Hear without any limits!
The application restores your sound perception to the natural level.
Now you can hear even the whispers.

Petralex Hearing aid will automatically adjust to specific features of your hearing.
Use the power of your smartphone and latest technologies for maximum sound amplification.
No registration and no advertisements.
You only need a simple headset in order to use it.

Hundreds of thousands of people have chosen Petralex to solve their hearing problems.
The application was chosen as Microsoft Inspire P2P contest winner in 2017.

-- Automatic adjustment to hearing specifics - FREE;
-- Hearing correction for each ear - FREE;
-- Adaptation to different types of environment - FREE;
-- Full acoustic amplification up to 30 dB with a wired headset - FREE;
-- Built-in hearing test - FREE;
-- Amplification of quiet sounds without losing the overall volume (dynamic compression) - FREE;
-- Using 4 options of sound amplification - FREE;
-- Speech recognition - FREE;
-- Support of Bluetooth headsets and Air Pods* - FREE.
-- Compatibility with HealthKit - your audiogram will be stored/read in -- HealthKit to enable you to control your hearing changes and will allow to provide you with customized hearing enhancement - FREE.
-- Autorun with recent settings
-- Use the headset button to control the application (push it once to turn your profile on or off, push it twice to switch the microphone)

-- “Super Boost” - powerful sound amplification – TRIAL;
-- Using the built-in 4-week adaptive course for getting used to the hearing aid - TRIAL;
-- Players with sound amplification – TRIAL;
-- Ability to create an unlimited number of profiles for different sound situations – TRIAL;
-- Regulated noise suppression – eliminates background noise, increases speech intelligibility – TRIAL;
-- Modern Dectone amplification method which amplifies even better – TRIAL;
-- Profile editing – fine adjustment of hearing aid – TRIAL;
-- Amplification formula for quiet sounds in case of tinnitus – TRIAL;
-- Additional applications with sound amplification – TRIAL;
-- Audio recorder/Dictaphone with amplification and personalization of sound to your hearing – TRIAL.

How the Subscription Works:
- Subscribers get full access to ALL FUNCTIONS OF THE APPLICATION;
- All recurring subscriptions will auto-renew unless auto-renewal is turned off at least 24 hours before the end of the current period;
- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase;
- Your subscription is for your iTunes account and can be used on your iOS device;
- Payments will be charged to your iTunes account at confirmation of purchase;
- Subscriptions cannot be cancelled during the active subscription period.

Choose from one of the following subscription options:
-- weekly subscription
-- monthly subscription
-- annual subscription

-- Adaptation to any hearing aid takes from several weeks to several months;
-- You will hear sounds and noises that you have not heard before. Use the built-in noise reduction function;
-- Some familiar sounds can acquire with metallic aftersound, which can cause temporary discomfort;


Hearing aid slows down the development of dementia by 75%.

*Using Bluetooth
NOTE! Using Bluetooth headset brings additional delay to sound transmission.
Possible echoing can appear.

The Petralex® app is not approved as a medical device or software and cannot be used as a hearing aid with doctor`s prescription.
Audiometric test provided in the application can be used only for app adjustment. Testing results are not a substitute for professional audiology tests.

Have questions, feedback or suggestions? Reach out to us at

Read more about our terms and conditions here:
- Terms of service:
- Privacy policy:

What’s New

Version 3.0.3

Improved the app stability and fixed crashes

Ratings and Reviews

4.2 out of 5
1K Ratings

1K Ratings

E g.\SaneerAmli Masoud Na ,


I’ve been having some problems hearing so out of pure curiosity I decided to see if an app out there could tell me anything. Based on the reviews I decided to give it a try, full knowing nothing replaces a Dr. After going through the test it showed a mild hearing loss. I ended up getting referred to an audiologist her results were identical, in the more detailed aspect I now need to see an ENT for possible surgery. Fluid can’t be seen behind my ears but the detailed testing shows flat for the pressure. So glad this app isn’t a gimmick it’s a handy app to track your hearing. Job well done! In addition to using the app as a hearing aid, it can also be used as a listening device!  ‍     

Developer Response ,

Hello! We are very grateful for your feedback and comments! Your kind words are the best motivation for our specialists in their complicated everyday work on the improvement of the application.

Kmccnf ,

I loved until....

When I first installed this app it was wonderful. It was a music player and hearing aid app all together. It was wonderful, I set up the profile and was able to listen to my music with the eq set up for my hearing loss. It was like rediscovering my music collection. I honestly didn’t use the actual hearing aid app because When not using headphones I had my own hearing aids. When listening I just selected the profile for the headphones I was using.

Then everything changed. In one update they separated the music player from the hearing aid app. While the music player worked with the selected profile, if I changed headphones (and yes there are difference) I had to leave the music app and open the hearing aid app to make the change. I don’t think it was intended that but the button I assumed would be for that purpose was grayed out. Not the best but sill usable. Though i would have helped if that upgrade had not wiped out my profiles. Then they did another upgrade. Great, I thought maybe they fixed that problem. Nope, it was worse. Now the music
Player would only play one song at a time. No matter what I did to the settings I could not get
to advance to the next song automatically. I finally deleted it. It was just too much trouble.

Developer Response ,

Now we are preparing to release a new version of the music player with the correction of a number of problems. Stay with us.

drfoster1999 ,


Doesn’t work with Bluetooth and that’s almost always my preference making almost impossible to use
I’m currently using a Plantronics Explorer 52. I wear many hats so I’m physically extremely active making in out of the question to wear wires. I can be somewhat certain at the end of a day my Bluetooth will still be with me but just barely. No, I cannot pass a hearing test so that even the type of Bluetooth can significantly affect my ability to do my job. Hearing aids cost 4 times more than my iPhone X and the performance difference would be like comparing a Harrier Jet to a balsa wood toy airplane So aggravating. I’ve purchased roughly $12,000 worth of hearing aids and had hell getting them to last more than 6 months. They just try to make you believe that what you paid $4000 for 6 months later is out of date. No lie, it’s pathetic

Developer Response ,

What wireless headset do you use? (manufacturer, model, type)
What is the problem?
Can you pass a hearing test?


Monthly Access
One-month access to application functionality
Free Trial

App Privacy

The developer, IT ForYou, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Health & Fitness
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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