HEARING AID APP:PETRALEX 4 EAR

In-app purchases
4.0
14.7K reviews
1M+
Downloads
Content rating
PEGI 3
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About this app

"Petralex turns Android smartphone into a HEARING AID app & AUDIO AMPLIFIER. The Petralex listening device automatically adjusts to your unique hearing. Enjoy MUSIC BOOST with 3x AMPLIFIER, personalized settings, clear sound, noise reducer & built-in hearing test. Petralex — advanced SUPER HEARING app.

# Key Benefits

● Personalized Sound – Adapts to your unique audiogram or hearing profile.
● Award-Winning Tech – Microsoft Inspire P2P Winner (2017).
● No Ads, No Sign-Up – Just plug in and enjoy improved clarity.
● Trusted by 4.000.000+ Users – Join a GLOBAL COMMUNITY focused on better listening.

# FREE Features You’ll Love

‣ Custom amplification for each side – LEFT/RIGHT BALANCE CONTROL.
‣ Smart environment adaptation – From QUIET ROOMS to CROWDED STREETS.
‣ 30 dB Boost – ⌘ WIRED HEADSET RECOMMENDED for ZERO LAG.
‣ Built-in hearing test – YOUR PERSONALIZED AUDIOGRAM in MINUTES.
‣ 4 Sound Modes – FIND YOUR PREFERRED STYLE.
‣ Bluetooth & wired support – NOTE: BLUETOOTH may add SLIGHT DELAY.
‣ Remote Mic Mode – USE YOUR PHONE as a WIRELESS MICROPHONE.
‣ Live Listen – PICK UP CONVERSATIONS across the room EFFORTLESSLY.

# PREMIUM Upgrade (7-Day Free Trial)

Unlock next-level performance with:
■ Super Boost Mode – ULTRA-POWERFUL ENHANCEMENT.
■ Noise Suppression – REDUCE BACKGROUND CHATTER.
■ Unlimited Sound Profiles – SAVE SETTINGS for DIFFERENT ENVIRONMENTS.
■ Tinnitus-Friendly Mode – GENTLE, COMFORTABLE SOUND.
■ Advanced Dectone Tech – CLEAR and NATURAL AUDIO.
■ Audio Recorder – CAPTURE VOICES with OPTIMIZED CLARITY.
■ Music Player with Smart Boost – TAILOR PLAYBACK TO YOUR PROFILE.

● NEW: Live audio recording – CAPTURE SOUND while AMPLIFYING in REAL-TIME.
● NEW: Audio transcription – GET INSTANT TEXT VERSIONS of SPOKEN CONTENT.
● NEW: Play stored music using your CUSTOM SOUND PROFILE – WORKS with LOCAL FILES, DROPBOX, GOOGLE DRIVE, or WIFI TRANSFERS.

# Flexible Plans (Cancel Anytime)

◆ Weekly – RISK-FREE TRIAL.
◆ Monthly – GREAT for SHORT-TERM USE.
◆ Annual – BEST VALUE.

⌘ IT TAKES TIME TO GET USED TO ANY HEARING APP! BE READY FOR:

* Adaptation takes SEVERAL WEEKS TO MONTHS.
* You will hear SOUNDS YOU HAVE NOT HEARD BEFORE – use the BUILT-IN NOISE REDUCTION.
* Some familiar sounds may SEEM METALLIC – this DISAPPEARS WITH TIME.

USE THE BUILT-IN 4-WEEK ADAPTIVE COURSE FOR A COMFORTABLE TRANSITION.

⌘ Disclaimer:
The Petralex Hörgeräte App® is NOT APPROVED as a MEDICAL DEVICE.
The hearing test provided is ONLY for APP ADJUSTMENT and DOES NOT REPLACE PROFESSIONAL AUDIOLOGY TESTS (ENT consultation required).
The Service includes a FREE 7-DAY TRIAL — ENOUGH TIME to decide whether to CONTINUE or STOP using the app. Refunds AFTER this period are NOT available.

Questions, feedback or suggestions? Contact us: [[email protected]](mailto:[email protected])

More about our terms:
Terms of service: petralex.pro/page/terms
Privacy policy: petralex.pro/page/policy

◆ EXPERIENCE LIFE IN FULL DETAIL – TRY PETRALEX TODAY!
Updated on
Oct 1, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity and Device or other IDs
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

4.0
14.4K reviews
A Google user
February 17, 2019
I have otosclerosis with tinnitus. This app works better than any real hearing aid device that I've used. Using the microphone on the phone, rather than the headset, is genius. The phone then becomes a remote mic that, for example, I can place in the center of the boardroom table during meetings. The slight audio delay is mildly disconcerting, but not enough to lose a star!
282 people found this review helpful
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Status: “Rippingall”
May 5, 2024
It's probably a good app and service. The other reviews are very positive. However we never got to a proper subscription as this felt too intrusive. Make a annual payment? The agreement is now valid for 10 years. One of the other options went through Google pay and wanted pictures of cards. Regardless of how normal or standard that may be, we will never do that. So as much as this should take care of your need, consider whether you don't mind this intrusion.
7 people found this review helpful
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A Google user
September 21, 2018
It used to work quite well, and now I can't even use noise suppression, even with a subscription. Also, when I attempted to use the volume controls on my phone, it plays this loud voice telling me that my volume is dangerously low, and subsequently adjusts it back up to maximum. Once a great app, now spoiled completely. I'm very disappointed.
48 people found this review helpful
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Algorithm electronics
September 24, 2018
Hello In the new version, we simply divided the gain and volume controls. Now, gain control is only available when the maximum volume is set.

What’s new

Improved the app stability and fixed crashes
Keep your feedback coming! Write us at [email protected] and one of our friendly bunch will get back to you