Petralex is a mobile hearing aid and audio amplification app for adults with mild to moderate hearing loss, available on iOS and Android.
Product velocity
Maintenance
Daily rank 🇺🇸
#56
Medical · grossing
Sentiment
4.5
18k reviews
Nemesis
myPhonak
The App DNA
What makes this app unique?
It removes the financial friction of clinical hearing aids by using existing smartphone hardware to provide personalized sound enhancement.
For Adults experiencing mild to moderate hearing impairment seeking an accessible, phone-based alternative to traditional medical hearing aids.
What does it look like?
Key features
Built-in hearing test generates a custom audio profile to adjust frequency amplification per ear.
Real-time speech-to-text conversion for conversations and lectures.
Amplifies sound up to 1000% using standard headphones.
How much does it cost?
Freemium model uses a 7-day free trial to gate advanced features like Super Boost and noise suppression.
Velocity
Maintenance developmentaccessibilityUX improvementsShow more...
The app currently operates at a maintenance cadence, with only two releases identified over the last six months. The latest release occurred 135 days ago, indicating a significant gap in development activity. Recent updates have focused on accessibility and audio processing features, but the lack of consistent, frequent releases suggests a focus on stability rather than active feature expansion. Development appears stable but slow, with no evidence of a live-ops strategy.
Who built it?
Hearing Aid App Solutions
11 apps tracked · Medical
b Buds+ HEADPHONES CONNECT
EAR SPY: Listening Device
Listening Device – Hearing Aid
Low FODMAP Diet: IBS tracker
BABY MONITOR App: Nanny Cam
Sound Amplifier & Hearing Aid
STETHOSCOPE, TELEMED, MHEALTH
Volume Control Sound Amplifier
Video Volume Booster
Hearing Test: Live AudiogramUser Sentiment
What do users think recently?
Recent user voice shows an excited sentiment. Users appreciate the built-in hearing test and adjustment features provide significant value for users with mild hearing loss and the app offers a functional and accessible hearing aid alternative for users without a high financial barrier, but report audio processing latency and distorted sound quality create an unusable experience for many users post-update.
How are ratings & reviews evolving?
Weekly average review rating
What users say, by theme
- The built-in hearing test and adjustment features provide significant value for users with mild hearing loss
- The app offers a functional and accessible hearing aid alternative for users without a high financial barrier
- Extensive adaptation guides and instructional videos help new users navigate the complex setup process
- Audio processing latency and distorted sound quality create an unusable experience for many users post-update
120 of 519 recent reviews analyzed · high confidence · Excited overall
Read the full review analysisUnlock 2 more frustration themes and 2 user requests, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for HEARING AID APP - Live Listen
How's the Medical market?
Petralex holds a #42 Grossing rank in the US Medical category, signaling strong monetization despite the app's software-only limitation. The gap between its discovery reach and the high-latency complaints suggests that current growth is driven by accessibility rather than performance parity with clinical rivals.
Read the market outlookThe rivals identified
By Sonova AG
Dominates the hearing aid niche with massive user scale and deep integration with proprietary hardware, creating a high barrier to entry.
- Provides direct hardware-level control for Phonak hearing aids, which this app cannot replicate.
- Maintains a high-frequency release cadence of 4 updates in six months to ensure hardware compatibility.
- Leverages a massive user base to refine proprietary sound processing algorithms through real-world usage data.
Unlock the head-to-head verdict: where this rival wins, and where it loses.
Access the full report for freeThe Analyst's Read
Key takeaways for HEARING AID APP - Live Listen
Where is it heading?
The hearing enhancement market is shifting toward hardware-integrated clinical solutions, leaving standalone apps like Petralex exposed to performance-based churn. Unless the latest audio processing regressions are resolved, the app will continue to lose its casual user base to more stable, hardware-integrated competitors.
- Audio processing regressions post-update cause garbled sound, which erodes the daily active habit and drives negative sentiment.
- Users report: Deceptive monetization complaints regarding the trial-to-paid transition increase refund pressure, threatening the long-term viability of the subscription model.
The SWOT
- Personalized audiogram calibration creates high switching costs
- 4-week guided program manages user adaptation to reduce churn
- Native Bluetooth microphone support addresses top user request
- Granular volume balancing for asymmetric hearing loss
Next best moves
Rebuild audio processing engine because latency is the #1 complaint post-update → stabilize retention
+ 1 more prioritized moveThe counter-intuitive read
The app's software-only design is its greatest asset in the casual market…
Read the full takeFeature gaps
Native Bluetooth microphone support (available in hardware-linked rivals but absent here)
Since the last report: Technical regressions in audio processing have triggered a decline in user sentiment and forced a pivot from feature expansion to maintenance. The app's rating dropped from 4.52 to 4.15 as users reported audio distortion and frustration with the trial-to-paid subscription flow.
Bottom line
The app's value rests on its personalized audiogram tool, but technical regressions in audio processing are eroding the trust required for a medical-category app. Stabilizing audio latency is the only way to protect the revenue funnel from hardware-linked rivals.
Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeSources
- [1] Play Store, source
Report last updated