In Theory - Interval Keyboard
In Theory - Interval Keyboard generates an estimated $9–$40/month in revenue from 3–10 downloads/month on the App Store, according to AppCurrents estimates (updated 2026-06-18).
| Est. revenue / month | $9–$40 |
|---|---|
| Est. downloads / month | 3–10 |
| Estimate confidence | medium |
| Pricing | Paid $4.99 |
| Rating | 5.00 ★ (4 ratings) |
| Category | Music |
| Released | 21.02.2023 |
| App last updated | 27.09.2024 |
| Platform | iOS |
Modeled monthly estimate · rating velocity · medium confidence
About
In Theory is an interval based MIDI keyboard app with more than 110 scales. It has a keypad at the bottom with the interval buttons like +2, +1, 0, -1, -2 which would change the current note. Zero means the current note, +1 means the note after the current note, +2 means two notes after the current note, -2 means two notes before the current note in the scale and so on. Above the keypad, you can…
Trends & analysis
Chart rank trend
US · overallWhy it's surfacing
Scout 12Ratings & velocity
Rating distribution
100% positive · 4 ratingsGeographic reach
best rank · 0 storefrontsRevenue & downloads trend
ARPU $4Update history
1 update tracked- v2.21.7y ago
This version adds an internal polyphonic sampler with piano sound to the standalone app.
In Theory - Interval Keyboard — FAQ
How much money does In Theory - Interval Keyboard make?
According to AppCurrents estimates, In Theory - Interval Keyboard generates approximately $9–$40 per month (medium confidence), modeled from its the App Store chart performance, rating velocity, and monetization signals.
How many downloads does In Theory - Interval Keyboard get?
In Theory - Interval Keyboard sees an estimated 3–10 downloads per month on the App Store, per AppCurrents modeling.
Is In Theory - Interval Keyboard free?
In Theory - Interval Keyboard is a paid app priced at $4.99 on the App Store.
What is In Theory - Interval Keyboard's rating?
In Theory - Interval Keyboard holds a 5.00-star average from 4 ratings on the App Store.
When was In Theory - Interval Keyboard released?
In Theory - Interval Keyboard launched on the App Store on 21.02.2023. Its latest version shipped 27.09.2024.
