# Sky Tuner: Instrument Tuner — Guitar,Bass,Guzheng,Erhu,Piano

> Professional instrument tuner with real-time pitch feedback and instrument presets. (iPhone/iPad app by 艳琴 左.)

- Source: https://appshunter.io/ios/app/sky-tuner-instrument-tuner/id6774428242 (this page in markdown: same URL + `.md`)
- Developer: [艳琴 左](https://appshunter.io/developer/1751817381)
- Category: Music, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 18 MB
- Languages: Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan), American English, Korean
- Released: 2026-06-20
- Data updated: 2026-08-25
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sky-tuner-instrument-tuner/id6774428242/reviews.md

## What is Sky Tuner?

SkyTuner is a professional tuning app for musicians and learners. It listens to your instrument through the microphone and shows pitch deviation on an intuitive semicircle gauge—with cent-level readouts so you know exactly when you're in tune.

Core Experience • Real-time precision tuning with cent-level feedback
• In-tune alerts: sound, haptic, and gauge highlight when you stay within ±5 cents
• Reference tones: tap a string to hear the target pitch
• Adjustable A4 reference: 400–480 Hz for different ensembles and styles
• English & Simplified Chinese UI

Supported Instruments Guitar, Ukulele, Bass | Violin, Viola, Cello | Piano | Standard Pitch A | Guzheng, Guqin, Pipa, Erhu, Xiaoruan, Zhongruan, Daruan, Kalimba | Twelve-Tone Equal Temperament (chromatic)

Popular tuning presets (standard, D tuning, and more). Auto string detection or manual selection.

More Features • Apple Watch: standalone chromatic tuner on your wrist
• Home Screen widget: open your last used instrument in one tap
• Noisy environment adaptation for more stable readings in practice rooms
• Optional sound alerts and haptic feedback

SkyTuner Pro (Optional) The free version includes multiple instruments (up to 3 unlocked). Pro unlocks piano tuning, 12-tone equal temperament, unlimited instruments, and removes ads. Choose Yearly (1 year, no auto-renew) or Lifetime (one-time purchase).

Privacy
Microphone access is used only for real-time pitch detection. Audio is not recorded or uploaded.

Tune every note with confidence—start with SkyTuner.

EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Terms of Use / Privacy Policy: http://app.music-glossary.com/skytuner-privacy.html#privacy

Questions or feedback? We'd love to hear from you at chuangke4589230@163.com

## Key features

- Real-time cent-level pitch feedback
- In-tune alerts (sound, haptic, gauge)
- Reference tones for target pitches
- Adjustable A4 reference frequency
- Support for many instruments
- Apple Watch standalone tuner
- Home Screen widget

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly | $4.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Membership | $14.99 | one-time |
| Yearly Access | $4.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/sky-tuner-instrument-tuner/id6774428242/reviews.md

### 5/5 — 音准很稳，调吉他很方便

*2026-08-10*

表盘清楚，准了还有提示。吉他、尤克里里都能用，日常练琴够用了。

### 5/5 — 很好用

*2026-06-23*

给古筝调音试了一下，识别挺稳，嘈杂环境也不会乱跳。会员功能先试用再决定也行，免费部分已经能完成基本调音

**Developer response:** 谢谢您的认可！古筝定弦对音高稳定和抗干扰要求都比较高，能听到在嘈杂环境里也能稳定识别，对我们很有帮助。
免费版能完成日常调音、会员可再试用后决定，正是我们希望的使用方式。
若之后有想支持的民乐调式或功能，欢迎随时在 App 内反馈，我们会继续改进。祝练琴愉快！

## Frequently asked questions about Sky Tuner

### What instruments can I tune with Sky Tuner?

Sky Tuner supports a wide array of instruments including guitar, ukulele, bass, violin, viola, cello, piano, and various traditional Chinese instruments like Guzheng, Guqin, Pipa, Erhu, Xiaoruan, Zhongruan, and Daruan. It also offers a chromatic tuner for twelve-tone equal temperament.

### How accurate is Sky Tuner?

Sky Tuner offers cent-level precision, meaning you can see pitch deviations down to the cent. It provides in-tune alerts when you are within ±5 cents, ensuring your instrument is perfectly tuned.

### Does Sky Tuner have ads?

The free version of Sky Tuner does not contain advertisements. Ads are removed when you upgrade to Sky Tuner Pro.

### What are the benefits of Sky Tuner Pro?

Sky Tuner Pro unlocks additional features such as piano tuning, 12-tone equal temperament tuning, and unlimited instrument presets. It also removes ads and offers a one-time purchase option for lifetime access.

### Can I use Sky Tuner on my Apple Watch?

Yes, Sky Tuner offers a standalone chromatic tuner directly on your Apple Watch, allowing for convenient tuning on the go without needing your iPhone.

### How often is Sky Tuner updated?

Sky Tuner was last updated on June 25, 2026, indicating recent development and support. The current version is 1.3.

### What is the age rating for Sky Tuner?

Sky Tuner has an age rating of 4+, making it suitable for users of all ages interested in music and tuning.

### Does Sky Tuner offer a free trial for its subscription?

Yes, the Yearly subscription plan for Sky Tuner Pro includes a 7-day free trial, allowing you to experience the premium features before committing to a purchase.

## Version history (last 5 releases)

### 2.1 — 2026-08-24

Temperament modes — Choose Just or Pythagorean tuning, or stay on equal temperament. 
Capo tuning — Clearer labels when using a capo; tuning targets match physical pitch.

### 2.0 — 2026-08-17

Bug fixes and performance improvements.

### 1.9 — 2026-08-10

• Improved piano tuner: target/heard status, octave hints, larger keys
• Long-press piano keys to sustain the reference tone

### 1.8 — 2026-08-03

• Contact us via live chat or email 
• Polish and stability improvements

### 1.7 — 2026-07-29

Better iPad layout

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All apps by 艳琴 左: https://appshunter.io/developer/1751817381

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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.*