Circle o Fifths Downloads & RevenueCircle o Fifths: Guitar+Piano · App Store
Circle o Fifths: Guitar+Piano is #62 in Music Paid in Japan and charting in 1 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperTim Mueller
CategoryMusic
Price4.99 USD
Released
Rating★ 4.8 (1.1k)
Version3.0
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)100k+ worldwide
Circle o Fifths: Guitar+Piano update history & changes
Last change · 39 events since 19 Feb 2020Full timeline ↓✏️Description updated✏️New iPad screenshots📦Updated to version 3.0📈Entered the top 100📈Charting in a new country⭐Passed 1K ratings⭐Passed 100 ratings🎉In-app event: A scale a week📦Updated to version 2.2.6🆕Its developer released another app: The Jellyfish Journey
Full timeline · 39 events
- ✏️Circle o Fifths: Guitar+Piano: description updated· TH
- ✏️Circle o Fifths: Guitar+Piano: new iPad screenshots· TH
- ✏️Circle o Fifths: Guitar+Piano: new screenshots10 screenshots (was 10) · TH
- ✏️Circle o Fifths: Guitar+Piano: description updated· JP
- ✏️Circle o Fifths: Guitar+Piano: new iPad screenshots· JP
- ✏️Circle o Fifths: Guitar+Piano: new screenshots10 screenshots (was 10) · JP
- ✏️Circle o Fifths: Guitar+Piano: app got bigger12 MB → 14 MB (+10%)
- 📦Circle o Fifths: Guitar+Piano updated to version 3.0Your practice tool just became a band.
Write whole songs with verses, choruses and bridges, then add a drummer who never rushes. Head to Scales to jam over your own chords, or tap Solo and let the app improvise something new every time. Send a song to a friend as an audio file, and tap in your tempo instead of guessing it.
Progressions got a tidy-up too: hold a chord to move or remove it, and the picker stays out of the way until you need it.… more - 📈Circle o Fifths: Guitar+Piano entered the top 100Top Paid · Music · JP
- 📈Circle o Fifths: Guitar+Piano charting in a new countryJapan
- ✏️Circle o Fifths: Guitar+Piano: new iPad screenshots· FR, TH
- ✏️Circle o Fifths: Guitar+Piano: new screenshots10 screenshots (was 10) · FR, TH
- ✏️Circle o Fifths: Guitar+Piano: new iPad screenshots· CA
- ✏️Circle o Fifths: Guitar+Piano: new screenshots10 screenshots (was 10) · CA
- ✏️Circle o Fifths: Guitar+Piano: new screenshots10 screenshots (was 10) · AE
- 📈Circle o Fifths: Guitar+Piano entered the top 10Top Paid · Music · AE
- ✏️Circle o Fifths: Guitar+Piano: new iPad screenshots· GB
- ✏️Circle o Fifths: Guitar+Piano: new screenshots10 screenshots (was 10) · GB
- ✏️Circle o Fifths: Guitar+Piano: new iPad screenshots· US
- ✏️Circle o Fifths: Guitar+Piano: new screenshots10 screenshots (was 10) · US
- 📈Circle o Fifths: Guitar+Piano entered the top 10 on iPad · Top Paid All AppsIT
- ✏️Circle o Fifths: Guitar+Piano: new iPad screenshots· ID
- ✏️Circle o Fifths: Guitar+Piano: new screenshots10 screenshots (was 10) · ID
- 🎉Circle o Fifths: Guitar+Piano in-app event: A scale a weekCHALLENGE · until 12 Nov
- 📦Circle o Fifths: Guitar+Piano updated to version 2.2.6Just some polish in this one.
- 📦Circle o Fifths: Guitar+Piano updated to version 2.2.5We polished the frets. And the keys. Mostly the screenshots, honestly.
- 🆕Circle o Fifths: Guitar+Piano: its developer released another app: The Jellyfish Journey
- 📈Circle o Fifths: Guitar+Piano entered the top 10Top Paid · Music · ID
- 📈Circle o Fifths: Guitar+Piano new best rank in the overall chart: #101Top Paid · All Apps · TH
- 🆕Circle o Fifths: Guitar+Piano first spotted by AppInsider#56 in Top Paid · Music · Canada
- 📦Circle o Fifths: Guitar+Piano version 2.2.4No release notes
- 🆕Circle o Fifths: Guitar+Piano released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.8 ★
1.1k ratings
Measured
Best rank now
#62
Music PaidMeasured
New ratings a week
3.1
App Store, 4-week average
Measured
Circle o Fifths: Guitar+Piano on the App Store
App details
App ID
1499417636
Publisher
Sleep Laugh Studios LLC
On the store since
Feb 2020
6 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
14 MB
Also listed in
Education
Circle o Fifths: Guitar+Piano downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | MusicPaid | #62 |
Apps near Circle o Fifths: Guitar+Piano on the chart
Music Paid, around #62.
Ratings
App Store, worldwide.
Rating
4.8 ★
1.1k ratings
Measured
Ratings
1.1k
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
3.1
4-week average
Lifetime rating
4.7★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
66/100
faster than 76% of Music apps
New ratings by country (2)
| Country | New ratings a week | Share | Last 2 weeks vs the 2 before |
|---|---|---|---|
 United States | 1.3 | 57% | – |
 Indonesia | 1 | 43% | – |
App Store ratings in the countries we track, 4-week average.
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about Circle o Fifths: Guitar+Piano
From the 23 most recent App Store reviews in the US.
Users praise the app as an intuitive and essential reference tool for understanding chord progressions and music theory. However, significant complaints arise regarding audio playback failures, incorrect pitch tuning on guitar, and layout issues where content is cut off on certain screen sizes.
Mixed but leaning positive (74% of recent reviews give 4–5 stars). People like it for being useful, and its features and content. Recent reviews are more negative than earlier ones.
What people like
- Useful: “Simple, effective, and useful”
- Features & content: “I’m saving a star for those features”
- Price & subscription: “Well worth the trivial cost of the app”
- Updates: “There is just a little mistake you can correct in the next update: the B chord sounds like a suspended chord instead of a major one”
About Circle o Fifths: Guitar+Piano
Turn music theory into something you can actually play — on guitar or piano.
Circle o Fifths is the fastest way to find the chords in any key, learn the scales to solo over them, and write your own songs. A handy practice tool that's a game changer for learning songs, writing your own, and finally understanding how chords fit together.
NEW in 3.0: Songs and jamming. Write whole songs with verses, choruses and bridges, add drums (Rock, Funk, Disco, Half Time or Ballad), then play scales over your own chords, or tap Solo and let the app improvise something new every time. Share any song with a friend as an audio file.
NEW in 2.2: A Scales tab — see any scale on the guitar fretboard or piano keyboard, color-coded by degree, with the five CAGED shapes, full-neck patterns, and a Licks Library of ready-made riffs (blues, rock, metal, country, bluegrass, jazz, and worship).
Switch between guitar and piano on the fly — chord diagrams, sounds, and strumming all swap to match. Head to the Scales tab to see any scale light up on the fretboard or keyboard, work through CAGED shapes and full-neck patterns, and learn ready-made licks note for note. Jump to the Progressions tab to write your own songs, pick a tempo, add drums, and hear them played back with realistic strumming patterns. Then tap Jam and solo over what you wrote. And tap the palette to recolor the entire app with 21 handpicked themes, a few suspiciously reminiscent of your favorite films, albums, and bands.
Features:
• 3 full rings with support for all major and minor keys
• 36 interactive notes/chords on the circle
• Scales tab — see any scale on guitar or piano, color-coded by degree
- The five CAGED shapes plus full-neck patterns (Diagonal, 3 notes/string)
- Chord-tones view to spotlight the root, 3rd, and 5th
- Licks Library — ready-made riffs in blues, rock, metal, country, bluegrass, jazz, and worship
- Tempo control to run any scale up and back
- NEW! Backing chords and drums to play along with
- NEW! Solo mode — the app improvises a new solo every time
• Guitar chord charts flip vertical or horizontal
• 21 color themes — personalize the wheel, badges, and chord charts (just tap the palette icon)
• Key badge in the center of the wheel — your current major and relative-minor key, plus its key signature, at a glance
• Toggle between guitar and piano modes — affects both sounds and diagrams
• Synthesized piano with rich, multi-voice triads
• 36 real guitar audio recordings of every chord on the circle
• 36 guitar chord charts — drawn right in the app and themed to match; just tap and hold to learn
• Piano chord diagrams with highlighted notes on a keyboard
• Chords tab to see all chords in each key, with major/minor relationships
• NEW! Songs — write verses, choruses and bridges, saved automatically
• NEW! Share any song as an audio file
• Progressions tab — build your own progressions and hear them play back
- Pick any major or minor key (24 total)
- Tap I, ii,
Circle o Fifths is the fastest way to find the chords in any key, learn the scales to solo over them, and write your own songs. A handy practice tool that's a game changer for learning songs, writing your own, and finally understanding how chords fit together.
NEW in 3.0: Songs and jamming. Write whole songs with verses, choruses and bridges, add drums (Rock, Funk, Disco, Half Time or Ballad), then play scales over your own chords, or tap Solo and let the app improvise something new every time. Share any song with a friend as an audio file.
NEW in 2.2: A Scales tab — see any scale on the guitar fretboard or piano keyboard, color-coded by degree, with the five CAGED shapes, full-neck patterns, and a Licks Library of ready-made riffs (blues, rock, metal, country, bluegrass, jazz, and worship).
Switch between guitar and piano on the fly — chord diagrams, sounds, and strumming all swap to match. Head to the Scales tab to see any scale light up on the fretboard or keyboard, work through CAGED shapes and full-neck patterns, and learn ready-made licks note for note. Jump to the Progressions tab to write your own songs, pick a tempo, add drums, and hear them played back with realistic strumming patterns. Then tap Jam and solo over what you wrote. And tap the palette to recolor the entire app with 21 handpicked themes, a few suspiciously reminiscent of your favorite films, albums, and bands.
Features:
• 3 full rings with support for all major and minor keys
• 36 interactive notes/chords on the circle
• Scales tab — see any scale on guitar or piano, color-coded by degree
- The five CAGED shapes plus full-neck patterns (Diagonal, 3 notes/string)
- Chord-tones view to spotlight the root, 3rd, and 5th
- Licks Library — ready-made riffs in blues, rock, metal, country, bluegrass, jazz, and worship
- Tempo control to run any scale up and back
- NEW! Backing chords and drums to play along with
- NEW! Solo mode — the app improvises a new solo every time
• Guitar chord charts flip vertical or horizontal
• 21 color themes — personalize the wheel, badges, and chord charts (just tap the palette icon)
• Key badge in the center of the wheel — your current major and relative-minor key, plus its key signature, at a glance
• Toggle between guitar and piano modes — affects both sounds and diagrams
• Synthesized piano with rich, multi-voice triads
• 36 real guitar audio recordings of every chord on the circle
• 36 guitar chord charts — drawn right in the app and themed to match; just tap and hold to learn
• Piano chord diagrams with highlighted notes on a keyboard
• Chords tab to see all chords in each key, with major/minor relationships
• NEW! Songs — write verses, choruses and bridges, saved automatically
• NEW! Share any song as an audio file
• Progressions tab — build your own progressions and hear them play back
- Pick any major or minor key (24 total)
- Tap I, ii,
Latest updates
3.0
Your practice tool just became a band.
Write whole songs with verses, choruses and bridges, then add a drummer who never rushes. Head to Scales to jam over your own chords, or tap Solo and let the app improvise something new every time. Send a song to a friend as an audio file, and tap in your tempo instead of guessing it.
Progressions got a tidy-up too: hold a chord to move or remove it, and the picker stays out of the way until you need it.
2.2.6
Just some polish in this one.
2.2.5
We polished the frets. And the keys. Mostly the screenshots, honestly.
Store changes
What Circle o Fifths: Guitar+Piano changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated 
New iPad screenshots
New screenshots
10 screenshots (was 10)
