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 a comprehensive suite of precision measurement tools, an auto-diagnosis engine, a full 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.
What's New in 1.3
Version 1.3 introduces System Diagnosis — a feature that analyzes your measurement data and tells you what's actually wrong with your system. The rule-based engine evaluates RT60, channel balance, THD+N, polarity, impedance, and early reflection data, ranking every issue by severity with plain-English recommendations. On devices with Apple Intelligence (iOS 26+), on-device AI provides deeper explanations and more specific guidance — privately, without sending data anywhere.
1.3 also adds an active microphone indicator to every measurement tool, so users always know whether they're measuring with a calibrated external mic or the device's built-in microphone, along with forum-friendly Markdown export for system builds and a streamlined community sharing flow.
Key Features
- System Diagnosis — Analyzes all saved measurement data and ranks issues by severity (critical, moderate, minor) with plain-English findings and recommended fixes. Enhanced by on-device Apple Intelligence on iOS 26+ devices.
- 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
- Frequency Response & PEQ — Log-sweep room and speaker magnitude curve with up to 20 parametric EQ filter suggestions; export to REW, MiniDSP, or Equalizer APO
- RT60 Measurement — Per-octave-band reverberation time via log sweep
- Energy Time Curve (ETC) — Room impulse response via Farina log sweep; direct sound, ITDG, and early reflections annotated on a 0–300 ms plot
- 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 and rattle detection via frequency sweep
- Delay Finder — Arrival time offset measurement between speakers
- Polarity Checker — Verify absolute polarity of any driver or system
- LUFS Meter — Broadcast-standard loudness per EBU R 128 / BS.1770-4; momentary, short-term, and integrated loudness with streaming platform targets
- Waterfall Plot — Time-frequency decay visualization; 31-band ISO 1/3-octave heat map
- Spectrogram — 2D real-time frequency map for resonances and flutter echo
- Oscilloscope — Live triggered waveform display with adjustable time scale and gain
- Active Mic Indicator — Every measurement tool displays the active input device name, distinguishing between calibrated external microphones and the built-in mic
- Calibrated Microphone Support — Import REW/MiniDSP calibration files; level trim 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. LiDAR Room Scan on supported devices
- System Builder — Visual signal chain diagramming from source to speaker; export as PNG, JPEG, PDF, CSV, JSON, or forum-friendly Markdown
- Acoustic Calculators (Free) — Room Modes, RT60, SBIR, First Reflection Point, Schroeder Frequency, Crossover, dB Converter, Ohm's Law, Cartridge Resonance, Speaker Distance, Thiele-Small Parameters
- iCloud Sync — Rooms and systems sync privately across all Apple devices via CloudKit
- Community — Share room layouts and system builds publicly; browse how other audiophiles listen. Facebook group for discussion and feedback.
Pricing
Audiophilio is free to download on the App Store. The free tier includes the SPL Meter, Noise Generator, all acoustic calculators, one room layout, one system build, and iCloud sync. The Premium unlock ($44.99, one-time) unlocks every measurement tool, System Diagnosis, unlimited rooms and systems, and all advanced acoustic overlays. No subscriptions. No recurring fees.
Privacy
Audiophilio processes microphone audio entirely on-device. No audio is ever recorded or transmitted. System Diagnosis — including any AI interpretation — runs entirely on-device using Apple Intelligence; no measurement data leaves the device. User-created content 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, AVFoundation, Accelerate, and CloudKit
- Requires iOS 18.0 / macOS 15 Sequoia or later
- Apple Intelligence features (System Diagnosis AI) require iOS 26 / macOS 26
- 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.
