# Acoustic Pie — Acoustic calcs made easy! > Acoustic calculation tool with sound attenuation, level addition, and frequency generator. (iPhone/iPad app by Pork Pie Software Limited.) - Source: https://appshunter.io/ios/app/acoustic-pie/id1225024561 (this page in markdown: same URL + `.md`) - Developer: [Pork Pie Software Limited](https://appshunter.io/developer/1086416605) - Category: Utilities, Education - Price: $3.99 - Rating: 4.30/5 from 3 App Store ratings - Age rating: 4+ - Requires: iOS 13.0 · 3 MB - Languages: English - Released: 2017-04-11 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/acoustic-pie/id1225024561/reviews.md ## What is Acoustic Pie? Acoustic calculations made easy! As with all our Apps this App provides the underlying maths and theory behind the calculations together with worked examples. This will allow you to not just get an answer, but more more importantly, to understand how the answer was derived. Power Factor Pie is written in manner to allow you to undertake basic acoustic calculations with ease. The following four features are available within the App: Sound Attenuation - Distance to Given Sound Pressure Level Upon entering an initial Sound Pressure Level, the distance from the source it was measured at, and a lower target Sound Pressure Level, the App will calculate the distance, within a free field, that the target Sound Pressure Level will be found. Sound Attenuation - Sound Pressure Level at Given Distance Upon entering an initial Sound Pressure Level, the distance from the source it was measured at, and a second further distance, the App will calculate the Sound Pressure Level, within a free field, at the second distance. Addition of Equal Levels: Upon entering a Sound Pressure Level, in decibels, and the number of sources at the given Sound Pressure Level the App calculates the combined Sound Pressure Level together with the increase in Sound Pressure Level. Addition of Un-Equal Levels: Upon entering up to four different Sound Pressure Levels, in decibels, the App calculates the combined Sound Pressure Level. Frequency Generator: Upon entering a frequency of a sine wave, a tone, this feature calculates the corresponding period of the frequency and gives the option to play the tone via your device’s speaker. SPL Information: This feature provides the user with a list of sound pressure levels alongside a corresponding sound source to help relate a sound pressure level to a real world source. “Written by Engineers for Engineers” About Pork Pie Software: Pork Pie Software is a mobile app development company based in New Zealand. Our apps are actually written and coded by real engineers that practice in the engineering area that each app is written in. All feedback and suggestions are genuinely welcome. As we write our own apps we can quickly update and improve our apps based on your feedback. Find out more at: http://www.porkpiesoftware.com Contact us by Email: contact@porkpiesoftware.com Like us on Facebook: https://www.facebook.com/PorkPieSoftware Follow us on Twitter: https://twitter.com/PorkPieSoftware Watch us on Youtube: https://www.youtube.com/c/PorkpiesoftwareKiwi ## Key features - Sound attenuation calculations - Addition of equal sound levels - Addition of un-equal sound levels - Frequency generator with tone playback - Sound pressure level information - Worked examples and theory ## Frequently asked questions about Acoustic Pie ### What is Acoustic Pie? Acoustic Pie is a utility app designed to simplify acoustic calculations. It provides the underlying mathematics and worked examples for features like sound attenuation, level addition, and frequency generation, helping users understand how results are derived. ### What acoustic calculations can Acoustic Pie perform? Acoustic Pie can calculate sound attenuation based on distance and sound pressure level, add equal and un-equal sound levels, and generate sine wave tones with corresponding periods. It also offers information relating sound pressure levels to real-world sources. ### Does Acoustic Pie have ads? Based on the provided information, there is no mention of advertisements within Acoustic Pie. The app is a paid utility designed for focused functionality. ### How often is Acoustic Pie updated? The latest version of Acoustic Pie is 3.0.3, last updated on July 28, 2020. The developer, Pork Pie Software, indicates they can quickly update and improve apps based on user feedback. ### What devices is Acoustic Pie compatible with? Acoustic Pie is compatible with iPhone, iPad, and iPod devices. It is designed for iOS platforms. ### What is the price of Acoustic Pie? Acoustic Pie is available for a one-time purchase of $3.99. There are no in-app purchases mentioned. ### What is the age rating for Acoustic Pie? Acoustic Pie has an age rating of 4+, making it suitable for a wide range of users. This indicates it contains no mature content. ### What is the user sentiment for Acoustic Pie? Acoustic Pie has a rating of 4.3 stars from 3 ratings, suggesting a generally positive user reception. Users appreciate its utility for acoustic calculations. ## Version history (last 1 release) ### 3.0.3 — 2020-07-28 Thanks for using our Acoustic Pie app. We’re constantly improving this app in conjunction with your feedback to make this app even better. This update includes: - Minor code change to make the app more efficient. If you like the app, please leave us a review! “Written by Engineers for Engineers” ## Apps similar to Acoustic Pie | App | Rating | Price | Category | | --- | --- | --- | --- | | [WavRouter](https://appshunter.io/ios/app/wavrouter/id1179212681) | 1.7 (11) | Free | Utilities | | [ipto Analytics](https://appshunter.io/ios/app/ipto-analytics/id1553494141) | — | Free | Utilities | | [AdBlocker by C-Punks](https://appshunter.io/ios/app/adblocker-by-c-punks/id1513882925) | 3.3 (512) | Free | Utilities | | [Calculation of lighting Pro](https://appshunter.io/ios/app/calculation-of-lighting-pro/id1448371674) | — | $0.99 | Utilities | | [Compass°](https://appshunter.io/ios/app/compass/id520985073) | 4.8 (57,295) | Free | Utilities | | [SiteScape - LiDAR 3D Scanner](https://appshunter.io/ios/app/sitescape-lidar-3d-scanner/id1524700432) | 4.5 (99) | Free | Utilities | ## More apps by Pork Pie Software Limited - [Transformer Pie](https://appshunter.io/ios/app/transformer-pie/id1086416606) - [Penetration Pie](https://appshunter.io/ios/app/penetration-pie/id1108389269) - [Escalator Pie](https://appshunter.io/ios/app/escalator-pie/id1132803906) - [Lift Pie](https://appshunter.io/ios/app/lift-pie/id1192168390) - [Power Factor Pie](https://appshunter.io/ios/app/power-factor-pie/id1200023399) All apps by Pork Pie Software Limited: https://appshunter.io/developer/1086416605 --- *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.*