Report updated Apr 30, 2026
In Theory - Interval Keyboard
For musicians and producers looking for an interval-based workflow to experiment with scales and chord structures.
Overview · Full Intel report in progress
In Theory - Interval Keyboard is an established music app that is a paid app. With a 5.0/5 rating from 4 reviews, it shows polarized user reception.
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
A bottom-row interface allows users to shift notes relative to the current scale using interval buttons ranging from -2 to +2.
Users can toggle additional scale intervals and select notes from adjacent octaves to build rich, extended chords.
Supports external MIDI keyboard input, mapping white keys to interval triggers and allowing MIDI CC messages to toggle chord intervals.
How much does it cost?
Who Built It?
Cem Olcay
Empowering mobile musicians with specialized MIDI sequencing and generative tools. Streamlining complex music theory for iOS producers.
Portfolio
13
Apps
What other apps does Cem Olcay make?
SpinBud - Rotary Speaker FX
FretBud - Chord & Scales for Guitar, Bass and More
Chord Detector
Patch Roulette AUv3 Randomizer
ScaleBud - AUv3 MIDI Keyboard
ChordBud 2 AUv3 MIDI Sequencer
Explore the full Cem Olcay report
Portfolio breakdown, audience, momentum, and every app published by Cem Olcay.
Analysis in progress, available soon
What do users think recently?
Analysis in progress, available soon
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
Analysis in progress, available soon
What is the competitive landscape for In Theory - Interval Keyboard?
How's The Music Market?
How does it evolve in the Music market?
Rank progression
1 active ranking tracked — 30-day window
Strategic analysis coming soon
SWOT, key takeaways & outlook
The outtake for In Theory - Interval Keyboard
Key Takeaways
In Theory provides a unique, interval-centric approach to MIDI input that simplifies the creation of complex scales and chord voicings.
Where Is It Heading?
Trend analysis
Available very soon