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Reyburn CyberTuner, the pro piano technician’s gold standard tuning software tool for over 20 years. Over three years in development for iOS including a year of intensive testing by master piano technicians around the world!

This is a professional piano technicians’ tuning tool and is priced accordingly. The 17+ rating reflects only the price. There is no Mature/Suggestive content, or any objectionable content of any kind. 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 member of the PTG with years of concert tuning and prep experience as well as “in the trenches” home tunings and repairs. The piano tuning knowledge base 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.

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 (if registered). In subsequent years CyberCare one year subscriptions may be purchased in-app with automatic renewal option. See "In-App Purchases" for CyberCare price in local currency. If your CyberCare Subscription lapses, iRCT will continue to function in original Standard mode.

The iRCT software includes a single user license. iRCT may be used to tune pianos (or any keyboard instrument) on one and only one iOS device at a time, but may be installed on multiple iOS devices.


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• New for iRCT! Concert Tune mode combines the best of Fine Tune and Smart Tune but customized for 7 foot (210cm) and 9 foot (275cm) concert instruments.

• NEW! 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 connects to "CyberCloud" to automatically calibrate to A440.00.

• 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).

• iRCT tuning files are fully compatible with RCT/Laptop and Pocket RCT. iRCT supports import and export of tuning files through iTunes running on Windows or MacOS X.

• Faster and higher resolution spinner than ever before gives you unsurpassed stability and unisons.

• All iRCT views rotate to support all four screen orientations.

• iRCT requires iOS 8.0 or later. iRCT runs on any iPad in iPhone mode in 1x or 2x size. Occasional internet connection required to calibrate A440 and confirm CyberCare subscription.

CyberTuner App Description & Overview

The applications CyberTuner was published in the category Music on 2012-04-26 and was developed by Reyburn Piano Service, Inc.. The file size is 10.93 MB. The current version is 7.7.2 and works well on 8.0 and high ios versions.

1. Improved iPad CyberEar interface with larger spinner and controls.
2. Fixed iOS 11 Tunings window display issues (iPad and iPhone).
3. Other minor bug fixes and interface improvements.

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CyberTuner Reviews

Dika Daley

Amazing Apps  Dika Daley  5 star

I dont how to say, i just can say its very very amazing apps :)

Crane 440

Peter Acronico, Simply Pianos  Crane 440  5 star

As a concert and university technician, this is my most valuable tool. Would not be where I am today without it. 7/18/17...Indispensable.


Indispensable!  skipjones  5 star

I am a professional piano technician with 37 years experience, and started using Cybertuner almost 20 years ago-not long after Dean developed it for Macintosh. (Haha, I think I still have the floppy disk somewhere- serial number 73). I lugged my laptop to work for years so I could use RCT. With each new incarnation of the program I eagerly upgraded- with development of the Windows version I moved to a Pocket PC (which by the way I struggled with, being a Mac guy). But RCT on that device was a seamless transition. And when iRCT was announced I was overjoyed! Now my iPad mini running iRCT and FileMaker Go accompany me everywhere there is a piano, and there are a lot of them in my life. I owe much of my success to Reyburn CyberTuner. Thank you Dean!


Just great  mkk57  5 star

Great ETD, great support.


Great app  rhpiano  5 star

Great professional application. Tech support is prompt and thorough. Worth every penny!


Life changing app  iCaleb1387  5 star

I've tuned aurally for about 15 years, working for colleges, dealers, churches, television studios etc. In the last few years I had considered buying this app, but was hesitant because I wasn't sure how big of a difference it would make day to day. The last version of this software I had tried was on a PDA back in 2006, and prior to that I had used an old OS9 PowerBook occasionally. Neither of those solutions come close to what the new iRCT version is capable of, running on my 9.7" iPad Pro. It's fast, accurate, lightweight, and easy to see! Smart tune and concert smart tune are quite possibly the best thing that's ever happened to me! (Not really exaggerating here haha). At the end of every workday, I am thankful to own this incredible app and greatly appreciate the work of Dean Reyburn and the team of people that make this app possible.


This app works Great  Pitchraise  5 star

Been using Sanderson for 27 years. The Cyber Tuner is very easy to use. Using both tuners side by side the Cyber has some very nice advantages. Great job to the the great minds that produced a wonderful product. Going to be fun detuning daily.


Great app  Cantorman26  5 star

Love this app!

Norm Dutton

Great tuner!  Norm Dutton  5 star

I put off buying CyberTuner, but I have been very pleasantly surprised at how well this tuner works. The pianos I tune regularly are more stable, and it also gets good results with the pianos that haven't been tuned in decades. I'm also using it to prepare for the RPT tuning exam. The constant improvements are a real plus.


Incredible!  Mitchboy5  5 star

I've been a faithful user for 3 years now. Consistent quality tunings and it saves me 10-15 minutes on each piano! Keep in mind, if you don't already know how to tune a piano, this is no magic bullet. Perfect for the professional!


iRCT power house  Pianomad79  5 star

I have been using RCT for many years and have seen cheaper versions of piano tuning software drift past however I resisted knowing Dean and his team would produce a tuning aid that would be spectacular and they have. I normally tune an average of 5 to 8 pianos a day so need a good job with one pass. I can then spend the extra time on voicing and regulating to make the piano play even better. Do you know what I like best. You have and are asking us to tell you of any improvements. With that pholosophy you give us what we need. Well done all the upgrades work so well. We are blessed to have your support. Thank you team great job. Gary and team at Piano Magic


Professional, reliable,well supported  Bookmark1  5 star

I've been using Reyburn CyberTuner since 1996, when it was a Mac product, the development has been amazing and they listen to their users needs and dreams. Love the reliability, professionalism, incredible accuracy and intuitive interface. Worth every penny. While challenged by the costs, I reap the rewards of game leading development everyday.


Easy to rate this 5  KWTune  5 star

Having used the iRCT mainly on the iPod Touch I have found it to be extremely accurate, easy to use and is all you say it is +. I can highly recommend the iRCT and found it well worth the money. Congratulations to all at Reyburn and to those who helped in the development. Kevin Lightfoot - Australia

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