# pianoscope – Piano Tuner — user reviews > 83 indexed App Store user reviews of pianoscope by Frank Illenberger, rated 4.70/5 from 278 ratings. - Source: https://appshunter.io/ios/app/pianoscope-piano-tuner/id1529249459/reviews - App overview in markdown: https://appshunter.io/ios/app/pianoscope-piano-tuner/id1529249459.md - Rating breakdown: 5★ 252 · 4★ 8 · 3★ 4 · 2★ 1 · 1★ 13 ## What do users think of pianoscope? Overall sentiment: positive **Pros** - 🎯 Highly accurate tuning results - 👍 Intuitive and easy-to-use interface - 💡 Advanced inharmonicity measurement and visualization - 🎨 Clean, modern, and distraction-free design - 🔧 Multiple temperament options and customization - 📊 Helpful visual displays (strobe, line indicators, graphs) - 🚀 Fast and efficient tuning process - ⭐ Superior to competing apps (CyberTuner, Verituner) - 🎵 Produces professional-quality tunings - 💪 Reliable long-term tuning stability - 🆓 Fair free trial without requiring payment info - 👨‍💼 Excellent customer service and developer responsiveness - 🎓 Useful learning tools for aural training - 📱 Works reliably on iOS devices **Cons** - 💰 High pricing ($100-$600) perceived as expensive - 🚫 Requires paid subscription/trial to access full features - ⚠️ Confusing paywall and subscription model - 📱 iOS-only, no macOS or Windows version - 🔊 Difficulty detecting very high notes (7th octave) - 🔊 Difficulty detecting very low notes (zero octave) - ❌ Rigid pitch range restrictions for non-standard instruments - 📖 Obtuse or unclear documentation - 🌍 Pricing not adjusted for international markets/currencies - 🎛️ Missing spinner indicator (familiar UI element) - 🔍 Limited visibility of frequency display during tuning **Commonly reported bugs** - App freezes during free trial signup - Unable to cancel or disable free trial subscription - Automatic subscription enrollment not clearly communicated - Error: Unable to process request - App refuses to allow tuning of specific pitch ranges - App won't delete completely, leaving residual files - Difficulty with high note detection in certain pianos - Rigid gatekeeping prevents tuning with incomplete instrument data **Most requested features** - macOS and Windows desktop versions - Spinner indicator option for familiar interface - Frequency display visible for all notes during tuning - Installment payment plans for Pro version - Chinese language support - More flexible pitch range settings for non-standard instruments - Ability to tune with missing or broken strings - Subscription cancellation clarity and easier management - Adjusted pricing for different geographic regions - Subscription option (e.g., yearly at $150 instead of $600 lifetime) ## Newest reviews (15 of 83) ### 3/5 — Mise au diapason 435hz *2026-07-12* Bonjour, Je pense avoir rencontré un problème avec PianoScope. J’ai créé un nouveau fichier d’accord entièrement depuis zéro. Avant de commencer la pré-mesure, j’ai réglé le diapason de concert sur 435 Hz dans les paramètres de l’instrument. Après avoir effectué la pré-mesure et commencé l’accord, PianoScope indique que le La4 est parfaitement accordé (0,00 cent). Cependant, la fréquence affichée est d’environ 439,3 Hz. Pour vérifier, j’ai utilisé une autre application d’accordage (Pano Tuner), qui mesure également 439,3 Hz pour cette même note. Mes paramètres sont les suivants : * Diapason de concert : 435 Hz * Tempérament : Égal * Nouveau fichier d’accord créé après avoir réglé le diapason sur 435 Hz. Malgré cela, PianoScope semble toujours accorder le La4 autour de 439–440 Hz, alors qu’il devrait être proche de 435 Hz. Est-ce le fonctionnement normal de l’application ? Ai-je oublié un réglage particulier, ou s’agit-il d’un bug ? Je peux également vous transmettre des captures d’écran des paramètres et des mesures si cela peut vous aider à identifier le problème. Merci d’avance pour votre aide. **Developer response:** Bonjour, je pense que vous avez utilisé le mode Mise au diapason de pianoscope. Ce mode doit être utilisé lorsque vous montez ou descendez fortement la hauteur d'un instrument, par exemple de plus de 5 cents en moyenne. Dans ce mode, une fois la pré-mesure effectuée, pianoscope calcule une valeur de surcompensation spécifique pour chaque note. La surcompensation signifie que pianoscope vous fait accorder plus haut (au moyen des marqueurs de cible orange en forme de triangle) que la hauteur cible, afin de tenir compte du mouvement de la table d'harmonie et du cadre en fonte qui se produira lorsque vous accorderez les notes suivantes. Dans ce mode, vous devez accorder de façon linéaire de La0 à Do8 et accorder les unissons au fur et à mesure, car le calcul de la surcompensation repose sur cet ordre. D'après votre description, je ne peux pas déterminer si vous avez suivi cet ordre ni si vous avez accordé d'autres notes après avoir accordé le La4. La mise au diapason part du principe que l'accord des notes situées au-dessus du La4 fera redescendre la hauteur du La4 près de la hauteur cible réellement visée. Pour plus d'informations sur le mode Mise au diapason, consultez le manuel utilisateur https://www.pianoscope.app/manual4/website/en/pitch-raise-pro/basics/index.html (disponible en anglais uniquement). ### 2/5 — Très bof *2026-06-10* L’accordage fonctionne très bien sur les cordes seuls mais par contre il ne détecte pas quand il y a deux ou trois cordes donc accordage incomplet très très nul l’accordage ### 5/5 — Can’t live without it *2026-04-08* Love Pianoscope Hate the app store’s constant hectoring. ### 5/5 — Hochprofessionelle App *2026-03-05* Wechsel zu Pianoscope ---------------- Ich bin seit fast 25 Jahren Klavierstimmer. Nach mehr als 5 Jahren der Nutzung des "Verituners" habe ich "Pianoscope" ausprobiert. Im Gegensatz zur alten App, die die Inharmonizität während des Stimmvorgangs ermittelt, misst man diese zunächst ein, so dass man gleich Sprünge in Übergängen sieht. Zunächst war ich skeptisch, weil dies ein zusätzlicher Schritt scheint. Aber es zahlt sich im Nachhinein mehrfach aus. Anpassungen vor der Stimmung ---------------- Nach der Messung kann man bereits Wichtungen vornehmen und dem Kunden am Ende über die optische Anzeige zurückmelden, warum das Instrument in bestimmten Bereichen spezielle Klangcharakteristika aufweist. Als Stimmer kann man sich sogleich auf stimmliche Unzulänglichkeiten einstellen und wird nicht erst im Stimmvorgang davon "überrascht", insbesondere bei sehr kleinen Instrumenten im Übergang vom Blank- zum Bassbezug (Stichwort: Inharmonizitätssprung). Nebst unterschiedlichen Fokussierungen zu angestrebten Intervallreinheiten (z.B. Quinte, Oktave, Duodezime), welche individuell frei angepasst werden können, wird dieser Bereich durch individuelle Spreizvorlieben sowie einer Fülle an historischen Temperaturen ergänzt. Pitchraise/Vorstimmung ---------------- Die Vorstimmfunktion spielt ihre Stärken bereits ab 2 Hz Differenz aus. Diese mit anschließender Feinstimmung ist bei Klavieren auch bei weit über 10 Hz Abweichung innerhalb von gut 2 Stunden erledigt. Da ich viele Klaviere habe, die oft jahrelang vernachlässigt wurden, unterstützt mich die App, auch bei stark verstimmten Instrumenten die Besuchszeit verhältnismäßig kurz zu halten und dennoch eine stabile Stimmung zu gewährleisten, und das besser als mit meiner alten App. Sichtbarmachen der Verstimmung/Kammerton ---------------- Dem Kunden kann man zeigen, wie weit man vom Soll entfernt ist. Die schnell erstellte Ansicht hilft mir, dem Kunden das "Mysterium (Ver-)Stimmung" optisch sichtbar zu machen und gezielt über den daraus resultierenden Arbeitsaufwand aufzuklären. Es ist bei "normalen" Verstimmungen sehr hilfreich, bei der Kammerton-Optimierung einzelne "Ausreißer" zu eliminieren. Im oft unsauberen Diskant wird durch mehrere Mikrofone ein bisher nur schwer zu erzielender klarer Klang erreicht. Bedienfreundlichkeit ---------------- Die App ist wunderbar zu bedienen, intuitiv und hat eine sehr akkurate Tonhöhenerkennung. Die Freeze-Funktion ist "Gold" wert, zudem schätze ich den "Dark-Mode" sehr. Individuelle Anpassungsmöglichkeiten in der Ansicht (Menüleiste, Strobo etc.) runden die App ab. Ergänzt wird das Ganze von der Möglichkeit, Notizen zu erstellen, die mir eine Kundenhistorie erlauben. Fazit ---------------- Der Wechsel auf Pianoscope ist für mich lohnenswert und ich bin mit der App absolut zufrieden. Ich kann diese App uneingeschränkt jedem Klavierstimmer resp. Klavierbauer als Bereicherung für seine Arbeit empfehlen. Vielen Dank für die Entwicklung und stetige Verbesserung von "Pianoscope". ### 5/5 — Beats cybertuner hands down *2026-01-06, version 3.3.3* I used cybertuner for many years and made the switch to this app. I don’t know how Cybertuner is still in business when this app is light years ahead of it. So many amazing features. Very useful charts to help explain things visually to customers. The tunings come out better than other apps I have tried which has improved my listening skills. ### 5/5 — Does exactly what it says, and well *2025-12-21* I never write reviews for apps but I'm so pleased with this one that I can't not. I'll mention I don't tune pianos as a job, I just tune my own to avoid paying for someone else to. Very intuitive, very precise app. I LOVE that you can chose specific non-TET tunings; I used Young well-temperament with pure octaves and my piano is super dialed in now. The key colors are beautifully subtle yet unmistakeable. Something that would have taken years to do by ear I was able to do in just over an hour. Super stoked to have found this app. Thanks devs! ### 5/5 — 😍Amazing🎹Tuner🥳 *2025-11-29* Really love this tuner and was able to successfully a severely detuned [untuned for decade(s?)] upright I was gifted, despite it being my first time piano tuning - although I have decades of mechanical and multi-instrumental + mixing & mastering production under my belt. This app was clutch in pulling it off successfully. The pro features are amazing and I'd love to give 6+ stars for the automatically ending free trial in stark opposition to the dastardly auto-enrollment avaricious big companies do. I sincerely applaud the developer's integrity! 🙌 IMHO, the pro version is where it's at, but at 600$ it is steep and although I believe that's a fair price for how cutting edge the algorithm is, I would love to see an installment option; like if you could buy pro for a year (150$) and after 4 years that converts to the lifetime that would be awesome. I did just find out that if you buy the standard for 100$, you only pay the difference to upgrade to pro, so perhaps the pro sub works as described above? Idk I found out about the upgrade on their site forum but cannot find any info on how the sub works. Im gonna snag the standard version for now so I can tune up thru the winter seasons swings. Thanks again for making such a beautiful app. Happy playing y'all! 🎹 🎉 Love & Blessings! ❤️💛💚 **Developer response:** Thank you for your feedback. Unfortunately, the Apple App Store does not offer installment payments. So for now, you have the option to do a one-time purchase of the pro version or do a subscription. You can always upgrade from the Standard version one-time purchase to the Pro version later by just paying the price difference. ### 5/5 — Great Product *2025-11-26* I had a piano tuner here 5 times. He finally said find another piano tuner. Got another piano who tuned the piano and it was out of tune again in about 2 weeks. Finally I starting thing there must be a product that I can run from my iPad and found your product. I used it for the 14 day trial and bought it. About a year later, my piano is still in tune. The next step for me was to trash the piano until I found pianoscope. Thanks ### 5/5 — Great app without Spinner *2025-11-25, version 3.3.1* I love this program.because it is powerful, modern, clean and easy to understand. Straightforward to use. Some people dislike the whole 88 keys sampling…but that’s what I really like because the variety of the pianos. The only thing I feel lack of the spinner indicator because a lot of people come from other famous bands…if you want to attract more people you better provide them more familiar environmental interface with more neat features ….hope we may have option to pick what we favor indicator in the future ！ ### 5/5 — A Brilliant Tool For Tuners and Musicians *2025-10-27* ⭐️⭐️⭐️⭐️⭐️ Having trained in tuning pipe organs and pianos many years ago, I’ve recently returned to the craft in retirement. Pianoscope has exceeded all expectations — it’s accurate, intuitive, and thoughtfully engineered. It strikes the perfect balance between modern technology and musical artistry. For anyone passionate about tuning or simply reconnecting with the beauty of music, this app is exceptional. ### 5/5 — Отличное приложение!!! *2025-09-17* Замечательная программа!Огромное спасибо разработчику, пользуюсь уже третий год. В отличии от других подобных приложений тут очень приятный, свежий интерфейс. Можно очень гибко всё настроить, множество вариантов темпераций. Очень нравится стиль «чистые дуодецимы». На замер негармоничности уходит буквально 2-3 минуты, очень быстро и удобно. Крайне рекомендую это приложение всем профессиональным настройщикам ### 5/5 — Great App, but… *2025-09-15* I absolutely love this app! Paying for the full version is 100% worth it, especially if you run a piano tuning business. However, it would be really nice if this was available for MacOS and not just IOS, I have a work computer and have to bring my iPad with me to clients places and it would be much simpler to have it all on the computer. Other than that, it’s amazing! 🤩 **Developer response:** Actually, you can run pianoscope on Mac computers with Apple Silicon processors. This is not a configuration that I actively support, but there are some customers who are successfully working with a MacBook on instruments. ### 5/5 — Brilliant! *2025-08-23* Absolutely brilliant! Total novice here, first time tuning a piano and I have downloaded so many apps before finding pianoscope. Easy to use and so responsive! I love it and huge thumbs up to the developer, you did a brilliant job and thank you for the free trial!! I highly recommend! ### 5/5 — Works Very Well! *2025-06-28* I just finished my first tuning and it came out great. Much better than I expected for my first attempt. The inharmonicity curve that the app created for my piano seems perfect. It stretched the octaves more than they had been, and it sounds much better this way. Lovely intervals up and down the scale. Using the hammer got a little scary in one section where a few pins were tight and a little jumpy, but that went away as I moved up the scale, thank goodness. A tip for beginners: be very careful on the very high notes. This part is difficult. Keep striking the key repeatedly at a consistant volume so your phone can hear the pitch accurately. I found the strobe very useful in this section. In short, this is a very well written app. Bravo! I will definitely purchase. ### 5/5 — The best I’ve seen *2025-06-26* Extremely impressive piece of work. ## Most critical reviews (10 lowest-rated) ### 1/5 — The Mac App Is Non-Functional (Useless) *2026-08-06* Don’t waste your time with the mac app. It’s completely useless. I started the free 2 week trial, and the app literally does nothing. I noticed in the app store, it says “mac app not verified”. That’s an understatement. Why make your app available for mac when it doesn’t even work? Hello? Developer? Anyone there? ### 1/5 — 解約画面でません *2026-05-04* FaceIDで登録し１週間無料でとその後1万かかりますが、１週間以内に解約したいのにApplepayにもiPhoneの設定のサブスクにも出てきません。解約画面が出ないのは詐欺ですか？ **Developer response:** レビューをいただきありがとうございます。また、ご不安な思いをさせてしまい申し訳ございません。 まず、ご安心いただきたいのですが、料金が発生することは一切ございません。本アプリは14日間の無料お試し期間を設けておりますが、この期間は自動的に終了する仕組みとなっており、お客様側で解約のお手続きをしていただく必要はございません。サブスクリプション一覧に表示されないのは、自動継続課金ではないためです。 お試し期間終了後、引き続きご利用をご希望の場合のみ、お客様ご自身で購入手続きをしていただく形になります。何もしなければ課金されることはございませんので、どうぞご安心ください。 仕組みがわかりにくく、ご心配をおかけしましたこと、重ねてお詫び申し上げます。もしよろしければ、上記の点を踏まえて星評価のご再考をご検討いただけますと、大変ありがたく存じます。 今後ともどうぞよろしくお願いいたします。 ### 1/5 — Paywall *2026-03-21, version 3.3.3* I wish the app would be clear about its paywall. I get that it’s “professional” or whatever but at least make the actual download cost money. ### 1/5 — How to remove this app it wont go away *2025-12-16, version 3.3.2* It wont delete all files. Downloaded by accident want it removed ### 1/5 — Paywall *2025-10-09, version 3.1.1* Upon opening it forced me to accept the free trial but I can’t confirm whether or not it will charge me in the future. ### 1/5 — Слишком дорого!!!! *2025-03-28* Цена слишком завышена, даже для профессиональных настройщиков. Подумайте лучше над тем, чтобы сделать комфортную цену не только для своей страны, но и для тех кто живет в других странах, курс везде разный. К тому же приложением хотят воспользоваться не только профессиональные настройщики, большинство из которых не нуждаются в подобных приложениях, а строят в ручную. Это приложение для всех кто хочет держать свой инструмент в рабочем состоянии. Так что цена оооооооченб большая. ### 1/5 — Impossible de désactiver l’essai gratuit ! *2025-03-16* Impossible de désactiver l’essai gratuit je vais devoir opposer ma carte **Developer response:** La période d'essai gratuite de 14 jours vous donne un accès illimité à toutes les fonctions du pianoscope Standard et Pro - entièrement gratuit et sans prélèvement automatique. Elle expire automatiquement, vous n'avez donc rien à faire pour la résilier. Cela est d'ailleurs clairement expliqué dans le texte de description de la version d'essai. Veuillez reconsidérer votre évaluation par étoiles. ### 1/5 — Didn’t work *2025-03-02, version 2.7.7* Error: Unable to process request ### 1/5 — Вы с ума чтоли сошли? 50000р. *2025-02-09* За такие деньги можно пианино купить **Developer response:** Pianoscope Pro — это приложение для профессиональных настройщиков фортепиано, которое позволяет им предлагать свои услуги своим клиентам. Стандартная версия пианоскопа для пианистов стоит всего 8 990 ₽. Поэтому, пожалуйста, подумайте об изменении звездного рейтинга. ### 1/5 — Useless *2025-01-29, version 2.7.7* I couldn’t get it to work. The documentation was obtuse It had me play every key on my piano and showed me where things were on a curve, but I never could get it to analyze the and show me which way it needed tuning ## Most praised reviews (10 highest-rated) ### 5/5 — Best ETD/Tuning App available *2026-08-03* I would not be able to do my job without this app. I tune toughly 20 pianos a week and besides my tuning hammer this is the most important tool in my bag. By far the best tuning app out there, and the app keeps improving and adding features that full time techs request. 10/10 recommend this to anybody, new or professional, its features are helpful to all! ### 5/5 — Fantastic App *2026-07-18* Very accurate, easy to use. ### 5/5 — Super *2026-07-14* Das ist eins der besten Softwareentwicklung die ich kenne ### 5/5 — Works like a charm! *2026-07-06* I have only used the free trial and am still contemplating buying it, but if you want a reliable piano tuner this is it! Worked well, worked with all 88 keys and was precise! Sometimes a bit too precise… 😅 Great app! Would highly recommend! ### 5/5 — 😍Amazing🎹Tuner🥳 *2026-06-24* Really love this tuner and was able to successfully a severely detuned [untuned for decade(s?)] upright I was gifted, despite it being my first time piano tuning - although I have decades of mechanical and multi-instrumental + mixing & mastering production under my belt. This app was clutch in pulling it off successfully. The pro features are amazing and I'd love to give 6+ stars for the automatically ending free trial in stark opposition to the dastardly auto-enrollment avaricious big companies do. I sincerely applaud the developer's integrity! 🙌 IMHO, the pro version is where it's at, but at 600$ it is steep and although I believe that's a fair price for how cutting edge the algorithm is, I would love to see an installment option; like if you could buy pro for a year (150$) and after 4 years that converts to the lifetime that would be awesome. I did just find out that if you buy the standard for 100$, you only pay the difference to upgrade to pro, so perhaps the pro sub works as described above? Idk I found out about the upgrade on their site forum but cannot find any info on how the sub works. Im gonna snag the standard version for now so I can tune up thru the winter seasons swings. Thanks again for making such a beautiful app. Happy playing y'all! 🎹 🎉 Love & Blessings! ❤️💛💚 **Developer response:** Thank you for your feedback. Unfortunately, the Apple App Store does not offer installment payments. So for now, you have the option to do a one-time purchase of the pro version or do a subscription. You can always upgrade from the Standard version one-time purchase to the Pro version later by just paying the price difference. ### 5/5 — A Tuning Must-Have *2026-05-22* I have only used the 14 day free trial thus far, but it a couple of sittings my friend and I, with minimal experience, got my piano tuned beautifully!!! We tried tuning by ear, which seemed at first to work, but ultimately sounded a bit off... this gives you precise quality control, enabling you to tune down to the cent! I will say on some lower treble and bass strings the tuner jumps around quite a bit— not sure why, but I still feel it works great! I highly recommend! I have yet to purchase it... I think $100 bucks is a bit overpriced, but hey, the creator’s got to make money too, and how many people honestly purchase a tuning app? I think for me, the cost is definitely worth it— I mean, how much do piano tuners charge? I would not recommend paying all that money for the pro version... I did not see any of the pro features to be useful enough to spend that much... they are features not even professional piano tuners need. ### 5/5 — Großartige Sache! *2026-05-07* Diese App ist tatsächlich ganz großartig! Ich nutze sie sicher nur zu einem kleinen Teil aus (ich stimme professionell Cembalo, auf verschiedenen Stimmtönen und in verschiedenen Temperaturen; ich bin Dozent für historische Tasteninstrumente an Dr. Hoch‘s Konservatorium, Frankfurt). Die Einstellmöglichkeiten und Anzeigen sind sehr wertvoll für die Praxis. Funktioniert zuverlässig auch in schwierigen akustischen Umgebungen. Ganz besondere Empfehlung! ### 5/5 — andrewedel.Klavierstimmer-Klavierbauer *2026-04-30* Seit ca 40 Jahren im Gewerbe. Hab mit allen gängigen Softwares zu tun gehabt. Diese App überzeugt !!!!! vor allem sehr verlässlich auch im Konzertbereich von unschätzbaren Wert. ### 5/5 — Funktioniert sehr gut *2026-04-23* Tolle App, die auch regelmäßig geupdated wird. Natürlich braucht man schon ein bisschen Fingerspitzen Gefühl und Zeit, aber das Ergebnis kann sich wirklich hören lassen. ### 5/5 — PRO LEVEL *2026-04-08* Amazing results with this software. Thank you pianoscope!!! --- *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 2026-09-09.*