Audiophilio

Audiophilio is the professional audio toolkit for the serious listener — a complete suite of measurement tools, room design, and system planning, engineered for iPhone, iPad, and Mac.

NOW IN 1.3: SYSTEM DIAGNOSIS

Run your measurements, then let Audiophilio tell you what's wrong. System Diagnosis analyzes your RT60, channel balance, distortion, polarity, impedance, and early reflection data — then ranks every issue by severity so you know exactly what to fix first, with plain-English recommendations for each finding.

On devices with Apple Intelligence (iOS 26+), on-device AI goes deeper: richer explanations and more specific guidance, generated privately without sending your data anywhere.

MEASURE

• SPL Meter — real-time sound pressure levels with A/B/C/Z weighting and peak hold
• Real-Time Analyzer — 1/3-octave spectrum analysis, live
• LUFS Meter — momentary, short-term, and integrated K-weighted loudness
• Waterfall Plot — scrolling spectrogram to spot room modes and decay
• Spectrogram — 2D frequency map for resonances and flutter echo
• Oscilloscope — live triggered waveform display
• Frequency Response & PEQ — log-sweep room and speaker measurement with up to 20 parametric EQ filter suggestions; export to REW, MiniDSP, or Equalizer APO
• RT60 Measurement — reverberation time per octave band
• Energy Time Curve — direct sound, reflections, and ITDG
• Channel Balance — L/R level and timing offset
• Impedance Analyzer — resonance sweep for Fs, port tuning, and driver behavior
• THD+N Analyzer — distortion, rattles, and buzzes via frequency sweep
• Delay Finder — speaker-to-listener delay and distance
• Polarity Checker — correct or reversed speaker wiring
• Noise Generator — white, pink, and brown noise for burn-in and acoustics

Every measurement tool shows your active input device — always know whether you're measuring with your UMIK-1 or the built-in mic.

DESIGN

• Room Designer — interactive 2D/3D room visualization with standing-wave heat maps, first reflection analysis, toe-in arcs, and room mode labels. LiDAR room scan on supported devices.
• System Builder — document your full signal chain with flow diagrams. Export your component list as forum-friendly Markdown with one tap.

CALCULATE

• Room Modes Calculator
• RT60 Calculator (Sabine formula)
• SBIR Calculator
• First Reflection Point
• Schroeder Frequency
• Crossover Calculator
• dB Converter
• Ohm's Law Calculator
• Speaker Distance Calculator
• Cartridge Resonance Calculator
• Thiele-Small Parameters

COMMUNITY

Share your system with other audiophiles, browse how others listen, and connect in the Audiophilio Facebook group.

PRICING

Free: SPL Meter, Noise Generator, all calculators, one room, one system, iCloud sync.
Premium ($44.99, one-time): everything else — all measurement tools, unlimited rooms and systems, advanced acoustic overlays, LiDAR scan, export, and System Diagnosis.

No ads, ever. No subscriptions. No tracking. Just the tools.