About Audiophilio
Audiophilio is a professional audio toolkit for iPhone, iPad, and Mac, designed for audiophiles, home theater enthusiasts, and anyone serious about getting the best sound from their listening space. It brings together eight precision measurement tools, a full 3D room designer with acoustic analysis, and a signal chain planner — all in a single, focused app.
The app is free to download with a one-time in-app purchase to unlock the complete premium toolset. There are no subscriptions. Your data lives on your device and in your own private iCloud — Audiophilio collects nothing.
The Story
Audiophilio was built out of frustration. The tools audiophiles actually need — an SPL meter, a real-time analyzer, a proper room designer — were scattered across a dozen different apps, most of them ugly, none of them connected. The goal was to build the app that should have existed all along: one beautiful, comprehensive toolkit built specifically for Apple devices, with the care and attention to detail that audiophiles expect from the gear on their racks.
Key Features
- SPL Meter — Real-time sound pressure level with A, B, C, and Z weighting, peak and min hold, session recording with CSV export, and level trim calibration workflow
- Real-Time Analyzer (RTA) — High-resolution 1/3-octave frequency spectrum analysis
- Oscilloscope — Live triggered waveform display with adjustable time scale (1–50 ms/div) and gain; rising zero-crossing trigger for stable periodic waveforms
- Energy Time Curve (ETC) — Room impulse response via Farina log sweep and Wiener FFT deconvolution; direct sound, ITDG, and early reflections annotated on a 0–300 ms plot
- Waterfall Plot — Time-frequency decay visualization; 31-band ISO 1/3-octave heat map
- Spectrogram — 2D real-time frequency map for spotting resonances and flutter echo
- LUFS Meter — Broadcast-standard loudness measurement per EBU R 128 / BS.1770-4; momentary, short-term, and integrated loudness with gating and true peak; streaming platform targets displayed inline
- Frequency Response — Log-sweep room and speaker magnitude curve measurement
- RT60 Measurement — Per-octave-band reverberation time via log sweep
- Channel Balance — L/R level balance and timing offset measurement
- Impedance Analyzer — Speaker impedance curve with Fs and resonance peak detection
- THD+N Analyzer — Harmonic distortion measurement via frequency sweep
- Delay Finder — Arrival time offset measurement between speakers
- Polarity Checker — Verify absolute polarity of any driver or system
- Calibrated Microphone Support — Import REW/MiniDSP calibration files; level trim workflow for device-specific offset correction
- Room Designer — Interactive 3D/2D room layout with acoustic overlays: standing-wave heat maps, first reflection analysis, toe-in arcs, room mode labels, and snap-to-grid editing. Full element library; LiDAR Room Scan on supported devices
- System Builder — Visual signal chain diagramming from source to speaker, with one-tap export as PNG, JPEG, PDF, CSV, JSON, or Markdown
- Acoustic Calculators (Free) — Room Modes, RT60, SBIR, First Reflection Point, Schroeder Frequency, Crossover, dB Converter, Ohm's Law, Cartridge Resonance, Speaker Distance
- iCloud Sync — Rooms and systems sync privately across all Apple devices via CloudKit, including background sync via silent push notifications
- Community — Optionally share room layouts and system builds with other users
Pricing
Audiophilio is free to download on the App Store. The free tier includes the SPL Meter, Noise Generator, all ten acoustic calculators (Room Modes, RT60, SBIR, First Reflection Point, Schroeder Frequency, Crossover, dB Converter, Ohm's Law, Cartridge Resonance, and Speaker Distance), one room layout, and one system build. The Premium unlock ($44.99, one-time) unlocks every measurement tool, unlimited rooms and systems, and all advanced acoustic overlays.
Privacy
Audiophilio processes microphone audio entirely on-device. No audio is ever recorded or transmitted. User-created content (room layouts, system builds) is stored locally via SwiftData and synced only to the user's own private iCloud account. Audiophilio collects no analytics, uses no third-party SDKs, and has no servers of its own.
Technical
- Built with SwiftUI, SwiftData, SceneKit, and CloudKit
- Requires iOS 18 / macOS 15 Sequoia or later
- Universal app — iPhone, iPad, and Mac (Apple Silicon)
- App Store Category: Music
- Bundle ID: io.audiophil.Audiophilio
Screenshots & Assets
App icon and high-resolution screenshots are available below. For additional assets, interview requests, or review access, contact press directly.
