OCTAV — SPL Meter, RTA, Tuner
Built for Live Sound Engineers
About
This app provides a suite of audio analysis tools for sound engineers, including a calibrated SPL meter, RTA, and tuners. It offers features for live sound work, instrument tuning, and system checks, with advanced functions available via subscription.
What's New in OCTAV
1.1.1
October 15, 2026
No feature changes in this update — this build keeps OCTAV ready for the iPhone Duo, with layouts that follow the open or folded screen. The SPL meter, tuners and tone generator remain free, always.
MoreSubscriptions & In-App Purchases
OCTAV Pro Annual
Every OCTAV tool, with a 3-day free trial.
FAQ
What is OCTAV?
OCTAV is a comprehensive audio analysis application designed for sound engineers. It includes a calibrated SPL meter, a 31-band RTA, chromatic and drum tuners, and tone/noise generators, all running locally on your device.
What features are free in OCTAV?
The SPL meter, chromatic tuner, and tone/noise generator are permanently free and unlocked. These core functionalities are available without any paywall, ensuring essential tools are accessible to all users.
What does OCTAV Pro unlock?
OCTAV Pro unlocks advanced features such as the 31-band RTA with feedback finder, drum lug matching, 4K cymatics export, Show Mode, the soundcheck library, and multiple saved shows. These professional-grade tools are essential for in-depth audio work.
How much does OCTAV Pro cost?
OCTAV Pro is available as an auto-renewing subscription at $8.79 per month or $39.99 per year. A 3-day free trial is offered for the annual plan, allowing you to experience the pro features before committing.
How do I cancel my OCTAV Pro subscription?
You can manage or cancel your OCTAV Pro subscription at any time through your Apple ID settings. Cancellation must be done at least 24 hours before the end of the current subscription period to avoid further charges.
Does OCTAV collect user data?
No, OCTAV is designed with privacy in mind. There is no account, login, analytics, or tracking; all processing runs on-device. Optional private iCloud sync is available but remains off unless explicitly enabled by the user.
What devices does OCTAV support?
OCTAV is supported on iPhone and iPad devices. Its interface is designed as a dark instrument panel, with an optional amber palette for working in low-light venues.
How often is OCTAV updated?
OCTAV was last updated on August 25, 2026, with version 1.0. While this indicates a recent release, future update frequency is not specified in the provided data.
