Frequency Analyzer vs FlexiGas
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 real-time FFT, SPL monitoring, and advanced visualization. Record, analyze, and export high-quality audio and video data for various acoustic applications.
- Real-time FFT analysis
- Calibrated SPL measurement
- High-resolution spectrum analyzer
- Real-time waveform display
- 32-bit float audio recording
- Synchronized video recording
- Export WAV, CSV, images, and videos
Read full descriptionHide 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/
FlexiGas
Read full descriptionHide full description
FlexiGas makes managing your home gas effortless. Order cylinder refills or schedule automatic deliveries in seconds, pay securely using saved cards or mobile wallets, and get timely reminders so you never run out. Track your gas usage with intuitive visuals and usage history, receive real-time delivery updates, and access exclusive offers and credits. Built-in KYC and secure account management keep your information safe, while our support team is available through the app for any questions. Whether you need a one-off refill or a recurring delivery plan, FlexiGas delivers convenience, transparency, and peace of mind — all from your phone. Key Features Easy Ordering: Schedule or place one-time refills in seconds. Auto-Refill: Set recurring deliveries so you never run out. Secure Payments: Save cards and use mobile wallets with encryption. Usage Insights: Visual gas-level and consumption charts. Delivery Tracking: Real-time status and ETA for each order. Order History: View receipts, invoices, and past deliveries. Notifications: Refill reminders, promos, and delivery alerts. Support: In-app help and customer service.
Screenshots
Verdict
The clearest difference is in-app purchases: FlexiGas at none against Frequency Analyzer's 10. FlexiGas also leads on iOS requirement (15.1 vs 17.2). On price, update cadence, 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
Both are free to download. Frequency Analyzer sells 10 in-app purchases, starting at $2.99 per 7 days. FlexiGas asks for nothing beyond the download.
Frequency Analyzer ships an update weekly, FlexiGas every 10 days. The most recent releases landed on November 4, 2026 and October 24, 2026 respectively.
| Parameter | Frequency Analyzer | FlexiGas |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (187 ratings) — better | — |
| Positive reviews | 9.1% of reviews | — |
| Number of ratings | 187 — better | — |
| Update frequency | Weekly — better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.2 | 15.1 — better |
| Further details — not scored | ||
| Size | 35 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Manfred Kuegel | FLEXIGAS LIMITED |
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 Monthly7 Days trial$4.991 Month
Show 6 moreShow fewer
- 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
FlexiGas
No in-app purchases
Questions
Is Frequency Analyzer free?
Is FlexiGas free?
Do Frequency Analyzer or FlexiGas have ads?
Which is updated more often, Frequency Analyzer or FlexiGas?
Other comparisons















