Transform your smartphone into a sophisticated audio amplifier & hearing app companion. Make hearing better. No hearing aids needed. Works with any earphones.
Treating hearing loss may help protect long-term brain health. According to the ACHIEVE randomized trial, co-led by Johns Hopkins and published in The Lancet in 2023, hearing intervention slowed cognitive decline by 48% over three years in older adults already at higher risk. The study followed nearly 1,000 adults ages 70–84 with untreated hearing loss. Getting hearing help earlier — even with a smartphone hearing aid app — may matter for long-term brain health.
According to the National Institute on Deafness (NIDCD), only about 16% of adults ages 20–69 who could benefit from hearing aids have ever used them. The American Speech-Language-Hearing Association (ASHA) reports that only 20% of people who could benefit from hearing support actually seek help. A phone-based sound amplifier or hearing aid app can be a simpler, more private first step.
The World Health Organization (WHO) reports that more than 25% of adults over 60 are affected by disabling hearing loss. WHO emphasizes early identification and the use of technology-based tools for hearing support and screening. No need to wait for an appointment or spend thousands — download the hearing app, put on your headphones, and start hearing more clearly in minutes.
"Now my dad can finally hear me again. Conversations with him are just like I used to remember some years back. You gave our father and son some bonding time back. God Bless you all!"
"I have otosclerosis with tinnitus. This app works better than any real hearing aid device that I've used. Using the phone as a remote microphone that I can place in the center of the boardroom table during meetings — genius."
"Works great. Almost as good as a real hearing aid. Unlike other apps, you can still use your iPhone and other apps while the hearing amplifier runs in the background."
Traditional hearing aids cost thousands — and that's before batteries, cleaning, and repairs. Petralex runs on the phone you already own.
Answer 6 short questions to see whether Petralex may support your listening comfort in daily life. No medical assessment — just everyday situations.
Question 1 of 6
This check is for informational purposes only and is not a medical assessment. If you have concerns about your hearing, please consult a healthcare professional.
No registration. No ads. Just plug in your headset and amplify sound in seconds. Join 5 million+ users who already hear better every day.