Lambda 5.0.0 - App Store

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About Lambda

Musicians and Sound Engineers. Musical Notes and Frequencies and Wavelengths. Now there's an app from dgApps to convert between them all. The app features a sliding fader to dynamically change frequency, wavelength and...

Musicians and Sound Engineers. Musical Notes and Frequencies and Wavelengths. Now there's an app from dgApps to convert between them all. The app features a sliding fader to dynamically change frequency, wavelength and musical note, with locks to step through standard third octave frequencies or whole musical notes. There's a built in oscillator so you can hear the frequency, and a frequency tracker so the app can tell you the frequency. Both the oscillator and the frequency tracker display the audio waveform. A settings section allows for different tuning standards, and variations in the speed of sound. Lambda can also receive calculated Speed of Sound in Air values from another dgApps app, Cair. Lambda is now a universal app, equally at home on an iPhone as on an iPad. In Split Mode on an iPad device, side by side with Cair, the calculated Speed of Sound in Air is passed in real time to the Lambda app. Lambda allows you to share frequency/wavelength/note data via all the usual sharing methods.

Version History 5.0.0 Fully updated for iOS 26 Fully updated for iPadOS 26 5.0.0 May 1 Fully updated for iOS 15 and 16 and iPadOS 15 and 16. iOS 15.0 and iPadOS 15 and up now. Now using SwiftPackages. UI updated to work on all current devices. Audio tone generator totally rewritten from scratch using AudioKit, Swift, and SwiftUI. Audio frequency tracker totally rewritten from scratch using AudioKit, Swift, and SwiftUI. This is the first time Swift and SwiftUI has been used in an app from dgApps! The Privacy Policy is now show in the users default browser from dgapps.ie. The Harmonic table has been reworked so that the text isn't overwritten. The Questions and Comments email should now open in the users default email client. Slight tweaks to the design of the Frequency of A4 and the Speed of Sound settings. All screens now respect the users appearance settings for dark or light modes. 3.0.0 02/16/2023 This update from Apple will improve the functionality of this app. No new features are included. Better handling of the Speed of Sound in Air notifications from the Cair app. Bug fixes. 2.0.1 01/31/2017 Fully updated and rewritten for iOS 10. Now features a Frequency Tracker. Now using AudioKit. Now a universal iPhone and iPad app. Now rotates to all orientations. Now features a waveform plot for both the Oscillator and the Frequency Tracker. Now uses both imperial and metric units for both wavelength and the Speed of Sound. Can use the Speed of Sound in Air as calculated by another dgApps app Cair. The Cair calculated Speed of Sound in Air is passed in real time to the Lambda app, especially useful in Split Mode on an iPad device when Lambda is side by side with Cair. 2.0.0 01/26/2017 1.0 05/05/2011

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Previous Versions

Here you can find the changelog of Lambda since it was posted on our website on 2016-10-04 04:14:19. The latest version is 5.0.0 and it was updated on 2026-06-10 06:59:51. See below the changes in each version.

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