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Questions, bug reports or ideas? We read every message and usually reply within one or two business days.
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support@gndsoft.comPlease tell us which app you're using, your phone model and system version, your headphones, and what happened. A screenshot helps a lot.
Effa · Common questions
›Is Effa a medical device?
No. Effa is a hearing check for reference only and does not replace an examination by an ENT doctor or audiologist. If your hearing changes suddenly, or you have ear pain, dizziness or ringing that doesn't go away, see a doctor promptly.
›What do I need?
Your phone, headphones or earphones (wired, Bluetooth or bone-conduction) and a quiet room. Without headphones, you can still do a simple check through the phone's earpiece.
›How accurate are the results?
Effa estimates the quietest sound you can hear at each pitch. Every headphone model sounds a little different, so results depend on your headphones, volume and surroundings. Anonymous results shared by users help us build correction profiles for popular models, which makes checks with those models more accurate.
›Does Effa record me through the microphone?
No. Effa uses the microphone only to measure how loud the background noise is. Nothing is recorded, saved or sent.
›What leaves my phone?
Nothing, unless you choose to share. If you're 16 or older and turn on anonymous sharing, your results are uploaded without your name, email or advertising ID. The Privacy Policy lists everything that is shared.
›How do I delete my data?
Open Settings in Effa and tap Delete my data. It removes every result from your phone and from our server. You can also delete a single result from your history.
›Is Effa free?
Yes. Effa is free, has no ads and doesn't need an account.
App policies
Effa