# 12 vs GtrLib Chords

The clearest difference is review sentiment: GtrLib Chords at 77% against 12's 27%. GtrLib Chords also leads on price (Free vs $0.99) and rating (4.7 vs 3.5). 12's advantage is ads (none vs shown) and iOS requirement (5.1.1 vs 17.0). On in-app purchases and device support there is nothing between them.

GtrLib Chords is free to download; 12 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GtrLib Chords holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: GtrLib Chords has 1.4K ratings behind it against 44, so its average is the more settled of the two. Written reviews point the same way: 27% of 12's written reviews are positive against 77% of GtrLib Chords's.

12 ships an update every 3 months, GtrLib Chords fortnightly. Both last shipped on November 6, 2026.

## The numbers

| Metric | 12 | GtrLib Chords |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.5 (44 ratings)](https://appshunter.io/ios/app/12-string-guitar-tuner-simple/id330647891/reviews) | **[4.7 (1.4K ratings)](https://appshunter.io/ios/app/gtrlib-chords/id1394407011/reviews)** |
| Number of ratings | 44 | **1.4K** |
| Positive reviews | 27.1% of reviews | **77.3% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 27 MB | 51 MB |
| Requires iOS | **5.1.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Nikitenko](https://appshunter.io/developer/320174771) | [Bijoy Thangaraj](https://appshunter.io/developer/453056920) |

## What reviewers say

### 12

[App page](https://appshunter.io/ios/app/12-string-guitar-tuner-simple/id330647891)

This application provides a straightforward tool for tuning 12-string guitars to the standard eEaAdDgGBBEE tuning. It guides users by playing the correct notes for each string, allowing them to adjust their tuning pegs accordingly. The app also offers functionality for tuning standard 6-string guitars.

**Highlights:** 12-string guitar tuning, Standard eEaAdDgGBBEE tuning, Plays reference notes for each string, Supports 6-string guitar tuning, Easy-to-use interface

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to follow
- 👍 Quick and easy tuning
- 👍 User-friendly mode
- 👍 On target with tuning
- 👍 Great for 12-string guitars

**What reviewers complain about**

- 🐛 Crushing constantly
- 🐛 Does not work on iPad Pro
- 🐛 Useless product
- 🐛 No microphone
- 🐛 Not a tuner, just plays tone

**Reported bugs**

- Crushing constantly
- Does not work on iPad Pro
- No microphone functionality
- App crashes on opening
- App quits when opened

**Requested features**

- Use the microphone for tuning
- Add visual confirmation (e.g., green indicator)
- Allow tuning down strings
- Change MHz up and down


### GtrLib Chords

[App page](https://appshunter.io/ios/app/gtrlib-chords/id1394407011)

This app is a comprehensive guitar chord library for players of all skill levels. It offers thousands of chords with multiple voicings, fingerings, and audio demonstrations. Easily search, customize, and export chords for practice, learning, or music production.

**Highlights:** Extensive chord library, Multiple voicings and inversions, Audio demonstrations, Suggested fingerings, Quick search functionality, Export as PNG or MIDI, Left-handed mode

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

**In-app purchases:** none


## Frequently asked questions

### Is 12 free?

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

### Is GtrLib Chords free?

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

### Which has better reviews, 12 or GtrLib Chords?

GtrLib Chords is rated higher. 12 averages 3.5 out of 5 from 44 ratings, while GtrLib Chords averages 4.7 from 1.4K ratings.

### Do 12 or GtrLib Chords have ads?

GtrLib Chords shows ads; 12 does not.

### Which is updated more often, 12 or GtrLib Chords?

12 ships an update every 3 months, and GtrLib Chords fortnightly. Most recently, 12 was updated on November 6, 2026 and GtrLib Chords on November 6, 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.*