# Guitar Tuner＋ vs OpenString

The clearest difference is in-app purchases: Guitar Tuner＋ at none against OpenString's 1. Guitar Tuner＋ also leads on ratings volume (1.9K vs 1). OpenString's advantage is update cadence (daily vs every 18 months) and rating (5.0 vs 4.6). On price, ads, monetization model and device support there is nothing between them.

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

OpenString holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Guitar Tuner＋ has 1.9K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of Guitar Tuner＋'s written reviews are positive against 100% of OpenString's.

Guitar Tuner＋ ships an update every 18 months, OpenString daily. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Guitar Tuner＋ | OpenString |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (1.9K ratings)](https://appshunter.io/ios/app/guitar-tuner/id1553432239/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/openstring-tuner-and-chords/id6811273833/reviews)** |
| Number of ratings | **1.9K** | 1 |
| Positive reviews | 82.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Daily** |
| Monetization | Free | Free |
| Size | 168 MB | 47 MB |
| Requires iOS | **15** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Livintis W.L.L.](https://appshunter.io/developer/1300276456) | [Techguyver Labs, LLC](https://appshunter.io/developer/6796192098) |

## What reviewers say

### Guitar Tuner＋

[App page](https://appshunter.io/ios/app/guitar-tuner/id1553432239)

This free application offers a comprehensive tuning solution for acoustic and electric guitars, as well as ukuleles. It caters to musicians of all skill levels with various tuning options and advanced features like chromatic tuning and left-handed mode.

**Highlights:** Acoustic & electric guitar tuning, Ukulele tuning, Chromatic tuner, Multiple tuning presets, Left-handed mode, Custom calibration

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent tuner
- 👍 Easy to use
- 👍 Accurate tuning
- 👍 Works for different instruments
- 👍 No ads or paywalls

**What reviewers complain about**

- 🐛 Not working on some devices/platforms
- 🐛 Stopped working after updates

**Reported bugs**

- Unable to detect strings
- Incompatible with newer devices

**Requested features**

- Support for more tuning options (e.g. Drop C, Baritone)
- Add a tuning button


### OpenString

[App page](https://appshunter.io/ios/app/openstring-tuner-and-chords/id6811273833)

This app provides essential tools for guitarists, including a tuner, metronome, chord handbook, and a personal songbook. It offers all features upfront with no subscriptions or in-app purchases, allowing users to manage their own song charts and practice effectively offline.

**Highlights:** Guitar tuner, Metronome with tempo and meter settings, Chord handbook with fingerings and voicings, Personal songbook for lyrics and chords, Key transposition and capo preference, Scale and shape finder

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenString Pro | $9.99 | one-time |


## Frequently asked questions

### Is Guitar Tuner＋ free?

Guitar Tuner＋ is free to download, with no in-app purchases.

### Is OpenString free?

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

### Which has better reviews, Guitar Tuner＋ or OpenString?

OpenString is rated higher. Guitar Tuner＋ averages 4.6 out of 5 from 1.9K ratings, while OpenString averages 5.0 from 1 ratings.

### Do Guitar Tuner＋ or OpenString have ads?

Neither Guitar Tuner＋ nor OpenString shows ads.

### Which is updated more often, Guitar Tuner＋ or OpenString?

Guitar Tuner＋ ships an update every 18 months, and OpenString daily. Most recently, Guitar Tuner＋ was updated on October 27, 2026 and OpenString on October 24, 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.*