# Trace Tuner > Chromatic tuner app displaying tuning history for enhanced accuracy. (iPhone/iPad app by Dr. Harald Merkel.) - Source: https://appshunter.io/ios/app/trace-tuner/id404381428 (this page in markdown: same URL + `.md`) - Developer: [Dr. Harald Merkel](https://appshunter.io/developer/404381431) - Category: Music - Price: $0.99 - Rating: 5.00/5 from 4 App Store ratings · 44 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 1 MB - Languages: American English, German (Germany) - Released: 2010-11-22 - Data updated: 2026-08-08 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/trace-tuner/id404381428/reviews.md ## What is Trace Tuner? Trace Tuner is a simple but accurate chromatic tuner. In contrast to similar apps, you will not get the look and feel of a hardware tuner with a slow and damped needle. Instead, you will see the trace of your tuning over the last five seconds. By this, the reaction of the tuner can be faster and more accurate, but still gives you the feeling for your tuning. To keep it simple, only the neccessary features are implemented: ● Frequency spectrum to check your input ● The concert pitch of 440Hz can be variied     in 1Hz steps ● Choose your favorite notation    (English, German, Solfège) ● Support for transposing instruments The tuner works with the build in microphone of the iPhone. For the iPod touch you will need an external microphone. ## Key features - Tuning history display - Frequency spectrum - Adjustable concert pitch - Multiple notation options - Support for transposing instruments ## Recent user reviews (10 of 44) All indexed reviews: https://appshunter.io/ios/app/trace-tuner/id404381428/reviews.md ### 5/5 — My favorite sax training tuner… *2022-03-22* …a great tuning APP :)… ### 5/5 — Great tuner *2021-07-07* I love this tuner and have used it for many years. Please keep it updated! ### 5/5 — best and most versatile tuner that I have come across *2018-03-31* This is to my mind by far the best and most versatile tuner that I have come across. The Trace Tuner is unique in how it measures and displays tuning and it’s also extremely sensitive. It is easy to play and evaluate even very short and quiet notes, invaluable for instrumentalists wanting to check and improve their tone production. You can see several seconds’ worth of history, thus easy to see back with a great deal of accuracy over the passage just played. I don’t know of any other tuner able to do this. It is possible to do basic extras such as changing the overall pitch (A=440 or other values). Moreover, it has the really cool additional feature of displaying an accurate frequency map showing all overtones and harmonics including their respective volume - you can in effect SEE TIMBRE. No, I don’t receive a commission for saying all this and I have no personal connection with the developers. I have used this tuner for many years now. It is BRILLIANT. Thanks for creating it. ### 1/5 — Useless *2017-11-09* Doesn’t pick up sound and no option to change tuning ### 5/5 — Funktioniert seit Jahren und jetzt fit für iOS 10 *2017-05-04* Weiter so! Vielen Dank! ### 5/5 — So perfect! *2017-03-30* Exactly what you need for tuning whatever you need. The price is great and would be for much more! Thank you so much for keeping this updated! ### 5/5 — Danke Merkel! *2017-03-29* Endlich in 64 bit! ### 5/5 — Super! *2016-05-28* Als professioneller Musiker- Klarinettist- nutze ich das Stimmgerät seit einigen Jahren. Besonders anschaulich ist es für meine Schüler, aber auch für mich , den Verlauf der Stimmung über einen längeren Zeitraum verfolgen zu können. Super für alle Bläser. Schön wäre eine Fixierung des Stimmtons. Beim Start geht's immer wieder auf 440Hz zurück. 443 ist momentan Standard. Aber sonst. Toll!! ### 5/5 — Very accurate! *2015-02-17* I was having trouble tuning my ukulele with other paid apps. There's not a lot of margin for error with this tiny instrument. This app is very easy to use and my uke sounds so sweet now. Thank you! From the looks of the settings page, this app could probably use a refresh to bring it in line with the latest Apple graphical standards, but that's a minor niggle for an app that really improved the sound of my instrument, and therefore, my playing! ### 5/5 — Top *2014-11-14* Der unschlagbar beste Tuner auf dem iPhone. ## Frequently asked questions about Trace Tuner ### What makes Trace Tuner different from other tuners? Trace Tuner displays the trace of your tuning over the last five seconds, providing a faster and more accurate response than hardware tuners with damped needles. This unique visualization helps users better understand their tuning adjustments. ### How accurate is Trace Tuner? The app is designed for accuracy by showing the tuning history, allowing for quicker adjustments. It has received a high rating of 5.0 stars from 4 ratings, indicating strong user satisfaction with its performance. ### What musical notations does Trace Tuner support? Trace Tuner supports multiple notation systems to cater to a wider range of musicians. Users can choose between English, German, and Solfège notations. ### Can Trace Tuner be used with transposing instruments? Yes, Trace Tuner offers support for transposing instruments, making it a versatile tool for musicians playing various types of instruments. ### What devices is Trace Tuner compatible with? Trace Tuner is compatible with iPhone, iPad, and iPod touch devices. For iPod touch, an external microphone is required for optimal performance. ### How often is Trace Tuner updated? The app was last updated on March 29, 2017, to version 1.4. While updates have not been frequent recently, the app remains functional for its core purpose. ### What is the price of Trace Tuner? Trace Tuner is available for a one-time purchase of $0.99. There are no in-app purchases or ads, offering a straightforward and ad-free tuning experience. ### What is the age rating for Trace Tuner? Trace Tuner has an age rating of 4+, making it suitable for a wide audience of users, including younger musicians. ## Version history (last 4 releases) ### 1.4 — 2017-03-29 This update from Apple will improve the functionality of this app. No new features are included. Update for iOS 10. ### 1.3 — 2012-04-27 A bug for iPhone 1 removed. ### 1.2 — 2012-04-04 Bug fixes for iOS 5. ### 1.1 — 2010-11-22 No release notes. ## Apps similar to Trace Tuner | App | Rating | Price | Category | | --- | --- | --- | --- | | [Accurate Cello Tuner](https://appshunter.io/ios/app/accurate-cello-tuner/id1261668578) | — | $1.99 | Music | | [CyberTuner](https://appshunter.io/ios/app/cybertuner/id490451741) | 4.8 (56) | $999.99 | Music | | [TIO-Music](https://appshunter.io/ios/app/tio-music/id6477820301) | — | Free | Music | | [Music Journal FM](https://appshunter.io/ios/app/music-journal-fm/id6742420442) | — | Free | Music | | [Chords & Scales - Pianoo](https://appshunter.io/ios/app/chords-and-scales-pianoo/id6476414349) | — | Free | Music | | [Trumpet Bingo](https://appshunter.io/ios/app/trumpet-bingo/id1560998874) | — | $1.99 | Music | ## More apps by Dr. Harald Merkel - [Helmsman's Kit](https://appshunter.io/ios/app/helmsmans-kit/id1220932986) - [Celestial Navigation](https://appshunter.io/ios/app/celestial-navigation/id1458513224) - [Pure Set](https://appshunter.io/ios/app/pure-set/id1540789538) All apps by Dr. Harald Merkel: https://appshunter.io/developer/404381431 --- *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 2026-08-08.*