Privacy, terms and support for the BoxLab loudspeaker design app.
BoxLab is a loudspeaker design calculator: enclosures (sealed, bass reflex, bandpass, passive radiator, horn), passive crossovers, 3D cabinet dimensions, SPL measurement and PDF export.
Email: ungaro444@gmail.com
Write in English or Italian. Replies usually within 2–3 working days.
When you report a problem, it helps a lot if you include:
I bought Pro and it is gone / I changed phone. Open the Pro page from the banner on the home screen and tap Restore purchases. The purchase is one-time and tied to your Apple ID (or Google account), so it restores on every device signed in with the same account. If it still does not restore, email us with the date of purchase.
The app asks for the microphone. Only when you open the SPL Meter or the Room Measurement page. The audio is processed on the device to compute sound pressure level and the 1/3-octave spectrum. Nothing is recorded, stored or transmitted. You can revoke the permission at any time in the system settings.
Do my projects leave the phone? No. BoxLab works entirely offline and stores projects on the device. There is no account, no analytics and no advertising. See the privacy policy.
The numbers do not match another program. Tell us which program and which value. Most differences come from a different alignment family, a different leakage Q (Ql), or from modelling the real driver impedance instead of an ideal resistor. We are happy to go through the formula with you.
I would like a feature / I found a wrong result. Email us. Reports with the driver’s Thiele/Small parameters attached get fixed fastest.
Purchases are handled by Apple and Google, not by us. Request a refund through the store you bought from: