Sound pressure varies
Measured dBSPL depends on volume, speaker, distance, room, and meter settings.
Support
SignalProof Support
Send setup questions, bug reports, launch questions, or privacy requests to Borealbit support.
support@borealbit.com
Include your iPhone model, iOS version, SignalProof version, signal mode, output level, and the measurement setup you were using.
Official download
SignalProof: Tone Generator on the App Store
Use this query-free App Store product page when you need the official listing, version history, localized price, or purchase support.
Useful details
Send the setup, not only the symptom.
iPhone model and iOS version
Signal mode and output level
Frequency, sweep range, or noise type
Speaker route and system volume
Distance from source to meter
Meter app, weighting, and time setting
Before writing
Use conservative levels
Start low, especially with sine tones and sweeps, then increase only when necessary.
Keep context
Useful reports include frequency, level, signal type, distance, room state, and meter settings.
Restore SignalProof Pro
Use Restore Purchases in Settings or on the Pro paywall. If access does not return, include the App Store account region and any on-screen error in your support email, but never send your password.