# RTTATuner > Real-time instrument tuning and intonation analysis application. (iPhone/iPad app by Daniel Gordon.) - Source: https://appshunter.io/ios/app/rttatuner/id870470418 (this page in markdown: same URL + `.md`) - Developer: [Daniel Gordon](https://appshunter.io/developer/870470421) - Category: Music - Price: $3.99 - Rating: 4.80/5 from 12 App Store ratings · 13 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 6 MB - Languages: American English - Released: 2014-05-11 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/rttatuner/id870470418/reviews.md ## What is RTTATuner? RTTA, short for Real Time Tuning Analysis, is an innovative way to tune instruments and to analyze and improve your intonation. With a conventional instrument tuner, you play a single note, and the tuner indicates how well in tune that one note is. For variable pitch instruments like the flute, this can be deceiving. What is needed is a way to analyse the intonation of all notes in a piece of music or scale, as performed naturally. This is exactly what the RTTA technique provides. Now, for the first time, the RTTA technique is available to iPhone users in the form of RTTATuner. Press the record button, and play a piece of music or some scales. RTTATuner will display the tuning of each note on a graph that is updated in real time. Choose from popular musical temperaments, or input custom temperaments. Select the pitch standard, temperament transition, display options, and note filters. Analyse your performance intonation or test the intonation of particular fixed and variable pitch instruments. Results can be exported to PDF for later reference. RTTATuner will prove useful to all kinds of musicians and instrument makers. I hope you enjoy using it; please consider providing feedback on the app store! Credits and Thanks: The RTTA concept was invented by flutemaker and researcher Terry McGee, and was first put into practice by Graeme Roxburgh. See also Scott Turner's Windows application, Flutini, and the Tartini software developed by Philip McLeod and others at Otago University. Thanks go to all of the above. The RTTATuner app was designed and developed by Dan Gordon. ## Key features - Real-time tuning analysis - Intonation improvement - Dynamic note tuning graph - Customizable temperaments and pitch standards - Performance analysis - Export results to PDF ## Recent user reviews (10 of 13) All indexed reviews: https://appshunter.io/ios/app/rttatuner/id870470418/reviews.md ### 5/5 — Simple, elegant, beautiful, brilliant. *2025-06-27* An elegantly designed, visually beautiful app with extremely fast and accurate response. MUCH more useful than a traditional tuner. I really like that the trace is displayed as a scatter plot instead of a line plot 👨‍🍳. And you can even choose the temperament! A request for the developer — is it possible to add the functionality of a drone (sustained note) on a note of the user’s choice? Even if you have to choose between playing the drone and running the RTTA, it would be nice to have both functionalities in the same app. ### 5/5 — Excellent *2024-09-20, version 2.01* I am a recorder and clarinet player, and find the app brilliant for checking which notes I need to work on to keep in tune. Excellent! ### 5/5 — Great little app *2023-09-19, version 2.01* This is excellent for working out how accurate your tuning is throughout a piece whilst playing in real time. It's become a useful piece of kit for a tin whistler or a flute player, specially on a new instrument. Thank you for developing it! ### 5/5 — Easy peesy *2020-11-08, version 2.01* An excellent application for tuning the reeds on my concertinas. ### 4/5 — Family shared apps keep disappearing *2019-10-28* I purchased the app and shared with my family. It works very well on my phone and my daughter loves to leave it on to check whether she is in tune. I am not giving it 5 stars because the app keeps disappearing from my wife’s and daugter’s phone. I hope this gets fixed soon. Otherwise, it’s excellent. ### 3/5 — Great app but has started crashing a lot under IOS 11.0 *2017-10-20* Great app but has started crashing a lot under IOS 11.0 ### 5/5 — A great practice tool! *2016-07-19* For the student seriously working on their intonation, this tool is a necessity. It provides feedback over a longer period, say the length of a piece, instead of moment by moment as a meter does, This gives a huge advantage to those developing that all important relationship between the ear and the instrument. It should be in every flutist, recorder player, or ethnic flutist's tool box. ### 5/5 — Bloody marvellous! *2016-02-03, version 2.0* Although a certain amount of understanding of the readings is required this app is nonetheless the most amazing tuning app I have ever seen. I have no hesitation in recommending it, it's worth every penny. ### 5/5 — Excellent and useful *2015-11-18* Performs as intended, within the limitations described on McGee's website and imposed by the iPhone mic. Useful both for evaluating instrument characteristics, and also consistency of the player's intonation control. My only gripe: on a phone, the display is very small. I wish a version for iPad had been included. ### 5/5 — At last! *2015-02-08, version 2.0* This is the first tuning app that is really useful for practice. The idea - to listen to a whole piece and present you with an analysis - is very different from the standard apps (I use singin Tuna a lot, for instance) in that it can help you work out where your pitching is systematically off, be that because of the instrument or the player. I help my children practice (trombone, trumpet, sax, violin, viola, cello) and it works well for each instrument. Thank you. ## Frequently asked questions about RTTATuner ### What is RTTATuner? RTTATuner is an application designed for real-time tuning analysis and intonation improvement for musical instruments. It allows users to record their playing and visualize the tuning of each note on a graph that updates in real time. ### How does RTTATuner analyze intonation? Instead of just tuning individual notes, RTTATuner analyzes the intonation of all notes within a piece of music or scale as performed naturally. This provides a more comprehensive understanding of your performance. ### Can I customize tuning settings in RTTATuner? Yes, RTTATuner allows you to choose from popular musical temperaments or input custom temperaments. You can also select the pitch standard, temperament transition, and display options. ### What devices does RTTATuner support? RTTATuner is available for iPhone and iPod devices. It requires iOS 4.3 or later. ### How much does RTTATuner cost? RTTATuner is a paid application, priced at $3.99. There are no in-app purchases or advertisements. ### Can I save my tuning analysis results? Yes, RTTATuner allows you to export your performance intonation analysis results to PDF format for later reference and review. ### How often is RTTATuner updated? The latest version, 2.01, was released on November 2, 2018. While updates may not be frequent, the app has been stable and functional for its users. ### What is the age rating for RTTATuner? RTTATuner has an age rating of 4+, making it suitable for a wide range of users interested in music and tuning. ## Version history (last 3 releases) ### 2.01 — 2018-11-02 Minor update to fix an issue with the "export to PDF" function not being available. ### 2.0 — 2014-05-30 1. Export to PDF functionality added. 2. Sleep mode is suppressed during recording. 3. Cleaner look. 4. Rameau Tempérament Ordinaire added. 5. Improvements to statistics (more efficient, uses interquartile mean instead of mean). 6. Option to rate app in the app store. 7. Miscellaneous minor fixes and improvements. ### 1.0 — 2014-05-05 No release notes. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*