Comparison

DualTimer vs Frequency Analyzer

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

Head to head
About

DualTimer

Features
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Dual timer is purpose built dual count up timer, somewhat like a chess timer. This could be used to track the time each person speaks in a 2-way conversation, or time take for turns in a game, for example. While the timer is running, one or the other of the timers (indicated by a green dot) counts up in tenths of a second.

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/

Screenshots

DualTimer1 screens
Frequency Analyzer4 screens

Verdict

The call

The clearest difference is price: Frequency Analyzer at Free against DualTimer's $1.99. Frequency Analyzer also leads on update cadence (every 8 days vs every 19 months). DualTimer's advantage is in-app purchases (none vs 11) and device support (4 vs 1). On 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

Frequency Analyzer is free to download; DualTimer costs $1.99 up front. Frequency Analyzer sells 11 in-app purchases, starting at $2.99 per 7 days. DualTimer asks for nothing beyond the download.

UpkeepUpdate frequency

DualTimer ships an update every 19 months, Frequency Analyzer every 8 days. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 5 level
DualTimer versus Frequency Analyzer: the parameters behind the verdict, then further details
ParameterDualTimerFrequency Analyzer
Price$1.99Free — better
Rating—4.5 (169 ratings) — better
Positive reviews—10.0% of reviews
Number of ratings—169 — better
Update frequencyEvery 19 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS13.0 — better17.2
Further details — not scored
Size4 MB35 MB
Age rating4+4+
DeveloperGreat Apptitude Pty LtdManfred Kuegel

In-app purchases

None

DualTimer

No 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

Questions

Is DualTimer free?
DualTimer costs $1.99, with no in-app purchases.
Is Frequency Analyzer free?
Frequency Analyzer is free to download, with in-app purchases available.
Do DualTimer or Frequency Analyzer have ads?
Neither DualTimer nor Frequency Analyzer shows ads.
Which is updated more often, DualTimer or Frequency Analyzer?
DualTimer ships an update every 19 months, and Frequency Analyzer every 8 days. Most recently, DualTimer was updated on October 2, 2026 and Frequency Analyzer on October 12, 2026.

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