# Guitar Tuner - Ukulele & Bass — DoubleTune: Tune Violin & More

> Advanced string instrument tuner with learning games and safety features. (iPhone/iPad app by Gismart Limited.)

- Source: https://appshunter.io/ios/app/guitar-tuner-ukulele-and-bass/id662890455 (this page in markdown: same URL + `.md`)
- Developer: [Gismart Limited](https://appshunter.io/developer/1550086700)
- Category: Music, Utilities
- Price: Free with in-app purchases
- Rating: 4.40/5 from 7,464 App Store ratings · 448 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 261 MB
- Languages: American English, French (France), Italian, Japanese, Norwegian Bokmål, European Portuguese, Swedish, European Spanish, Thai, Chinese (Traditional, Taiwan) and 1 more
- Released: 2013-07-07
- Data updated: 2026-08-25
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/guitar-tuner-ukulele-and-bass/id662890455/reviews.md

## What is Guitar Tuner?

DoubleTune is an advanced tuning app created by professional musicians. It’s suitable for tuning a range of string musical instruments, learning new chords and refreshing your memory of already-learned ones. Competitive educational games are equally useful for beginners and mastered guitar players. One way or another, DoubleTune is a must-have app for any musician.

Made by experienced guitarists, it is simple, fast, intuitive and accurate. It’s perfect for tuning acoustic, electric and bass guitars, along with ukulele, banjo, violin and cello.

- Choose between a range of tuning presets and modes:
- Tune Guard™;
- Standard and Popular tunings (6 and 12 strings);
- Drop and Double Drop;
- Open, Modal and Lower;
- Ukulele tunings;
- Bass guitar tunings; 
- Chromatic tuner;
- Auto and Manual modes; 

Tune Guard™ is a smart feature that helps you tune safely. It warns you with both visual red signal and string highlighting when this string is too tight and is about to break. The mode is designed to help beginners and inexperienced musicians save their strings, time and money.

You can easily tune:
- Electric and Acoustic guitars;
- Western and Classic guitars;
- Bass 4 and 5 strings;
- Ukulele;
- Violin;
- Cello;
- Mandolin;
- Viola;
- Balalaika;
- Banjo;
- And any other string instruments.

Get the most out of DoubleTune games:
- Learn chords! Hone your skills and get familiar with many of common chords. These entertaining games focus on chords and chord diagrams. You can easily transfer this experience to real guitar playing!
- Ear training. Learn basics of guitar music theory in a fun way. Master your musical hearing and chord recognition ability with the help of quizzes.
- Stay competitive and try to get the best score in less time!

Great for professional and beginner guitarists! Enjoy tuning your instruments at the astoundingly high level. 

The app contains the following subscription options:
- Weekly with a 3-day free trial at $3.99;
- Yearly with a 7-day free trial at $21.99;
- Weekly with a 30-day free trial at $3.99;
- Music One weekly subscription with a 3-day free trial for 9.99/weekly;
- Music One yearly with a 7-day free trial at $59.99;
- Monthly at $14.99. 
- Payment will be charged to iTunes Account at confirmation of purchase.
- Subscription automatically renews unless auto-renew is turned off at least 24-hours prior to the end of the current period.
- The account is charged for renewal within 24-hours before the end of the current period.
- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase.
- The cost of renewal is equal to the value that “Apple’s App Store Matrix” determines as the equivalent of the subscription price in $USD.
- Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication.
- You can subscribe for unlimited access to our PRO services: 
* Tune Guard™ for safe tuning; 
* all instruments;
* all games.

Privacy Policy: https://gismart.com/privacy-policy/
Terms of Service: https://gismart.com/terms-of-service/

*Price are equal to the value that "Apple's App Store Matrix" determines is the equivalent of the subscription price in $USD.

* Tune Guard™ feature does not guarantee 100% safely tuning. Gismart Ltd. takes no responsibility for causing any damage to your strings.

## Key features

- Precise instrument tuning
- Tune Guard™ safety feature
- Chord learning games
- Ear training quizzes
- Multiple tuning presets
- Supports various string instruments

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Music One | $9.99 | per 7 days |
| Try an accurate Tuner | $3.99 | per 7 days |
| Try accurate Tuner | $3.99 | per 7 days |
| Try accurate Tuner | $21.99 | per year |
| Annual Premium Subscription | $59.99 | per year |
| Monthly Premium Subscription | $14.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Ukulele | $2.99 | one-time |
| Guitar | $2.99 | one-time |
| All In One | $5.99 | one-time |
| Try accurate Tuner | $49.99 | one-time |


## What do users think of Guitar Tuner?

Overall sentiment: negative

**Pros**

- 🚀 Easy to use
- ⭐ Accurate tuning
- 🎸 Works well for guitars and ukuleles
- 💻 Convenient to have on phone

**Cons**

- 💰 Expensive subscription model
- 🔒 Forces subscription to use basic features
- 🤔 Confusing free trial/subscription process
- 🐛 Inaccurate tuning in some cases
- 🔁 Recurring charges even after unsubscribing

**Commonly reported bugs**

- Strings breaking during tuning
- App crashing or not opening
- Incorrect string detection

**Most requested features**

- Support for more instrument types (e.g. violin)
- Option to purchase app outright instead of subscription
- Clearer free vs. paid feature differentiation

## Recent user reviews (10 of 448)

All indexed reviews: https://appshunter.io/ios/app/guitar-tuner-ukulele-and-bass/id662890455/reviews.md

### 5/5 — Penny

*2026-07-06, version 4.34*

Tank lol due

### 1/5 — I used to be able to tune my uku for free

*2026-02-15, version 4.34*

This app is no longer great. It used to offer you the basic standard tuning for guitar and ukulele for free while giving you the option to purchase different alternate tunings. I will be deleting this app in favor of a less predatory one.

### 1/5 — 谨慎下载 和使用

*2025-08-27*

垃圾软件 自动续费开的莫名其妙 没有明显提示 下载后点开就自动开了 并且我随后就删掉此软件 还一直扣费 扣了500多 根据《网络交易管理法》规定，自动续费应当在消费者接受服务的前五日以显著得方式提醒消费者，消费者自行选择消费与否，而你们并没有通过短信或者打电话等方式提醒我，所以你侵犯看了消费者的知情权和选择权，大家一定要谨慎下载 另外请给我全额退款

**Developer response:** 您好！请注意，当您开始订阅我们的应用（无论是高级版还是免费试用版）时，它将自动续订，直到您取消为止——我们会在购买屏幕上提醒您这一点。删除应用不会自动取消您的订阅——它会关联到您的 Apple ID 帐户。如果您需要有关订阅或其他方面的进一步帮助，请随时通过 support@gismart.com 直接联系我们。我们期待很快与您联系！

### 4/5 — Really good tuner app for my classical guitar but i am a little  disappointed  since i put my phone

*2025-06-28, version 4.34*

Really good tuner app for my classical guitar but i am a little  disappointed  since i put my phone near my classical guitar so my phone can pick up the sound but the app won’t pick up the sound I enabled the microphone on my phone but other than that its a pretty good and reliable tuner app it got me to tune my classical guitar in just 3 minutes

### 1/5 — Not free

*2024-12-29, version 4.34*

First review says it’s great having been using for years&it’s totally free. Nothing about this app is free. Have no idea why the apple App Store is complete shyte for apps like this but here we are.

### 1/5 — Why would anyone pay so much per week for a Guitar Tuner?

*2024-10-31, version 4.34*

I must have accidentally agreed to a free trial to tune a guitar for a minute. Two months later I look at my purchase history and I’ve been charged $15 CAD/week for an app. I have not used since.  Not that I would ever pay this much. You guys are crazy.  $15 per year and you might have me… $15 per week, I have no respect for you.

### 3/5 — Broken strings

*2024-09-04, version 4.34*

I was just following as the app told me to tune my acoustic guitar and one of the strings broke when they were in great condition really annoyed about that

### 1/5 — STOLE MY MONEY

*2024-08-14, version 4.33*

The company supplying this app is currently aware of a phone theft resulting in non consenting withdrawals from the cardholders account and they are refusing to refund the card holder. They have been given a full explanation of the theft, sensible “how would I cancel a subscription I don’t know about for an app I don’t have downloaded on my replacement phone” responses and they begun by offering insulting amounts (5 - 40$ of a almost 400$ total stolen) to shut me up. I have been fighting them for weeks to still have the response of technical difficulties to justify them keeping a remaining 217.75 owed in refund. You should not have to pull teeth to be treated justly in the circumstances presented to this company. Little payments get away from anyone not anal about their bank statements let alone have the time to go and nit pick through them. After my phone theft I had lots of random charges and subscriptions - in which I cancelled and blocked. One was missed, and these people are happy to profit off of a shitty situation for me making them no better then the thief that stole my phone in the airport. I would be wise to not subscribe to any of their services offered - they won’t refund you adequately, the charges are insane and worst case like me, it will be money gone for no service provided. No humanity here. Go somewhere else. THEY ARE CONSENTING TO PROFITING OFF OF THEFT, and therefore thieves themself.

### 5/5 — 失败

*2024-04-25*

什么破调音器用这个给我吉他弦
干坏了

**Developer response:** 您好，感谢您与我们联系！ 我们很乐意对此进行更深入的研究，因此您可以通过 support@gismart.com 与我们联系吗？ 等待！

### 3/5 — Great but

*2024-02-27, version 4.33*

I was using this app to tune my guitar because I just got new guitar strings and one of the strings snapped mid tuning I don’t know if I used it wrong ( I was on the right string by the way ) or it’s not my fault, but great app and really easy to use overall

## Frequently asked questions about Guitar Tuner

### What instruments can I tune with this app?

This app is designed to tune a wide range of string instruments. This includes electric and acoustic guitars, bass guitars (4 and 5 strings), ukuleles, violins, cellos, mandolins, violas, balalaikas, banjos, and many other stringed instruments.

### How does the Tune Guard™ feature work?

Tune Guard™ is a smart safety feature that helps prevent string breakage. It provides visual cues, such as a red signal and highlighted strings, when a string is too tight. This is particularly useful for beginners and inexperienced musicians to protect their instruments and save time and money.

### What are the learning features in the app?

The app includes engaging educational games to help users learn new chords and refresh their memory of existing ones. It also offers ear training exercises to teach the basics of music theory in a fun way, helping users master their musical hearing and chord recognition abilities.

### What are the subscription options and pricing?

The app offers various subscription plans, including weekly and yearly options with free trial periods. Prices vary, with options like $3.99 weekly, $21.99 yearly, and premium 'Music One' subscriptions at $9.99 weekly or $59.99 yearly. Monthly options are also available at $14.99.

### Is this app compatible with my device?

While specific device compatibility is not detailed, the app is available for mobile devices and payment is processed through iTunes Account. Subscriptions can be managed through the user's Account Settings on their device.

## Version history (last 5 releases)

### 4.34 — 2024-08-15

We hope you’re enjoying the app! Please, keep it regularly updated to always have our greatest features and latest improvements.
- Performance and stability improvements
- Bugs fixes

### 4.33 — 2022-12-13

We’ve made some app stability improvements and fixed the bugs reported by our users. Keep the app regularly updated to always have our greatest features!

### 4.32 — 2022-10-31

We hope you’re enjoying the app! Please, keep it regularly updated to always have our greatest features and latest improvements.
- Performance and stability improvements

### 4.31 — 2022-09-23

We’ve made some app stability improvements and fixed the bugs reported by our users. Keep the app regularly updated to always have our greatest features!

### 4.30 — 2022-06-14

We hope you’re enjoying the app! Please, keep it regularly updated to always have our greatest features and latest improvements.
- Performance and stability improvements

## Apps similar to Guitar Tuner

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## More apps by Gismart Limited

- [Guitar - Chords, Tabs & Games](https://appshunter.io/ios/app/guitar-chords-tabs-and-games/id426912243)
- [WeDrum: Drum Games, Real Drums](https://appshunter.io/ios/app/wedrum-drum-games-real-drums/id474286241)
- [Metronome - Tap Tempo & Rhythm](https://appshunter.io/ios/app/metronome-tap-tempo-and-rhythm/id559798172)
- [Piano Keyboard & Music Tiles](https://appshunter.io/ios/app/piano-keyboard-and-music-tiles/id694133630)
- [Ukulele - Play Chords on Uke](https://appshunter.io/ios/app/ukulele-play-chords-on-uke/id694137669)

All apps by Gismart Limited: https://appshunter.io/developer/1550086700

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*