Subscriptions: Continuous Access to the Latest Tools and Features, Free to Try
You can download SoundMeter X for free. Standard SoundMeter functionality, including the Sound Level Meter and Noise Dosimeter, is free to use indefinitely. For access to more powerful tools and additional features, a subscription is required. You can try a subscription for free for up to 14 days.
Professional mobile sound level meter.
Perpetual License: Pay Once, Use Indefinitely
Professional mobile SLM.
No subscription required.
SoundMeter Pro 2020, which has now been replaced by the 2022 version, will continue to receive maintenance updates through 2023, after which it will continue to work indefinitely on compatible versions of iOS (iOS 12 through the latest iOS at the end of 2023).