Monthly
$9.99/month
Cancel any time.
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One subscription, all three apps
- The Circle of Fifths — the full interactive wheel, all 12 keys
- Theory Flashcards — seven levels, Student → Maestro, over 1.9 million card combinations
- Rainbow Gold Quest — the ages 4–7 game, included free
- Every app we ship next, at no extra cost
One price. All three apps.
No per-app upsells and no ads. One subscription unlocks the Circle of Fifths, all nine Flash Card modes, and Rainbow Gold Quest — on every device in the house.
Yearly
$99.99/year
Works out to $8.33 a month.
Start Yearly- The Circle of Fifths — the full interactive wheel
- Theory Flashcards — nine card groups across seven levels, Student → Maestro
- Rainbow Gold Quest — the kids' game, included free
- Every app we ship next, at no extra cost
Got a 7-day trial code? Redeem it here.
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Enter the email you subscribed with and we'll send a one-tap link. No password to remember.
Redeem a 7-day code
Given a trial code? Enter it with your email and all three apps unlock for 7 days.
Before you decide
Can I see it working first?
Yes — every preview clip on the Apps page is the real thing, recorded straight off the screen with sound. Nothing is staged.
How does the 7-day trial code work?
Enter the code with your email above and all three apps unlock immediately for 7 days. No card, no auto-charge — when it ends, it just ends.
Can I use it on more than one device?
Yes. Sign in with the same email on a tablet, a laptop, whatever your child uses. There's no device limit.
Can I cancel?
Any time, from the link in your receipt. Nothing renews after you cancel.