# Klef: Learn Music & Theory

> Gamified music learning app with theory, sight-reading, ear training, and practice tools. (iPhone/iPad app by ALI DAGDOGEN.)

- Source: https://appshunter.io/ios/app/klef-learn-music-and-theory/id6773070466 (this page in markdown: same URL + `.md`)
- Developer: [ALI DAGDOGEN](https://appshunter.io/developer/6773070468)
- Category: Music
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 13 MB
- Languages: English, French, German, Spanish, Turkish
- Released: 2026-06-07
- Data updated: 2026-10-06
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/klef-learn-music-and-theory/id6773070466/reviews.md

## What is Klef?

Klef is the pocket conservatory that makes learning music as fun as a game. Start from zero or level up — from reading notes to ear training, chords to music theory, it's all in one app.

WHAT YOU'LL LEARN
• Sight Reading — read the staff fast, on reflex (treble/bass/mixed clef)
• Ear Training — hear and name intervals, chords and melodies
• Rhythm — feel the beat and note values
• Music Theory — scales, modes, chords and key signatures

TOOLS — ALL IN YOUR POCKET
• Tuner — guitar, bass, ukulele, violin; tap a string to hear its tone
• Metronome — time signatures, subdivisions, gradual tempo, tap tempo
• Chord Lab — identify chords, find chords, scales, circle of fifths, progressions
• Interactive piano, guitar and bass

WHY KLEF
• Real progress in 5 minutes a day
• Streaks, daily rewards and a weekly league keep you going
• Duel a friend and climb the ranks
• Every tool teaches the "why" and "how," not just the answer

Whether your instrument is piano or guitar, Klef turns you into a musician who reads notes and trains the ear.

Start today. Keep your ear awake all day.

Klef Plus is an auto-renewable subscription.
• Plans: Klef Plus Monthly and Klef Plus Yearly
• Payment is charged to your Apple ID at confirmation of purchase
• The subscription automatically renews unless canceled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to the end of the period
• You can manage or cancel your subscription anytime in your App Store account settings
Privacy Policy: https://klefapp.github.io/klef-legal/
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Sight reading practice
- Ear training exercises
- Rhythm and beat training
- Music theory lessons
- Instrument tuner
- Metronome
- Chord identification and creation

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Plus for Klef Monthly | $4.99 | per month |
| Plus for Klef Yearly | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 50 Gems Pack | $0.99 | one-time |
| Founder's Edition | $9.99 | one-time |
| Klef Plus Lifetime | $29.99 | one-time |
| 170 Gems Pack | $2.99 | one-time |
| 480 Gems Pack | $7.99 | one-time |
| 1300 Gems Pack | $19.99 | one-time |


## Is Klef safe?

Not enough ratings yet to assess Klef.

## Is Klef legit?

Klef: Learn Music & Theory has limited verification signals. The AppsHunter Legitimacy Score for Klef is 48 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/klef-learn-music-and-theory/id6773070466/reviews.md

### 5/5 — Harika uygulama

*2026-06-17*

İlk önce uygulama hocamın olduğu ıcın ona çok teşekkür ederım çok güzel uygulama gelıstırılmıs ındırmeyen pısman

**Developer response:** Çok teşekkür ederiz! Seni burada görmek ve uygulamayı beğendiğini duymak bizi çok mutlu etti. Müzik yolculuğunda Klef'in sana ve diğer tüm müzikseverlere rehberlik etmesi en büyük motivasyonumuz. Keyifli çalışmalar ve bol müzikli günler dileriz!

## Frequently asked questions about Klef

### What can I learn with Klef?

Klef helps you learn sight-reading, ear training, rhythm, and music theory. You can also use its tools for tuning instruments, using a metronome, and exploring chords.

### Is Klef suitable for beginners?

Yes, Klef is designed to help users start from zero and progress. It offers gamified lessons and tools to make learning music accessible and fun for all levels.

### What instruments can I tune with Klef?

Klef's tuner supports guitar, bass, ukulele, and violin. Simply tap a string to hear its correct tone.

### How often is Klef updated?

The app was last updated on July 14, 2026, with version 3.5.0. This indicates a relatively active development cycle.

### What are the subscription options for Klef Plus?

Klef Plus offers monthly and yearly subscription plans. The yearly plan includes a 3-day free trial.

### How do I cancel my Klef Plus subscription?

You can manage or cancel your subscription at any time through your App Store account settings. Cancellations must be made at least 24 hours before the end of the current period.

### What is the age rating for Klef?

Klef has an age rating of 4+, making it suitable for a wide range of users interested in learning music.

### Does Klef have ads?

The provided data does not specify if Klef contains advertisements. However, it does offer a premium subscription, Klef Plus, for enhanced features.

## Version history (last 1 release)

### 3.5.0 — 2026-07-14

This update focuses on sound, honesty and polish.

REAL INSTRUMENT SOUND
- Guitar, bass and piano now each have their own voice. Bass uses a new physical string model: dark, round and full.
- Chords on guitar and bass are strummed low-to-high, like a real hand would play them.
- In Chord Finder, Play now plays exactly what you see on the fretboard. Changing position or inversion changes the sound too.
- Chord voicings respect a real hand span: open C is the textbook shape, no impossible stretches.

DUELS
- Active duels are now visible with a clear "waiting for rival" state, and you can reshare the code.
- Recent results show only finished matches. Tap them for your full match history with scores and trophies.
- Pending duels expire honestly after 7 days, with no trophy penalty.

PROFILE AND PROGRESS
- Add a profile photo from your gallery, or keep an emoji avatar.
- My Stats now breaks mastery down path by path.
- The Class tab shows your weekly report card: active days, correct answers and practice minutes.

QUALITY OF LIFE
- The screen stays awake while the tuner or metronome is open, and during instrument-mode games.
- Tuner calibration, last chord and per-mode game settings are remembered.
- Clearer paths when microphone or notification permission was previously denied.
- Redesigned pages across the app, a new launch screen, and many fixes.

## Apps similar to Klef

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Melody Mapper](https://appshunter.io/ios/app/melody-mapper/id6746414529) | — | Free | Music |
| [At First Sight: Sight Reading](https://appshunter.io/ios/app/at-first-sight-sight-reading/id6810500042) | 5.0 (1) | Free | Music |
| [Ear Games: Ear Trainer](https://appshunter.io/ios/app/ear-games-ear-trainer/id6788599705) | 5.0 (1) | Free | Music |
| [MUZLY: Vocal Analysis](https://appshunter.io/ios/app/muzly-vocal-analysis/id6813373514) | — | Free | Music |
| [ToneSight: Singing Pitch Tuner](https://appshunter.io/ios/app/tonesight-singing-pitch-tuner/id6802136569) | 5.0 (1) | Free | Music |
| [FretBinder](https://appshunter.io/ios/app/fretbinder/id6800051428) | — | Free | Music |

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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 2026-10-06.*