Frequency Analyzer vs Frequency Counter Hz Tuner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
Frequency Counter Hz Tuner
This app transforms your iPhone into a powerful audio analyzer. It offers four distinct modes to measure sound frequencies, tune instruments, analyze motor speeds, and check mains stability. Advanced features include measurement history, comparison tools, and CSV export.
- Dominant frequency measurement (Hz)
- Instrument tuning with note and pitch display
- Motor RPM analysis
- 50/60 Hz mains hum detection
- Measurement history and trend charts
- CSV export of measurements
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Frequency Counter Hz Tuner combines guided instrument tuning with a microphone-based Hz meter, measurement history, tone tools, and an ultrasonic scanner. Use the new guided flow to tune a guitar or ukulele one string at a time, or open the meter when you want to inspect the dominant frequency in a sound. GUIDED GUITAR AND UKULELE TUNING Choose guitar or ukulele and work through the strings in order. The guide listens to each string separately. When fresh readings stay within ±5 cents long enough to meet the stability check, the Confirm button becomes available. Tap it to save that string as verified. Each confirmed string records the observed Hz value, cents offset, and verification time. If you stop before finishing, the app saves the partial session and can offer to continue it after relaunch. INSTRUMENT TUNER The tuner includes standard string targets for guitar, bass, ukulele, and violin. Adjust the A4 reference when your tuning setup calls for a different reference. Guided string-by-string sessions are available for guitar and ukulele; the other instrument targets remain available in the regular tuner. DOMINANT FREQUENCY METER Use the microphone to view the dominant frequency of a sound in Hz. Select Auto, Music, Motor, or Hum mode to match the kind of reading you want to inspect. The meter and tuner provide distinct views, so you can move between a general Hz reading and instrument-focused pitch information without leaving the app. MEASUREMENT HISTORY Keep up to 500 measurement records for later reference. Add a note to identify a sound or session, and mark useful records as favorites. The history screen makes it easier to return to selected readings instead of relying on memory or separate notes. TONE AND SWEEP TOOLS Generate sine, square, triangle, or sawtooth waves from 20 Hz to 20 kHz. Use a steady tone when you need one frequency, or use sweep mode to move through a range. These controls are grouped in the Tone screen and can support listening, instrument, and audio experiments. ULTRASONIC SCANNER Scan the 17–24 kHz band, view the detected peak and a source hint, and review the recent detection log. Microphone response differs by device, especially at high frequencies, so the scanner does not promise that every phone can cover the entire band. A PRACTICAL MULTI-TOOL FOR SOUND • Tune guitar or ukulele with a guided string sequence • Continue a saved partial tuning session after relaunch • Use standard targets for guitar, bass, ukulele, and violin • Read dominant sound frequency in Hz through the microphone • Choose Auto, Music, Motor, or Hum meter modes • Keep measurement records with notes and favorites • Generate four waveform types in tone or sweep mode • Inspect peaks and recent events in the ultrasonic band Microphone permission is required for listening features. Readings and high-frequency coverage depend on the microphone, device hardware, the sound source, and the surrounding environment. The app is designed as an audio measurement, listening, and instrument-tuning aid.
Screenshots
Verdict
The clearest difference is rating: Frequency Analyzer at 4.5 against Frequency Counter Hz Tuner's 3.3. Frequency Analyzer also leads on ads (none vs shown) and ratings volume (179 vs 6). Frequency Counter Hz Tuner's advantage is in-app purchases (none vs 11). On price, update cadence, 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
Both are free to download. Frequency Analyzer sells 11 in-app purchases, starting at $2.99 per 7 days. Frequency Counter Hz Tuner asks for nothing beyond the download.
Frequency Analyzer holds the better App Store score, 4.5 against 3.3. That said, the two scores are not equally well evidenced: Frequency Analyzer has 179 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 10% of Frequency Analyzer's written reviews are positive against 0% of Frequency Counter Hz Tuner's.
Frequency Analyzer ships an update every 8 days, Frequency Counter Hz Tuner every 4 days. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.
| Parameter | Frequency Analyzer | Frequency Counter Hz Tuner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (179 ratings) — better | 3.3 (6 ratings) |
| Positive reviews | 10.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 179 — better | 6 |
| Update frequency | Every 8 days | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone | iPhone |
| Requires iOS | 17.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 69 MB |
| Age rating | 4+ | 17+ |
| Developer | Manfred Kuegel | Kyu-Hee Jang |
Customer experience
Frequency Analyzer
Frequency Counter Hz Tuner
In-app purchases
Frequency Analyzer
- 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
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- 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
- Pro access for lifetime$89.99
Frequency Counter Hz Tuner
No in-app purchases
Questions
Is Frequency Analyzer free?
Is Frequency Counter Hz Tuner free?
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