SPLnFFT and its extension SPLnWATCH 4+

You own SPLnFFT ? You own an Apple Watch ? Try SPLnWATCH !

SPLnFFT is a full featured sound level meter. Highly acclaimed worldwide (NIOSH,...). This is the main app of this bundle. But for some very specific purposes you may need the other app, available here at a discount price.
SPLnWATCH is an extension of SPLnFFT that makes it possible to connect to an Apple Watch.

Important reminder on how "Complete My Bundle" works ! : if you already own one App in the bundle, you only pay for the difference between the bundle price and the price you paid for the App you already own. But take care: if for some reason you did not pay for the App you own, or purchased it at a lower price, then the "Complete My Bundle" option may/will be more expensive than buying the other App(s) separately ! See further details here: https://support.apple.com/en-us/HT203054