# Open String Guitar Chords vs Serphonica

The clearest difference is price: Serphonica at Free against Open String Guitar Chords's $12.99. Serphonica also leads on rating (5.0 vs 4.7) and update cadence (every 2 months vs every 7 months). Open String Guitar Chords's advantage is ratings volume (3 vs 1) and iOS requirement (11.0 vs 17.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

Serphonica is free to download; Open String Guitar Chords costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Serphonica holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Open String Guitar Chords ships an update every 7 months, Serphonica every 2 months. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Open String Guitar Chords | Serphonica |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | [4.7 (3 ratings)](https://appshunter.io/ios/app/open-string-guitar-chords/id969215522/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/serphonica/id6759585139/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 34 MB | 5 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fonexsis](https://appshunter.io/developer/419001763) | [Joshua Rideout](https://appshunter.io/developer/1862462443) |

## What reviewers say

### Open String Guitar Chords

[App page](https://appshunter.io/ios/app/open-string-guitar-chords/id969215522)

Explore a vast collection of open string guitar chords with multiple voicings and transposition options. This app provides instant playback, optimal fingerings, and scale degree information for musicians of all levels.

**Highlights:** 596 open string chords, Chord transposition with capo, Optimal fingerings provided, Instant chord playback, 3 guitar sound banks, Scale degree display

**Features:** macOS Compatibility

**In-app purchases:** none


### Serphonica

[App page](https://appshunter.io/ios/app/serphonica/id6759585139)

Develop your musical ear with a comprehensive suite of training exercises and practice tools. Features include interval and chord recognition, scale training, rhythm echo, and sight-reading. Includes a chromatic tuner, metronome, and live fretboard.

**Highlights:** Interval training, Chord recognition, Scale trainer, Rhythm echo, Chromatic tuner, Metronome, Live fretboard

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

**In-app purchases:** none


## Frequently asked questions

### Is Open String Guitar Chords free?

Open String Guitar Chords costs $12.99, with no in-app purchases.

### Is Serphonica free?

Serphonica is free to download, with no in-app purchases.

### Which has better reviews, Open String Guitar Chords or Serphonica?

Serphonica is rated higher. Open String Guitar Chords averages 4.7 out of 5 from 3 ratings, while Serphonica averages 5.0 from 1 ratings.

### Do Open String Guitar Chords or Serphonica have ads?

Neither Open String Guitar Chords nor Serphonica shows ads.

### Which is updated more often, Open String Guitar Chords or Serphonica?

Open String Guitar Chords ships an update every 7 months, and Serphonica every 2 months. Most recently, Open String Guitar Chords was updated on October 9, 2026 and Serphonica on October 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.*