1. Home
  2. 🎵 Music
  3. In Theory
  4. Similar apps

Best apps like In Theory - Interval Keyboard

11+ similar apps compared and reviewed

4.8 avg rating
4 free apps
Updated July 2026
In Theory - Interval Keyboard
🔧 Utilities
🎵 Music

In Theory is great, but it's not the only option. Explore 11+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to In Theory

Piano Chords and Scales#1

Piano Chords and Scales by Sincere Apps

Learn, play and compose songs
Editor's Choice
🎵 Music
4.8😊(9.1K ratings)
FreeIn-App Purchases
Piano Chords and Scales screenshot 1
Piano Chords and Scales screenshot 2
Piano Chords and Scales screenshot 3
Piano Chords and Scales screenshot 4
Piano Chords and Scales screenshot 5
Piano Chords and Scales screenshot 6

Explore chords, scales, and progressions to compose music. Visualize musical structures on a virtual piano and staff, with interactive tools and audio playback. Ideal for musicians of all levels seeking inspiration and understanding.

What We Love

  • 🚀 Great app, great value for money
  • 👍 Useful for learning piano
  • 👍 Helpful for music production
  • 👍 Intuitive and easy to use

Room to Improve

  • 🐛 Bugs and glitches in desktop and mobile versions
  • 💰 Expensive for full version
  • 🤔 Some features not as intuitive as expected
TONALY: Songs, Scales & Theory#2

TONALY: Songs, Scales & Theory by Christian Hengst Daniels

Chords, Scales & Progressions
Strong Contender
🎵 Music
4.8😊(6.3K ratings)
FreeIn-App Purchases
TONALY: Songs, Scales & Theory screenshot 1
TONALY: Songs, Scales & Theory screenshot 2
TONALY: Songs, Scales & Theory screenshot 3
TONALY: Songs, Scales & Theory screenshot 4
TONALY: Songs, Scales & Theory screenshot 5
TONALY: Songs, Scales & Theory screenshot 6

This app helps musicians of all levels write songs, find chords, and learn music theory. It offers tools for chord and scale practice, MIDI and PDF export, and collaboration features for songwriters and producers.

What We Love

  • 👍 Intuitive and easy to use
  • 🚀 Helpful for learning music theory
  • 💡 Useful for songwriting and composing
  • 👍 Clean and visually appealing design

Room to Improve

  • 🔒 Paywall for additional scales and features
  • 🐛 Occasional glitches and crashes
  • 🔒 Limited chord and rhythm customization options
Piano 코드 & 스케일 사전#3

Piano 코드 & 스케일 사전 by Songtive

Jazz 사전 & 코드 진행
Worth Considering
🎵 Music
4.8😊(1.3K ratings)
FreeIn-App Purchases
Piano 코드 & 스케일 사전 screenshot 1
Piano 코드 & 스케일 사전 screenshot 2
Piano 코드 & 스케일 사전 screenshot 3
Piano 코드 & 스케일 사전 screenshot 4
Piano 코드 & 스케일 사전 screenshot 5
Piano 코드 & 스케일 사전 screenshot 6

This music theory app serves as a comprehensive chord and scale dictionary for musicians. It offers tools for building chord progressions, exploring the circle of fifths, and creating custom libraries. Users can find chords and scales by inputting keys or using a MIDI keyboard, with options for detailed analysis and audio playback.

What We Love

  • 👍 Useful reference tool
  • 🎹 Extensive chord and scale library
  • 🎨 Visually appealing interface
  • 💡 Reverse chord lookup feature

Room to Improve

  • 🐛 Crashes and stability issues
  • 🔍 Overwhelming amount of information
  • 🔀 Navigation can be confusing

More apps like In Theory

4
Note Quest: Learn Piano Music
Note Quest: Learn Piano Music
Note Quest: Learn Piano Music
Sight Reading Sheet Music Game
Free

This app helps you learn to read sheet music faster through interactive games and exercises. It offers timed drills for note recognition and interval practice, along with curated sight-reading exercises for various skill levels. Connect a MIDI keyboard or use the virtual piano for practice.

Timed note recognition drillsInterval trainingLeveled sight-reading exercises
🎵 Music
(605)
free with in-app purchases
5
Circle o Fifths: Music Theory
Circle o Fifths: Music Theory
Circle o Fifths: Music Theory
Chord progressions and theory
$2.99

Learn and practice music theory with an interactive circle of fifths. Explore major, minor, and diminished keys with audio recordings and guitar chord charts. Visualize chord relationships and transpose songs easily.

Interactive circle of fifthsMajor, minor, and diminished keysAudio recordings of chords
🎵 Music
(1K)
free
6
GSDSP MagicBlur
GSDSP MagicBlur
GSDSP MagicBlur
Spectral Blur / Freeze AUv3
$29.99

Transform audio into lush pads, frozen textures, or spectral motion with this multi-curve spectral blur and freeze effect. Shape different parts of the spectrum with independent blur times, and explore evolving drones and unique spectral transitions.

Frequency-dependent spectral blurMulti-curve spectral freezeMorphing and frame selection
🎵 Music
(7)
paid
7
GSDSP MagicPitch
GSDSP MagicPitch
GSDSP MagicPitch
Spectral Pitch Shifter AUv3
$29.99

This audio effect plugin offers independent control over harmonics and frequencies. It allows detailed sculpting of pitch and frequency shifts across the entire spectrum, enabling unique vocal textures and experimental sound design.

Multi-curve spectral pitch shiftingIndependent pitch/frequency control per rangePitch vs. frequency shifting modes
🎵 Music
(0)
paid
8
Mantis - BBD Echo
Mantis - BBD Echo
Mantis - BBD Echo
Uncommon, Vintage, Delay
$7.99
$14.99 | 47% OFF

This audio plugin emulates a vintage 70s analog delay/echo unit, offering a warm, authentic sound. It features four echo taps, swell selectors, and a unique modulation section for chorus-like effects.

Emulates rare 70s BBD delay/echoWarm analog soundFour echo taps
🎵 Music
(8)
paid
9
Pixel Music
Pixel Music
Pixel Music
Make music from images
$5.99

Transform your favorite images into unique musical compositions. This app uses pixel data to control pitch, duration, and velocity, allowing you to create melodies and rhythms by interacting with visuals. Explore various traversal methods and image data types for diverse sonic results.

Pixels control pitch, velocity, and note durationPlay multiple images simultaneouslyAUv3 support with MIDI
🎵 Music
(7)
paid
10
GSDSP MagicDelay
GSDSP MagicDelay
GSDSP MagicDelay
Spectral Delay AUv3
$29.99

This app offers a unique spectral delay effect with advanced control over thousands of parallel delays using a single curve. It allows for real-time modulation, tempo-syncing, and precise feedback management for expansive sonic exploration.

Spectral delay with single curve controlTempo-synced grids and free-flowing motionReal-time curve modulation and morphing
🎵 Music
(4)
paid
  1. Home
  2. 🎵 Music
  3. In Theory
  4. Similar apps