Comparison

dp SmartController vs FFT Spectrum Audio Analyzer

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

Head to head
About

dp SmartController

Features
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The dp SmartController App is a mobile smart control app specifically developed for dp UHD Media Player. It automatically scans the dp devices through a local area network and supports multi-device addition with higher flexibility for device control. It is the core tool for managing your multi-stream audio and video playback devices. Simulated Remote Control Function: Replace physical remote controls with a multifunctional control panel. It supports controlling almost all functions of the player, including Wake-On-LAN (WOL) for network-based power-on, text input, and more. You can completely eliminate the need for a physical remote. Data Browsing and Media On-Demand Function: Supports viewing and opening all local apps on the device. It allows browsing and opening media files, as well as viewing and syncing music library data from dp Music Player, including artist, album covers, and custom category browsing. It also provides regular playback controls and displays progress, file specifications, and lyrics. Additionally, it meets the need for playing high-quality lossless music without turning on the TV. Support for Video Playback Status Display: Supports selecting and playing video files from the mobile device’s file list, and displays the current video format information on the phone. It offers rich video playback control features, including progress dragging, video switching, audio track and subtitle selection, and more.

About

FFT Spectrum Audio Analyzer

Features
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FFT Spectrum Audio Analyzer transforms your device into a professional-grade audio measurement system. Whether you are calibrating home theater speakers, tuning car audio systems, analyzing room acoustics, or troubleshooting sound equipment, this app delivers the precision and features that audio professionals demand. PROFESSIONAL FFT ANALYSIS Real-time Fast Fourier Transform analysis with multiple resolution options. Choose from 4096, 8192, 16384, or 32768 point FFT sizes to balance frequency resolution and response time for your specific application. Higher FFT sizes reveal fine frequency detail while smaller sizes provide faster updates for dynamic measurements. OCTAVE-NORMALIZED DISPLAY Pink noise appears flat on the display, following the standard convention used in professional acoustics measurement. This octave normalization makes it easy to identify frequency response problems and compare measurements to industry standards. FLEXIBLE SMOOTHING OPTIONS Select the level of detail that matches your needs: - 1 Octave smoothing for quick system overview - 1/3 Octave for standard acoustic measurements - 1/6 Octave for detailed speaker analysis - 1/12 Octave for crossover tuning - 1/24 Octave for precision measurements DECAY AND AVERAGING MODES Multiple visualization modes help you capture the information you need: - Time-based decay (0.5s to 8s) for live sound analysis - Peak Hold to capture maximum levels - Running Average for stable long-term measurements MEASUREMENT TOOLS - Touch cursor for precise frequency and level readout - Peak frequency tracking with automatic detection - Pinch to zoom for detailed frequency range inspection - dB scale adjustment for optimal dynamic range display SAVE AND COMPARE Store measurements for later reference and comparison: - Save unlimited spectrum graphs with timestamps - Recall saved measurements as overlay for A/B comparison - Baseline subtraction mode shows difference from reference - Rename and organize your measurement library EXPORT AND SHARE Document and share your measurements: - Export high-resolution PNG images to Photos - Generate XLSX spreadsheet files with frequency and dB data - Share via email, messaging, or cloud storage CALIBRATION Device-specific microphone calibration ensures measurement accuracy. Adjust the calibration offset to match external reference microphones or compensate for known device characteristics. EXTERNAL MICROPHONE SUPPORT Connect professional USB or Lightning audio interfaces for improved measurement accuracy. The app automatically detects and switches to external input devices. USE CASES Home Theater Setup: Measure and balance speaker levels, identify room modes, verify subwoofer integration, and optimize crossover settings. Car Audio Tuning: Analyze frequency response at the listening position, identify resonances, and tune equalizer settings for optimal sound. Live Sound: Quick system checks, feedback identification, and real-time monitoring during performances. Studio Acoustics: Room analysis, monitor calibration, and acoustic treatment verification. Speaker Testing: Frequency response measurement, driver matching, and crossover design verification. Education: Visualize sound and frequency concepts for teaching acoustics and audio engineering. DESIGNED FOR PROFESSIONALS Clean, dark interface optimized for use in low-light environments. High contrast display with cyan spectrum trace for easy visibility. Responsive controls designed for one-handed operation. No internet connection required. All processing happens locally on your device. Your audio data stays private. Privacy Policy: https://audiomillo.com/privacy Terms of Service: https://audiomillo.com/eula

Screenshots

dp SmartController4 screens
FFT Spectrum Audio Analyzer4 screens

Verdict

The call

The clearest difference is price: dp SmartController at Free against FFT Spectrum Audio Analyzer's $6.99. dp SmartController also leads on iOS requirement (15.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

dp SmartController is free to download; FFT Spectrum Audio Analyzer costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

dp SmartController ships an update every 3 months, FFT Spectrum Audio Analyzer every 4 months. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

Scorecard2 real differences Β· 4 level
dp SmartController versus FFT Spectrum Audio Analyzer: the parameters behind the verdict, then further details
Parameterdp SmartControllerFFT Spectrum Audio Analyzer
PriceFree β€” better$6.99
Update frequencyEvery 3 months β€” betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.0 β€” better17.0
Further details β€” not scored
Size36 MB8 MB
Age rating17+4+
DeveloperDongguan Benqing Electronic Technology Co., Ltd.Yumm One

In-app purchases

None

dp SmartController

No in-app purchases

None

FFT Spectrum Audio Analyzer

No in-app purchases

Questions

Is dp SmartController free?
dp SmartController is free to download, with no in-app purchases.
Is FFT Spectrum Audio Analyzer free?
FFT Spectrum Audio Analyzer costs $6.99, with no in-app purchases.
Do dp SmartController or FFT Spectrum Audio Analyzer have ads?
Neither dp SmartController nor FFT Spectrum Audio Analyzer shows ads.
Which is updated more often, dp SmartController or FFT Spectrum Audio Analyzer?
dp SmartController ships an update every 3 months, and FFT Spectrum Audio Analyzer every 4 months. Most recently, dp SmartController was updated on October 21, 2026 and FFT Spectrum Audio Analyzer on October 20, 2026.

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