Effective date: July 17, 2026
| Use case | Allowed posture | Boundary |
|---|---|---|
| Speaker checks | Compare repeatable readings. | Not a calibration certificate. |
| Room troubleshooting | Look for obvious peaks, dips, or buzzes. | Not automatic room correction. |
| Hearing safety | Use conservative levels. | Not a medical hearing test. |
Use at a safe volume
Test tones and noise can be uncomfortable or unsafe at high volume. Start low, increase gradually, and avoid prolonged exposure to loud sounds.
No professional certification
SignalProof can control digital signal parameters, but acoustic sound pressure depends on device volume, speaker, distance, room, and measurement setup. Do not use SignalProof as a legal, medical, or laboratory certification device.
Local-first behavior
SignalProof is local-first and does not require a Borealbit account or cloud sync. Any saved test context is for practical reference and should be reviewed by the user before sharing or relying on it.
SignalProof Pro purchase
See the App Store for the current download price. An optional non-consumable SignalProof Pro lifetime unlock in version 1.1.0 adds rattle retest comparisons, meter-record comparisons with CSV/PDF export, reading tags, and rattle report packages with synthesized test audio. It is a one-time purchase, not a subscription.
The localized price and availability shown in the app come from the App Store. Apple processes purchases and refund requests under the terms that apply to your App Store account and storefront. Restore Purchases is available in Settings and on the Pro paywall, and Pro access is restored only after StoreKit verifies the entitlement.
Company
SignalProof is provided by Borealbit Technology Limited. For support, contact support@borealbit.com.