Comparison

Frequency Analyzer vs eMudhra SecurePass

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

Head to head
About

Frequency Analyzer

Transform your device into a professional audio analysis tool with advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.

Highlights
  • Real-time FFT analysis
  • Calibrated SPL measurements
  • 32-bit float audio recording
  • Synchronized video recording
  • Spectrogram and octave band analysis
  • Export WAV, CSV, images, and videos
Features
Read full description

Transform your device into a professional-grade audio analysis suite with industry-leading 32-bit float processing, precision calibration tools, and comprehensive visualization capabilities. PROFESSIONAL ACOUSTIC MEASUREMENT • Real-time FFT analysis with configurable window sizes up to 4096 points • Reference SPL measurement with calibrated sound pressure level monitoring • Professional microphone correction with frequency-specific calibration curves • Reference tone calibration for precise frequency measurements • Configurable time averaging (0-1000ms) for stable, accurate readings • Industry-standard weighting filters: dBA, dBC, dBZ, and linear magnitude • Multiple window functions: Hanning, Hamming, Blackman ADVANCED VISUALIZATION MODES • High-resolution spectrum analyzer with peak detection • Real-time waveform display • Professional spectrogram • Octave band analysis • Amplitude tracking over time • Total level monitoring with min/max/average statistics POWERFUL RECORDING & ANALYSIS • High-quality 32-bit float audio recording and playback • Synchronized video recording with audio analysis overlay • Event tracking system with timestamped notes • Playback synchronization with all recorded events and measurements • Location mapping for environmental noise surveys • Export capabilities: WAV audio, CSV data, high-resolution images and videos PRECISION DECIBEL MEASUREMENT • Calibrated SPL measurements with reference level adjustment • Real-time dB monitoring with peak hold functionality • Statistical analysis: Leq, Lmax • Configurable time averaging (0-1000ms) • Frequency-weighted noise exposure calculations • Exposure calculator for NIOSH and OSHA IDEAL FOR PROFESSIONALS • Acousticians and audio engineers • Environmental noise consultants • Musicians and sound designers • Room acoustics optimization • Industrial noise monitoring • Educational and research applications • Live sound reinforcement • Building acoustics assessment Download now and unlock the full spectrum of acoustic measurement capabilities. DISCLAIMER This is a consumer application designed for general audio analysis and educational purposes. It is not a certified measurement instrument and should not be used where legally compliant or certified measurements are required. For professional acoustic assessments requiring traceable calibration or regulatory compliance, we recommend using an external calibrated measurement microphone with certified sound level meters. EULA: https://frequency-analyzer.com/terms-and-conditions/

About

eMudhra SecurePass

Features
Read full description

eMudhra Authenticator is a secure multi-factor authentication (MFA) app that protects your enterprise sign-ins and transactions. Approve logins in seconds, generate one-time passwords offline, and add a strong second factor to keep your account safe. Built for organizations using eMudhra SecurePass, the app brings multiple authentication methods together in one place. KEY FEATURES Time-based OTP (Soft Token) Generate secure, time-based one-time passwords that work even without an internet connection. Push Notification Approval Receive an instant prompt and approve or deny sign-in requests with a single tap. QR Code Sign-In Scan a QR code to authenticate quickly and securely on the web. GRID Card Authentication Respond to grid-based challenges as an additional verification factor. Biometric & PIN Protection Lock the app with Face ID, Touch ID, or a PIN so only you can access your codes.

Screenshots

Frequency Analyzer4 screens
eMudhra SecurePass4 screens

Verdict

The call

The clearest difference is in-app purchases: eMudhra SecurePass at none against Frequency Analyzer's 11. eMudhra SecurePass also leads on device support (3 vs 1) and iOS requirement (15.5 vs 17.2). On price and ads 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. Frequency Analyzer sells 11 in-app purchases, starting at $2.99 per 7 days. eMudhra SecurePass asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Frequency Analyzer versus eMudhra SecurePass: the parameters behind the verdict, then further details
ParameterFrequency AnalyzereMudhra SecurePass
PriceFreeFree
Rating4.5 (169 ratings) — better—
Positive reviews10.0% of reviews—
Number of ratings169 — better—
Update frequencyEvery 8 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.215.5 — better
Further details — not scored
Size35 MB49 MB
Age rating4+4+
DeveloperManfred KuegeleMudhra Limited

In-app purchases

11 purchases

Frequency Analyzer

Subscriptions10
  • Frequency Analyzer Pro Weekly3 Days trial$2.997 Days
  • Frequency Analyzer Pro Monthly7 Days trial$3.991 Month
  • Frequency Analyzer Pro Monthly$3.991 Month
Show 7 more
  • Frequency Analyzer Pro Monthly7 Days trial$4.991 Month
  • Frequency Analyzer Pro Monthly$4.991 Month
  • Frequency Analyzer Pro Monthly3 Days trial$4.991 Month
  • Frequency Analyzer Pro Annual7 Days trial$29.991 Year
  • Frequency Analyzer Pro Annual7 Days trial$44.991 Year
  • Frequency Analyzer Pro Annual$44.991 Year
  • Frequency Analyzer Pro Annual3 Days trial$44.991 Year
One-time1
  • Pro access for lifetime$89.99
None

eMudhra SecurePass

No in-app purchases

Questions

Is Frequency Analyzer free?
Frequency Analyzer is free to download, with in-app purchases available.
Is eMudhra SecurePass free?
eMudhra SecurePass is free to download, with no in-app purchases.
Do Frequency Analyzer or eMudhra SecurePass have ads?
Neither Frequency Analyzer nor eMudhra SecurePass shows ads.

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