CyberTuner Downloads & RevenueCyberTuner · App Store
CyberTuner is #84 in Music Grossing in Germany and charting in 1 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperReyburn Piano Service, Inc.
CategoryMusic
Price999.99 USD
Released
Rating★ 4.8 (59)
Version8.7.6
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)5k+ worldwide
📈Charting in a new country📈Entered the top 100📦Updated to version 8.7.6🆕First spotted by AppInsider📦Version 8.7.5🆕Released on the App Store
Full timeline · 18 events
- 📈CyberTuner charting in a new countryGermany
- 📈CyberTuner entered the top 100Top Grossing · Music · DE
- 📈CyberTuner entered the top 100Top Paid · Music · FR
- 📈CyberTuner entered the top 100Top Grossing · Music · KR
- 📈CyberTuner charting in a new countrySouth Korea
- ✏️CyberTuner: needs a newer iOSiOS 14.0 → iOS 15.0
- 📦CyberTuner updated to version 8.7.6• CyberEar spinner no longer disappears, or stops responding to sound after an incoming phone call.
• Chameleon's A440 button now shows your Global Pitch setting (e.g., A442).
• Smart Tune/Pitch Raise Resume and Start New buttons now work reliably on iPad with iOS 27.
• RPT Exam: the score sheet popup (X, O, unmarked, Aural Tutor) appears again on iOS 27.
• Fixed main menu text display at the bottom of the screen on some iPhones running iOS 26 and 27.… more - 📈CyberTuner charting in a new countryUnited States
- 📈CyberTuner entered the top 100Top Grossing · Music · US
- 📈CyberTuner entered the top 100Top Grossing · Music · CA
- 📈CyberTuner charting in a new countryCanada
- 📈CyberTuner entered the top 100Top Grossing · Music · FR
- 📈CyberTuner charting in a new countryFrance
- 📈CyberTuner entered the top 100Top Grossing · Music · AU
- 📈CyberTuner charting in a new countryAustralia
- 🆕CyberTuner first spotted by AppInsider#69 in Top Paid · Music · Japan
- 📦CyberTuner version 8.7.5No release notes
- 🆕CyberTuner 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 ★
59 ratings
Measured
Best rank now
#84
Music GrossingMeasured
CyberTuner on the App Store
App details
App ID
490451741
Publisher
Dean Reyburn
On the store since
Apr 2012
14 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
10 MB
Also listed in
Productivity
CyberTuner 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.
Business model: Paid app
How CyberTuner makes money: subscriptions, one-off purchases and ads.
SubscriptionsIn-app purchases
Subscriptions
/mo
of revenue
Top in-app purchases · App Store US, most popular first
| 1 | CyberCare Subscription subscription |
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Germany | MusicGrossing | #84 |
| Germany | MusicPaid | #200 |
Apps near CyberTuner on the chart
Music Grossing, around #84.
Ratings
App Store, worldwide.
Rating
4.8 ★
59 ratings
Measured
Ratings
59
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.8★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
51/100
faster than 51% of Music apps
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.
About CyberTuner
Reyburn CyberTuner, the pro piano technician's gold standard tuning software for over 30 years. Continuously refined through three decades of professional feedback from master piano technicians.
This is a professional piano technicians' tuning tool. We expect users to already know piano tuning basics and have their own tuning equipment.
What makes Reyburn CyberTuner for iOS (or "iRCT") superior to other tuning software? Ease of use. Clarity of functions. Intuitive and thoughtful design and programming by a Registered Piano Technician (RPT) member of the PTG with years of concert tuning and prep experience as well as "in the trenches" home tunings and repairs. Built on the collective knowledge of scores of RPTs. Flexibility to tune the way you want with unbelievable accuracy. Support by the creator, by either personal email (international) or toll-free phone (in the US & Canada) for registered users. Email listserv support is free for registered CyberTuner users.
• Concert Tune mode combines the best of Fine Tune and Smart Tune, customized for 7 foot (210cm) and 9 foot (275cm) concert instruments.
• Aural Tutor expert system analyzes your aural tuning and suggests intervals and check notes for improving your aural skills.
• Extraordinarily accurate and fast pitch correction with iRCT's Smart Tune and Pitch Raise modes. These modes use a US Patented expert system to individually predict every note on the piano.
• iRCT creates aural-quality tunings by directly matching sampled partials, just as concert aural tuners do.
• iRCT accommodates all experience levels, giving beginning tuners a very simple interface, but offers advanced tuners customizable stretch choices.
• iRCT is an "expert system" which automatically senses and compensates for short scaling in spinets, small grands, etc.
• iRCT creates musical tunings from low bass to high treble because accurate multi-partial samples (to .01¢) are taken across a wide array of sample notes (A1, A2, A3, A4, A5 and A6).
• Fast, high-resolution spinner provides unsurpassed stability and unisons.
• New: Apple Metal graphics framework for improved battery life and responsiveness.
• New: CyberAssist built-in tech support provides instant answers 24/7.
• New: iCloud Sync with merge files feature keeps your files safe.
• New: CyberEar AI Mode creates tunings which challenge even the best aural tuners.
• Occasional internet connection (approximately once a month) required to calibrate A440.
An iRCT license includes Standard Mode (ability to tune a 13 note temperament from A3 to A4) plus a FREE one (1) year subscription to CyberCare which upgrades the mode to Premium (tune 88 notes). Also included with a CyberCare subscription are free upgrades to any new iRCT features, CyberCloud calibration, and support. See "In-App Purchases" for CyberCare price in local currency. If your CyberCare Subscription lapses, iRCT will continue to function in original Standard mode.
In subsequent years CyberCare one year
This is a professional piano technicians' tuning tool. We expect users to already know piano tuning basics and have their own tuning equipment.
What makes Reyburn CyberTuner for iOS (or "iRCT") superior to other tuning software? Ease of use. Clarity of functions. Intuitive and thoughtful design and programming by a Registered Piano Technician (RPT) member of the PTG with years of concert tuning and prep experience as well as "in the trenches" home tunings and repairs. Built on the collective knowledge of scores of RPTs. Flexibility to tune the way you want with unbelievable accuracy. Support by the creator, by either personal email (international) or toll-free phone (in the US & Canada) for registered users. Email listserv support is free for registered CyberTuner users.
• Concert Tune mode combines the best of Fine Tune and Smart Tune, customized for 7 foot (210cm) and 9 foot (275cm) concert instruments.
• Aural Tutor expert system analyzes your aural tuning and suggests intervals and check notes for improving your aural skills.
• Extraordinarily accurate and fast pitch correction with iRCT's Smart Tune and Pitch Raise modes. These modes use a US Patented expert system to individually predict every note on the piano.
• iRCT creates aural-quality tunings by directly matching sampled partials, just as concert aural tuners do.
• iRCT accommodates all experience levels, giving beginning tuners a very simple interface, but offers advanced tuners customizable stretch choices.
• iRCT is an "expert system" which automatically senses and compensates for short scaling in spinets, small grands, etc.
• iRCT creates musical tunings from low bass to high treble because accurate multi-partial samples (to .01¢) are taken across a wide array of sample notes (A1, A2, A3, A4, A5 and A6).
• Fast, high-resolution spinner provides unsurpassed stability and unisons.
• New: Apple Metal graphics framework for improved battery life and responsiveness.
• New: CyberAssist built-in tech support provides instant answers 24/7.
• New: iCloud Sync with merge files feature keeps your files safe.
• New: CyberEar AI Mode creates tunings which challenge even the best aural tuners.
• Occasional internet connection (approximately once a month) required to calibrate A440.
An iRCT license includes Standard Mode (ability to tune a 13 note temperament from A3 to A4) plus a FREE one (1) year subscription to CyberCare which upgrades the mode to Premium (tune 88 notes). Also included with a CyberCare subscription are free upgrades to any new iRCT features, CyberCloud calibration, and support. See "In-App Purchases" for CyberCare price in local currency. If your CyberCare Subscription lapses, iRCT will continue to function in original Standard mode.
In subsequent years CyberCare one year
Latest updates
8.7.6
• CyberEar spinner no longer disappears, or stops responding to sound after an incoming phone call.
• Chameleon's A440 button now shows your Global Pitch setting (e.g., A442).
• Smart Tune/Pitch Raise Resume and Start New buttons now work reliably on iPad with iOS 27.
• RPT Exam: the score sheet popup (X, O, unmarked, Aural Tutor) appears again on iOS 27.
• Fixed main menu text display at the bottom of the screen on some iPhones running iOS 26 and 27.
8.7.5
Store changes
What CyberTuner changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Needs a newer iOS
iOS 14.0 → iOS 15.0