# Pitchy — Pitch Class Set Toolkit > Pitch class set analysis and compositional aid for musicians. (iPhone/iPad app by Cindur.) - Source: https://appshunter.io/ios/app/pitchy/id1189850732 (this page in markdown: same URL + `.md`) - Developer: [Cindur](https://appshunter.io/developer/1170260760) - Category: Music, Education - Price: Free with in-app purchases - Rating: 4.70/5 from 15 App Store ratings · 15 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 20 MB - Languages: American English, Chinese (Simplified, China) - Released: 2017-01-04 - Data updated: 2026-06-04 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/pitchy/id1189850732/reviews.md ## What is Pitchy? Pitchy is a best-in-class Pitch Class Set analysis tool and compositional aid. Using Pitchy, you can define a Pitch Class Set, then analyze and perform various musical set theory operations on the set. Features Include: -Normal Form, Prime Form, Forte Name, and Int. Vector -12-tone Matrix Calculator -Settings tab for method of analysis (Forte or Rahn) and more. -And more! ## Key features - Pitch Class Set analysis - Normal Form, Prime Form, Forte Name - 12-tone Matrix Calculator - Compositional aid - Analysis method settings ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Purchase Premium | $1.99 | one-time | ## Recent user reviews (10 of 15) All indexed reviews: https://appshunter.io/ios/app/pitchy/id1189850732/reviews.md ### 1/5 — Fix the Retrogrades!! *2025-11-10, version 1.6.4* Retrograde and Retrograde-Inversion forms are usually labeled based on their last notes, so that they match their corresponding rows. So, if a P-0 row begins on C and ends on E-flat, then R-0 would begin on E-flat and END on C. Same labeling format for RI forms. This app is fantastic except for this one detail, but it’s a really big detail to get wrong. ### 5/5 — Cool app *2023-06-18, version 1.6.4* Really awesome app ### 5/5 — Fantastic! *2020-02-03, version 1.6.4* This app is easy to use and very helpful! It helped a lot! Would recommend to anyone in my musical classes. ### 3/5 — Buggy *2019-10-19, version 1.6.4* Impossible to switch from numbers to pitch names. Whenever one tries...the program abruptly closes! Previously this program worked well but I think it may have “suffered” an update. ### 5/5 — Saves Time *2019-08-08, version 1.6.1* A great time saver for doing pitch class work. ### 5/5 — This is going to save me a lot of time. *2019-05-26, version 1.5.1* Just what I needed for theory class. ### 5/5 — Great! *2019-04-21, version 1.5.1* This new version has improved a lot. I like it plays with sound and row labels made things more clear. ### 5/5 — Very Helpful !!!! *2019-04-07, version 1.5.1* This beats the heck out of doing 12-tone theory by hand. ### 5/5 — HUGE Help *2019-03-22, version 1.4.1* This app has been a HUGE help in Music Theory IV. The only thing I would like is for the matrix to have the labels for the rows and columns. ### 5/5 — Loading *2019-03-21, version 1.4.1* Can’t get app load. Title page flashes, then app closes Update 3/21/19 Tech support was fast and helpful. So glad to have my Pitchy back and fully functional. Thanks so much folks!!! ## Frequently asked questions about Pitchy ### What is Pitchy used for? Pitchy is a tool for analyzing pitch class sets and assisting in musical composition. It provides calculations for normal form, prime form, and Forte names, helping musicians explore musical structures. ### What musical set theory operations can Pitchy perform? Pitchy can perform operations such as calculating the Normal Form, Prime Form, Forte Name, and Interval Vector of a pitch class set. It also includes a 12-tone Matrix Calculator. ### Does Pitchy have ads? No, Pitchy does not contain advertisements. It is a free application with optional in-app purchases. ### What devices is Pitchy available on? Pitchy is available on iPhone, iPad, and iPod devices, making it accessible for a wide range of Apple users. ### How often is Pitchy updated? The latest version of Pitchy was released on October 12, 2019. While updates have not been frequent recently, the app remains functional for its intended purpose. ### What is the age rating for Pitchy? Pitchy has an age rating of 4+, making it suitable for users of all ages interested in music theory. ### Can I choose the analysis method in Pitchy? Yes, Pitchy offers a Settings tab where you can choose the method of analysis, such as Forte or Rahn, allowing for customized musical exploration. ### What is the user rating for Pitchy? Pitchy has a high user rating of 4.7 stars based on 15 ratings, indicating positive user sentiment and satisfaction with its features. ## Version history (last 5 releases) ### 1.6.4 — 2019-10-12 Bug fixes and performance improvements. ### 1.6.3 — 2019-10-08 Bug fixes and performance improvements. ### 1.6.2 — 2019-08-09 Thank you for using Pitchy! This update contains various reliability and performance improvements. Please Note - if you experience any crashes after upgrading, please delete and re-install Pitchy. Please take a moment to review Pitchy in the App Store. We love hearing your comments and suggestions, please email us at hello@pitchyapp.com Thank you! The Pitchy Team ### 1.6.1 — 2019-08-08 Miscellaneous performance and reliability updates. ### 1.6 — 2019-08-02 Thank you for using Pitchy! This is what's new: - Pitchy now supports both Chinese (simplified) and English! - Pitchy can save PC Sets for later reference. - Various reliability and performance improvements. Note - if you experience any crashes after upgrading, please delete and re-install Pitchy. Please take a moment to review Pitchy in the App Store. We love hearing your comments and suggestions, please email us at hello@pitchyapp.com ## Apps similar to Pitchy | App | Rating | Price | Category | | --- | --- | --- | --- | | [Pitchy - Sing On Pitch](https://appshunter.io/ios/app/pitchy-sing-on-pitch/id6749875369) | 4.5 (11) | Free | Music | | [Composer Lab](https://appshunter.io/ios/app/composer-lab/id6744673208) | 5.0 (2) | $17.99 | Music | | [Composers Quiz](https://appshunter.io/ios/app/composers-quiz/id1096489626) | — | $1.99 | Music | | [Intervals and Chords](https://appshunter.io/ios/app/intervals-and-chords/id6447244430) | 4.8 (10) | $5.99 | Music | | [Post-Tonal Tool Kit](https://appshunter.io/ios/app/post-tonal-tool-kit/id626579886) | 4.3 (6) | $4.99 | Music | --- *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 2026-06-04.*