Comparison

Frequency Analyzer vs ParaGraph3D

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

ParaGraph3D

Features
Read full description

ParaGraph3D is a fast and visual graphing tool for exploring mathematical functions and parametric surfaces in three dimensions. Enter your equations, generate a surface instantly, and explore it from different angles. Rotate, zoom, pan, and tap to inspect 3D mathematical structures interactively. Key features: z = f(x,y) surface plotting x(t,s), y(t,s), z(t,s) parametric surfaces 44 built-in mathematical surfaces Isometric, front, side, and top views Perspective and orthographic cameras Surface, wireframe, and surface + grid modes Multiple color palettes Prism color gradient Adjustable mesh quality and opacity X, Y, and Z axes Tap-to-inspect coordinates Parameter sliders and animation Save and reuse graphs JSON import and export PNG image export Turkish and English language support iPhone and iPad support Fully on-device operation ParaGraph3D is designed for students, teachers, math enthusiasts, and anyone who wants to explore beautiful mathematical surfaces in 3D. No account required. No ads. No subscription.

Screenshots

Frequency Analyzer4 screens
ParaGraph3D4 screens

Verdict

The call

The clearest difference is price: Frequency Analyzer at Free against ParaGraph3D's $0.99. Frequency Analyzer also leads on update cadence (every 8 days vs every 9 months). ParaGraph3D's advantage is in-app purchases (none vs 11). On ads, device support and iOS requirement 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

Frequency Analyzer is free to download; ParaGraph3D costs $0.99 up front. Frequency Analyzer sells 11 in-app purchases, starting at $2.99 per 7 days. ParaGraph3D asks for nothing beyond the download.

UpkeepUpdate frequency

Frequency Analyzer ships an update every 8 days, ParaGraph3D every 9 months. The most recent releases landed on October 27, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Frequency Analyzer versus ParaGraph3D: the parameters behind the verdict, then further details
ParameterFrequency AnalyzerParaGraph3D
PriceFree — better$0.99
Rating4.5 (182 ratings) — better—
Positive reviews10.0% of reviews—
Number of ratings182 — better—
Update frequencyEvery 8 days — betterEvery 9 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.217.0 — better
Further details — not scored
Size35 MB1 MB
Age rating4+4+
DeveloperMoonbush Games & Utilities App GmbHMustafa Cans?z

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

ParaGraph3D

No in-app purchases

Questions

Is Frequency Analyzer free?
Frequency Analyzer is free to download, with in-app purchases available.
Is ParaGraph3D free?
ParaGraph3D costs $0.99, with no in-app purchases.
Do Frequency Analyzer or ParaGraph3D have ads?
Neither Frequency Analyzer nor ParaGraph3D shows ads.
Which is updated more often, Frequency Analyzer or ParaGraph3D?
Frequency Analyzer ships an update every 8 days, and ParaGraph3D every 9 months. Most recently, Frequency Analyzer was updated on October 27, 2026 and ParaGraph3D on October 12, 2026.

Other comparisons