Changelog

LATEST

A Guided Start & Track Sharing Restored

A welcome walkthrough gets new listeners to their first measurement in seconds, and sharing a track once again finds it across every major streaming service automatically.

• +First-launch welcome walkthrough guides you through your very first measurement with the built-in mic, so you can see how the app works right away
• +Sharing a track once again resolves automatically across Apple Music, Spotify, Tidal, Deezer, and Amazon Music

• —Stability and polish throughout

BUG FIX

Sharing Reliability

Sharing a test track keeps working even when the link resolver is unavailable.

• —When the third-party link service can't resolve a pasted link, sharing no longer stalls — enter the title and artist yourself and paste service links by hand to share right away
• —Clearer messaging when a link points to an album or playlist rather than a single track

UPDATE

System Intelligence, Smarter

Connection-aware checks, room-matched advice, cartridge/tonearm and amp/speaker matching, and affirmations for what your system already gets right.

• +Connection-aware checks — draw your connections and Audiophilio catches a turntable wired past its phono stage, or a source that bypasses your DAC
• +Room-aware suggestions — link a room to your system for advice based on room size and acoustic treatment
• +Cartridge & tonearm matching — enter cartridge compliance, cartridge weight, and tonearm effective mass to check the resonance lands in the ideal 8–12 Hz range
• +Amp & speaker impedance safety — a warning if your speakers dip below your amplifier’s minimum rated load
• +Impedance-aware headroom estimate for more accurate amp/speaker matching

• +A new “Looking Good” section confirms what your system gets right, plus an “Everything checks out” state when there are no issues
• +Each finding now shows the exact components it refers to
• +Refinements to phono-stage detection and numerous fixes

UPDATE

System Intelligence

Audiophilio now analyzes your system and tells you what to improve — right from the System Builder.

• +Tap Analyze on any system to get a prioritized read on your signal chain — a missing phono stage, speakers with no amplifier, a digital source with no DAC, a power amp with no volume control, redundant amplification, and more — each ranked critical / moderate / minor with a specific fix
• +Optional component specs (speaker impedance & sensitivity, amplifier power) unlock an amp↔speaker headroom estimate
• +A “Built-in phono stage” option for turntables and amps, so the analysis fits your exact setup
• +On devices with Apple Intelligence, an on-device AI writes a plain-English summary of your system — privately, with nothing sent anywhere

UPDATE

Ear Trainer Descriptors & a Friendlier Tools Tab

Learn what every frequency band actually sounds like, streamline the Tools tab down to the essentials, and new community safety tools across the Social features.

• +Every one of the 31 ISO 1/3-octave frequencies now comes with a plain-language description of what you hear at that range — plus a “listen for” tip pointing to a real-world sound or instrument to anchor it
• +Frequencies are color-coded by band (Sub Bass, Bass, Low Mids, High Mids, Highs, Air) so the spectrum is easier to learn at a glance
• +Descriptors appear in Reference mode as you play each tone

• +New Essentials / All filter on the Tools tab — show just the core tools most listeners reach for, or the full suite; newcomers start on Essentials

• +Report any shared track, room, system, or profile, and block users you’d rather not see — reported content is hidden immediately and reviewed within 24 hours
• +Community Guidelines with a zero-tolerance policy for objectionable content, shown before you create a profile
• +“Report a Problem” contact added in Settings

• —Room Designer: the acoustic heat map is no longer hidden beneath wall-to-wall carpet or rugs

UPDATE

Shared Test Tracks

A new community feed for the reference tracks audiophiles use to evaluate their gear — shareable across streaming services, playable right in the app, and tagged by what each track reveals.

• +Share a reference track from any service — paste a link and Audiophilio resolves it across Apple Music, Spotify, Tidal, Deezer, and Amazon Music automatically
• +Add a “what to listen for” note, an optional timestamp, and test-attribute tags (Sub-Bass, Soundstage, Imaging, Vocals, Treble, Micro-Detail, Dynamics, and more)
• +Play in the app — a 30-second preview for everyone, or the full track for Apple Music subscribers, with scrub and skip transport controls
• +Tap any service button to hand off to your streaming app of choice; optional manual Qobuz and YouTube links too

• +When several people recommend the same song, their submissions group into one card that shows how many recommend it and pools everyone’s service links and test attributes
• +Filter the feed by test attribute to find a track for exactly the thing you’re evaluating
• +The Social tab now mirrors the Tools tab, with one-line descriptions for People, Rooms, Systems, Feed, and Test Tracks

• —Fixed several rare crashes in the real-time audio tools when starting and stopping a measurement quickly
• —Hardened every microphone-based tool against audio-engine and input-format edge cases

Vinyl Tools, 3D Waterfall & Harmonic Profiling

Two new tools for turntable owners, an interactive 3D waterfall, REW measurement interchange, shelf EQ filters, per-harmonic distortion analysis, and full Dynamic Type support.

• +Tonearm geometry calculator with Baerwald (IEC), Löfgren A, and Stevenson alignment standards — enter your effective length or pick from a dozen common tonearm presets
• +Visual null-point diagram showing mounting distance, overhang, offset angle, and both null radii on a top-down record
• +Tracking-force reference by cartridge type, anti-skate guidance, and a persistent step-by-step setup checklist

• +Measures turntable speed stability from a 3150 Hz test record using FFT pitch tracking
• +Reports peak and RMS deviation with a live time-domain plot and an A–F quality grade
• +Selectable reference frequency (3150 / 1000 / 400 Hz) and measurement duration

• +Import and export REW-compatible measurement files — share measurements or overlay ones taken in Room EQ Wizard
• +High- and low-shelf filter types: the PEQ now prescribes shelves automatically where they fit best, and any band can be switched between Peak/Dip, Low Shelf, and High Shelf
• +The combined EQ correction curve is now drawn directly on the response chart

• +Waterfall plot adds an interactive 3D view (frequency × time × level) with a one-tap 2D/3D toggle
• +THD+N Analyzer now shows a per-frequency harmonic profile (H2–H8) as levels and percentages, so you can tell euphonic even-order distortion from harsh odd-order

• +Full Dynamic Type support — text scales with your preferred content size for better accessibility
• +Tools are now alphabetized within each category
• +Improved measurement accuracy, audio-engine stability, and numerous under-the-hood fixes

UPDATE

Ear Trainer & Community Discovery

Train your ears to recognize frequencies by sound, find rooms sorted by acoustic grade, and a handful of improvements throughout the community features.

• +New Ear Trainer tool in the Tools tab — a skill-building tool for learning to identify frequencies by ear
• +Reference mode (free) plays a pure sine tone for any of the 31 ISO 1/3-octave center frequencies from 20 Hz to 20 kHz, organized into five bands: Sub Bass, Bass, Low Mids, High Mids, and Highs
• +Quiz mode (Premium) presents randomized 3-choice frequency identification challenges; choose Easy (11 octave-band frequencies) or Medium (all 31 ISO 1/3-octave frequencies); your best score per difficulty is saved across sessions

• +Acoustic grade badges (A–F) now appear on every room card in Discover, computed from speaker placement, room dimensions, and RT60 estimate
• +Measurement chips on each card show the room's RT60 estimate and Schroeder frequency so you can compare rooms before opening them
• +Sort rooms by acoustic score, most recent, or most liked
• +Search rooms by name, owner, or room type
• +Filter by room type (listening room, home theater, studio, bedroom, and more) and treatment level (none, light, moderate, heavy)

• +Location field now uses a structured picker — choose your country from the full ISO list; US users are prompted for their state; city is optional free text — keeping location data consistent across the whole community

• +Clear All button in the System Diagnosis tool resets every saved measurement result so you can start a fresh baseline after making changes to your room or system

UPDATE

System Diagnosis & Export

Audiophilio now tells you what your measurements mean — ranked issues, plain-English explanations, and on-device AI interpretation for Apple Intelligence users. Plus, share your system build anywhere with one tap.

• +New System Diagnosis tool analyzes your RT60, channel balance, THD+N, ETC, polarity, and impedance measurements and ranks every issue by severity — critical, moderate, or minor
• +Each finding includes a plain-English title, a summary of what was detected, and a recommended action to fix it
• +On devices with Apple Intelligence (iOS 26+), on-device AI synthesizes your measurement data into deeper explanations and more specific recommendations — privately, without sending data anywhere
• +Coverage indicators show which measurement tools have saved results and which still need a reading, so you know when you have enough data for a meaningful diagnosis
• +Accessible directly from the top of the Tools tab

• +Copy as Markdown — export your full component list in forum-friendly format with one tap; paste directly into any audio forum, Reddit thread, or chat
• +Share button on individual systems now opens the Community publish sheet pre-populated with that system, so you don't have to navigate to the Social tab to share

• +Active mic indicator — every measurement tool now shows the name of your active input device in the toolbar, so you always know whether you're measuring with your UMIK-1 or the built-in microphone

UPDATE

Purchase Tracking & Diagram Zoom

Track what you paid for every component and cable, see your system's total value at a glance, and zoom the signal chain diagram to fit any screen.

• +Purchase price and "Purchased From" fields added to interconnects and cables — track what you spent on every wire, not just components
• +"Purchase Year" label clarified (was just "Purchased") so the field's purpose is unambiguous
• +"Purchased From" field added to audio components (retailer, marketplace, or private seller)
• +Total cost display on the system list and inside each system, summing all component and cable prices you've entered
• +Signal chain diagram now auto-fits to your screen on first load; use the −/fit/+ pill overlay to zoom in or out at any time

• +Optional total value sharing when publishing a system — choose whether to display your system's combined purchase value on your community post

BUG FIX

Bug Fixes

Polish across the measurement tools and community features.

• —ETC chart: axis labels were too small to read — increased from 8 pt to 11 pt and chart height expanded for better legibility
• —Noise Generator: audio would stop playing when navigating away from the Tools tab and returning — generator now resumes automatically on reappear
• —Delay Finder: improved accuracy guidance — help text now includes Zero calibration steps, and the consecutive-sample agreement threshold was raised to reduce false readings
• —Share button: showed as grey and bounced without explanation when no Community profile existed — now presents a clear error message prompting you to create a profile first

UPDATE

Offer Code Redemption

Unlock Audiophilio Premium directly inside the app using an offer code.

• +Offer code redemption — tap "Redeem Offer Code" in Settings → iCloud Sync, or directly from the Premium upgrade screen, to enter an Apple offer code and unlock Premium without visiting the App Store
• +Restore Purchases button added to the Premium upgrade screen for users returning on a new device

INITIAL RELEASE

Welcome to Audiophilio

The complete audiophile toolkit — measurement tools, room design, and system planning, all in one app.

• +SPL Meter with A, B, C, and Z weighting filters, peak and min hold, session recording with CSV export, and level trim calibration workflow
• +Support for calibrated external microphones via REW/MiniDSP .cal files; level trim workflow for device-specific offset correction
• +Real-Time Analyzer (RTA) with selectable octave bands and live frequency spectrum display
• +Oscilloscope — live triggered waveform display with adjustable time scale (1–50 ms/div) and gain (¼× to 4×); rising zero-crossing trigger locks the trace on periodic signals
• +Energy Time Curve (ETC) — room impulse response via Farina log sweep and Wiener FFT deconvolution; direct sound and ITDG (first reflection) 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 integrated loudness measurement per EBU R 128 / BS.1770-4; streaming platform reference targets displayed inline
• +Frequency Response & PEQ — log-sweep room and speaker magnitude curve measurement; automated parametric EQ filter suggestions (up to 20 bands) correcting toward Flat, Harman, House Curve, or a custom imported target; export filters in REW / Generic, MiniDSP biquad, or Equalizer APO format; overlay multiple saved measurements for before/after comparison
• +RT60 Measurement — per-octave-band reverberation time via log sweep
• +Channel Balance — L/R level 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

• +Interactive 3D and 2D top-down room canvas with drag-to-position elements
• +LiDAR Room Scan — automatically capture room dimensions, doors, and windows using your device's LiDAR sensor (iPhone 12 Pro and later, iPad Pro 2020 and later); choose Full Scan (room + openings) or Architecture Only mode
• +Full element library: speakers, subwoofers, tower speakers, listening chair, sofa, coffee table, bookshelf, bed, fireplace, and stairs
• +Windows and doors default to a 1-inch thickness for a cleaner, more realistic plan view
• +Acoustic Heat Map overlay showing standing wave pressure distribution
• +First Reflection Analysis showing early reflection points for each speaker
• +Toe-in Arc visualization for speaker aim and sweet spot alignment
• +Room Modes labels showing axial, tangential, and oblique mode frequencies
• +Snap-to-grid editing with configurable grid sizes
• +Live wall-distance measurements while dragging elements
• +Acoustic score badge summarizing room treatment quality
• +Room snapshot export and sharing

• +Visual signal chain diagram from sources through processing, amplification, and output
• +Export signal chain diagram as PNG, JPEG, PDF, CSV, JSON, or Markdown — tap a format and the share sheet opens immediately
• +Component library with brand, model, and notes fields
• +Diagonal arrow routing when multiple sources connect to a single destination
• +Component detail view with connection management
• +System stats bar showing component count and estimated value

• +iCloud sync for rooms and systems across all your Apple devices via CloudKit, including background sync via silent push notifications
• +Community feed to discover and share room layouts and system builds
• +Public profile with display name and avatar
• +One-tap publish and un-publish for any room or system

• +Noise Generator — white, pink, and brown noise for burn-in and acoustic testing
• +Room Modes Calculator — axial and tangential resonances from room dimensions
• +RT60 Calculator — reverberation time via Sabine formula
• +SBIR Calculator — speaker boundary interference response
• +First Reflection Point Calculator — optimal acoustic panel placement
• +Schroeder Frequency Calculator — modal vs. statistical acoustics boundary
• +Crossover Calculator, dB Converter, Ohm's Law Calculator, Cartridge Resonance, Speaker Distance Calculator

• +Universal app — iPhone, iPad, and Mac (Apple Silicon)
• +Built with SwiftUI, SwiftData, SceneKit, and CloudKit
• +No account required — sign in with your existing Apple ID for iCloud features
• +Free with one-time Premium unlock — no subscriptions, no ads