 3.5. That said, the two scores are not equally well evidenced: Guitar Scales Power has 77 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 91% of Guitar Scales Power's written reviews are positive against 40% of Guitar Tuner EM's.

Guitar Scales Power ships an update every 4 months, Guitar Tuner EM every 3 months. Both last shipped on September 8, 2026.

## The numbers

| Metric | Guitar Scales Power | Guitar Tuner EM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (77 ratings)](https://appshunter.io/ios/app/guitar-scales-power/id589291541/reviews)** | [3.5 (8 ratings)](https://appshunter.io/ios/app/guitar-tuner-em-1/id1130498431/reviews) |
| Number of ratings | **77** | 8 |
| Positive reviews | **91.0% of reviews** | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 33 MB | 16 MB |
| Requires iOS | 14.5 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gunter](https://appshunter.io/developer/589291544) | [myrApps](https://appshunter.io/developer/954211898) |

## What reviewers say

### Guitar Scales Power

[App page](https://appshunter.io/ios/app/guitar-scales-power/id589291541)

Master guitar scales and modes with this comprehensive app. Features a built-in tuner, interactive scale visualizations, and practice loops to improve finger dexterity and improvisation skills. Supports various tunings and the CAGED system for fretboard mastery.

**Highlights:** Learn common guitar scales and modes, Accurate chromatic tuner with multiple tunings, Interactive scale position playback and loops, CAGED system chord shape display, Adjustable playback speed and count-in, Note highlighting for learning

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Great for learning scales
- 👍 Comprehensive content
- 👍 Free to use
- 👍 Useful reference tool

**What reviewers complain about**

- 🐛 Bugs and glitches
- 🐛 Confusing interface for some
- 🐛 Adverts in free version
- 🐛 Fretboard orientation issues
- 🐛 Some features hard to find

**Reported bugs**

- App crashes frequently
- App stuck in landscape mode
- Cannot move view up and down fretboard
- Ad bar covers fretboard
- Fretboard in wrong direction (vertical)

**Requested features**

- Add bass and other stringed instruments
- Include a print function
- Add more drop tunings
- Add a metronome with play-along function
- Add Arpeggios and natural minor scale


### Guitar Tuner EM

[App page](https://appshunter.io/ios/app/guitar-tuner-em-1/id1130498431)

This free app helps you tune your guitar perfectly with automatic string detection and various note naming schemes. It offers over 30 alternate tunings and provides chord fingerings for quick reference, making it ideal for both beginners and experienced players.

**Highlights:** Automatic string detection, Multiple note naming schemes, Adjustable tuning parameters, 30+ alternate guitar tunings, Chord fingerings and string tones, Hear tuning sounds

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tuner Premium Upgrade | $3.99 | one-time |


## Frequently asked questions

### Is Guitar Scales Power free?

Guitar Scales Power is free to download, with no in-app purchases.

### Is Guitar Tuner EM free?

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

### Which has better reviews, Guitar Scales Power or Guitar Tuner EM?

Guitar Scales Power is rated higher. Guitar Scales Power averages 4.6 out of 5 from 77 ratings, while Guitar Tuner EM averages 3.5 from 8 ratings.

### Do Guitar Scales Power or Guitar Tuner EM have ads?

Both Guitar Scales Power and Guitar Tuner EM show ads.

### Which is updated more often, Guitar Scales Power or Guitar Tuner EM?

Guitar Scales Power ships an update every 4 months, and Guitar Tuner EM every 3 months. Most recently, Guitar Scales Power was updated on September 8, 2026 and Guitar Tuner EM on September 8, 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.*