Comparison

windowID vs Sound Amplifier

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

windowID

Features
Read full description

windowID is an intelligent application that transforms the way you interact with your windows. Simply scan the QR code placed on the frame to instantly access a page with complete information about the window: technical details, specifications, performance parameters, and even contact information for service or technical support. The app works with virtually any QR code - regardless of the window manufacturer. This makes it a universal tool that organizes and provides all essential data in one convenient place. Users can also create their own list of windows - a personal "portfolio" of products, eliminating the need to scan codes again. All information is always at hand and ready to use at any moment. windowID is part of the WH OKNA ecosystem, ensuring consistency, stability, and fast performance. The interface is lightweight and intuitive, and scanning is lightning‑fast.

About

Sound Amplifier

Amplify and clarify audio in real-time, turning your phone into a powerful hearing aid. Instantly replay the last 30 seconds of sound and boost volume beyond normal limits. Works with any headphones and in background mode for convenience.

Highlights
  • Real-time sound amplification
  • Instant 30-second audio replay
  • Microphone boost for distant sounds
  • Background listening mode
  • Live sound waveform visualization
  • Works with wired and wireless headphones
Features
Read full description

Turn your iPhone into a powerful Sound Amplifier & Volume Booster. Never miss a conversation again. Whether you are in a noisy restaurant, a lecture hall, or watching TV, this app amplifies sound in real-time and brings clarity directly to your headphones. EXCLUSIVE FEATURE: INSTANT REPLAY Did you miss what they just said? Don't ask them to repeat. • Tap the "Replay" button to instantly rewind the last 30 seconds of audio. • Listen again, louder and clearer. TOP FEATURES: • Sound Amplifier: Boost volume beyond normal limits for crystal clear hearing. • Microphone Boost: Uses your phone's advanced microphone to capture distant sounds. • Works with Any Headphones: Compatible with AirPods, Bluetooth headsets, and wired earbuds. • Background Mode: Continue listening even when your screen is off to save battery. • Live Waveform: See the sound visualization in real-time. PERFECT FOR: • Conversations in crowded places. • Hearing the TV without blasting the volume. • Lectures, meetings, and interviews. • Anyone needing a temporary hearing boost. SIMPLE & PRIVATE: No account required. No data collection. Just plug in your headphones and tap the Power button. COMPATIBILITY: Works best with wired headphones for zero latency. Also supports AirPods and Bluetooth devices (A2DP). Note: This app is a sound amplification tool and is not a medical device. — Subscription automatically renews unless canceled at least 24 hours before the period ends. Manage subscriptions in Settings > Apple ID. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/hearing-aid-app/accueil

Screenshots

windowID4 screens
Sound Amplifier3 screens

Verdict

The call

The clearest difference is in-app purchases: windowID at none against Sound Amplifier's 3. windowID also leads on iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sound Amplifier sells 3 in-app purchases, starting at $6.99 per 7 days. windowID asks for nothing beyond the download.

Scorecard2 real differences · 7 level
windowID versus Sound Amplifier: the parameters behind the verdict, then further details
ParameterwindowIDSound Amplifier
PriceFreeFree
Rating—4.7 (26 ratings) — better
Number of ratings—26 — better
Update frequency—Every 11 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better17.6
Further details — not scored
Size67 MB10 MB
Age rating4+12+
DeveloperWinkhaus Polska Beteiligungs spółka z o.o. sp.k.Lash Karetski

In-app purchases

None

windowID

No in-app purchases

3 purchases

Sound Amplifier

Subscriptions2
  • Weekly Premium$6.997 Days
  • Yearly Premium7 Days trial$34.991 Year
One-time1
  • Premium$14.99

Questions

Is windowID free?
windowID is free to download, with no in-app purchases.
Is Sound Amplifier free?
Sound Amplifier is free to download, with in-app purchases available.
Do windowID or Sound Amplifier have ads?
Neither windowID nor Sound Amplifier shows ads.

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