Phone

Hearing Aid APP:PETRALEX 4 EAR

Medical • Algorithm electronics • ⭐ 4.50 • 1,000,000+

Hearing Aid - Hearing amplifier

Version 4.5.9 41.2 MB Everyone

Screenshots

Hearing Aid APP:PETRALEX 4 EAR screenshot

Permissions Explained 13 permissions requested View details

This app requests 13 permissions. The table below explains what each permission may allow and what users should review before installing.

Status	Permission	What it means	Why it may be used	User safety note
⚠️ Sensitive	Microphone access android.permission.RECORD_AUDIO	Allows the app to record audio from the device microphone.	Used for voice messages, calls, video chat, speech search, audio recording, or voice commands.	Sensitive permission. Only grant it to apps where microphone use is expected.
ℹ️ Review	Modify Audio Settings android.permission.MODIFY_AUDIO_SETTINGS	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Bluetooth access android.permission.BLUETOOTH	Allows the app to use Bluetooth features.	Used for headphones, controllers, wearables, cars, smart devices, nearby sharing, or accessories.	Review if the app has no obvious nearby-device or accessory feature.
✅ Common	Internet access android.permission.INTERNET	Allows the app to open network connections and communicate with online services.	Commonly used for streaming, syncing, login, ads, analytics, downloads, cloud features, and app updates.	Common permission. Review the app’s behavior if it does not appear to need online access.
ℹ️ Review	Vending Billing com.android.vending.BILLING	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
⚠️ Sensitive	Camera access android.permission.CAMERA	Allows the app to use the device camera.	Used for QR scanning, taking photos, video calls, document capture, AR features, or profile images.	Sensitive permission. Grant only when camera features are expected.
ℹ️ Review	Foreground Service android.permission.FOREGROUND_SERVICE	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Send notifications android.permission.POST_NOTIFICATIONS	Allows the app to send notifications to the device.	Used for alerts, reminders, messages, account activity, updates, or media controls.	Review notification settings if the app sends too many alerts.
✅ Common	View network status android.permission.ACCESS_NETWORK_STATE	Allows the app to check whether the device is connected to Wi-Fi, mobile data, or another network.	Often used to avoid loading content when offline or to adjust loading based on connection quality.	Generally low risk by itself.
ℹ️ Review	Finsky Permission Bind Get Install Referrer Service com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Keep device awake android.permission.WAKE_LOCK	Allows the app to prevent the device from sleeping while a task is running.	Used for media playback, downloads, navigation, alarms, calls, or long-running background tasks.	Review battery usage if the app keeps the device awake too often.
ℹ️ Review	C2dm Permission Receive com.google.android.c2dm.permission.RECEIVE	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.
ℹ️ Review	Gms Permission Ad Id com.google.android.gms.permission.AD_ID	This is an Android permission or app-specific permission requested by the app.	The app may use this permission for features related to its category, device support, background behavior, storage, connectivity, or system integration.	Review this permission before installing, especially if it does not match the app’s expected purpose.

About Hearing Aid APP:PETRALEX 4 EAR

Petralex - Personal Audio Amplifier & Sound Enhancer Petralex transforms Android smartphone into a sophisticated audio amplifier & hearing app companion. 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 audio adjustment per ear – INDIVIDUAL LEFT/RIGHT BALANCE to amplify precisely. ‣ Intelligent environment adaptation – From SILENT SPACES to BUSY AREAS. ‣ 30 dB Audio Enhancement – ⌘ FOR MINIMAL LATENCY, WIRED HEADSETS ARE SUGGESTED. ‣ Built-in audio calibration tool – CREATE YOUR PERSONALIZED SETTING in MINUTES. ‣ 4 Audio Modes – DISCOVER YOUR FAVORITE STYLE for optimal listening. ‣ Bluetooth & wired connection – NOTE: BLUETOOTH might introduce MINOR DELAY. ‣ Remote Microphone Function – TRANSFORM YOUR PHONE into a PORTABLE MICROPHONE. ‣ Live Audio Capture – MORE EASILY PERCEIVE CONVERSATIONS in YOUR SPACE with this live listen feature. # PREMIUM Upgrade (7-Day Free Trial) Access advanced audio features with: ■ Maximum Boost Setting – EXTREME AUDIO ENHANCEMENT to amplify significantly. ■ Advanced Noise Reducer – MINIMIZE AMBIENT NOISE effectively. ■ Unlimited Custom Profiles – STORE SETTINGS for EVERY SITUATION. ■ Comfort Audio Mode – SOFTER, MORE PLEASANT SOUND. ■ Advanced Dectone Technology – PRISTINE and AUTHENTIC AUDIO. ■ Voice Capture Feature – RECORD SPEECH with IMPROVED CLEARNESS. ■ Media Player with Adaptive Boost – CUSTOMIZE PLAYBACK to YOUR SETTINGS. ● NEW: Concurrent audio capture – RECORD while ENHANCING AUDIO LIVE. ● NEW: Speech-to-text conversion – RECEIVE IMMEDIATE TRANSCRIPTS of DIALOGUE. ● NEW: Playback of stored media with your PERSONAL PROFILE – COMPATIBLE with DEVICE STORAGE, DROPBOX, GOOGLE DRIVE, or WIFI SHARING. # Flexible Plans (Cancel Anytime) ◆ Weekly – NO-RISK EVALUATION PERIOD for this hearing app. ◆ Monthly – IDEAL for TEMPORARY USE. ◆ Annual – MOST ECONOMICAL CHOICE. ⌘ ADAPTING TO AUDIO ENHANCEMENT APPLICATIONS REQUIRES PATIENCE! PLEASE NOTE: Adjustment may occur over SEVERAL WEEKS. You might perceive AUDIO DETAILS PREVIOUSLY UNNOTICED – utilize the INTEGRATED NOISE REDUCER. Certain sounds could initially appear UNFAMILIAR – this SENSATION TYPICALLY FADES. FOR A SMOOTHER ADJUSTMENT, USE THE INCLUDED 4-WEEK GUIDED PROGRAM. ⌘ Important Notice: The Petralex application is an audio enhancement tool. IT IS NOT CERTIFIED AS A MEDICAL DEVICE, HEARING AID APP, OR SUPER HEARING SOLUTION. The included audio calibration tool (similar to a basic hearing test) helps create a personal audiogram for app settings ONLY. IT IS NOT A SUBSTITUTE FOR PROFESSIONAL HEARING ASSESSMENTS conducted by a qualified…

What Hearing Aid APP:PETRALEX 4 EAR Is Used For

Based on the metadata, Hearing Aid APP:PETRALEX 4 EAR appears to be a phone app for amplifying and shaping live sound. It is described as a hearing amplifier and sound enhancer, so people may use it to make speech, conversations, and other nearby audio easier to hear through a connected headset or Bluetooth device. The app also mentions left/right balance controls and personalized audio settings, which suggests it is meant for users who want more control over how sound is heard on each ear.

The permission set supports that use case: RECORD_AUDIO points to microphone-based listening, MODIFY_AUDIO_SETTINGS suggests it can adjust playback or live audio behavior, and BLUETOOTH indicates it may work with wireless audio accessories. Based on the metadata, it may also be used in quieter or noisier environments, since the description refers to noise reduction, audio modes, and live audio capture. Because it is in the Medical category, the app seems aimed at hearing support and listening assistance rather than general media playback alone.

Common uses

May amplify live audio picked up by the phone microphone
May help users hear conversations more clearly with connected headsets
Can be used to adjust left and right audio balance separately
May support personal audio profiles for different listening situations
May work with Bluetooth or wired audio accessories
May include tools for hearing-related sound testing and calibration
May also be used to boost or tailor playback of stored audio and media

Best for:

hearing support speech clarity audio amplification phone app bluetooth headset use

Related tags

App Details

Package:
com.it4you.petralex

Category:
Medical

Developer:
Algorithm electronics

Version:
4.5.9

Updated:
Mar 16, 2026

Min Android:
8.1

Age Rating:
Everyone

Contains Ads:
No

In-App Purchases:
Yes

Official Listing

Official listing available on Google Play
Package name: com.it4you.petralex
Age rating: Everyone

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How to Download Hearing Aid APP:PETRALEX 4 EAR

If this app is not hosted directly on APKApps official link, then for the safest and most up-to-date version, install it from its official Google Play listing.