Version 1.07.3 adds a much stronger project workflow, portable project archives and several measurement-history improvements. NEW PROJECT MANAGER A new Project Manager is available from the More tab. You can now review local projects, load a project as the current working project across tabs, rename, duplicate, delete, export archives and import archives from a single place. PROJECT ARCHIVES Projects can now be exported as self-contained .wmarchive bundles containing project metadata, saved measurements, notes and available project-scoped tool state. Archives can be opened from Files, Mail, Messages, Google Drive and other document providers to launch the app and start the import workflow. Safer import/export handling has also been added. Archives are checked before sharing, and imports validate structure, manifest data, hashes, project contents and duplicate names. Imported archives default to a renamed copy so existing local projects are not overwritten. MEASUREMENT NOTES & GRAPH WINDOWS Saved measurement notes can now be edited from the session detail screen without changing the original measurement date, captured payload, measurement type, phase or calibration metadata. Live and saved Spectrogram views now support selectable 15s, 30s, 60s, 2m and 5m time windows. SPL graphs now use the same selectable live and saved graph-window controls. FIXES & REFINEMENTS • Dashboard project renaming no longer creates duplicate rows. • Current-project indicators now track project ID rather than project name. • Deleting a duplicate-named project now removes only the selected project. • 3D Spectrogram PDF reports use a taller viewport to avoid clipping. • Edited notes refresh immediately in detail views, history lists and PDF/CSV export data. • Added an in-module notice explaining that vibration readings are experimental and accelerometer-based.

Bug fixes and workflow improvements Measurement Save Snapshots: Save dialogs now capture an immutable snapshot when Save is tapped, so live readings no longer drift while notes or metadata are being entered. Upside-Down Save Sheets: Measurement save popups now follow the same 180-degree device orientation support as the main app UI. 94 dB Calibration Workflow: The calibrator now preserves the existing sensitivity offset during listening and cancel flows, and applies the calculated offset as an absolute calibration result instead of compounding the previous offset. Hardware Sample Rate Handling: Measurement DSP now rebuilds sample-rate-dependent pipelines, ring buffers, filters, scope buffers, and saved scope metadata when the audio route opens at 44.1 kHz, 96 kHz, or another non-default rate. Combined Measurement Panes: SPL A/C weighting filters are now maintained per measurement pane, preventing pane order from affecting weighted readings in multi-view mode. Measurement Thread Safety: Subscriber snapshots and vibration sample processing now avoid unsafe cross-queue state access. RT60 Reporting Accuracy: RT60 CSV, PDF, detail, and live views now use consistent octave-band labels, preserve the measured noise floor, and avoid silently dropping analyzer bands. THD+N Accuracy: THD+N is now calculated relative to the fundamental as documented. Measurement History Order: Saved measurements now display newest-first consistently. Cloud Calibration Sync: Calibration profile data comparisons now handle Data values correctly, reducing unnecessary iCloud sync churn. Subscription Entitlements: Active subscriptions are now detected from current verified transactions even if StoreKit product metadata lookup is temporarily unavailable. AbsorberKit Calculations: Helmholtz and panel absorber models were reconciled with their public calculation tests.

Version 1.06 — Acoustic Measurement Expansion SPECTROGRAM 2D and 3D Metal-accelerated visualisation of the frequency spectrum over time. Observe decay characteristics, transient resonances, and room behaviour in real time. Rotate and explore the 3D mesh view on supported devices. OSCILLOSCOPE Real-time raw audio waveform display with triggered capture mode. Automatic fundamental frequency detection identifies the dominant pitch in your signal. THD+N METER Total Harmonic Distortion plus Noise measurement module. Analyse distortion ratios from a pure sine wave signal — ideal for verifying monitor and signal chain performance. VIBRATION ANALYSIS Measure structural resonances from 0.5–50 Hz using your device's built-in accelerometer. The app identifies resonant peaks and annotates them by likely source (HVAC, building floor, motor). Reports whole-body vibration comfort ratings per ISO 2631-1. Full spectrum data now exports cleanly to CSV and renders as a bar chart in PDF measurement reports. ENHANCED NOISE CRITERIA The NC/NR view now plots the full NC curve family (NC-15 through NC-70) as background reference curves with your measured spectrum overlaid. Includes RC Mark II quality descriptors (Neutral, Rumble, Hiss) and per-band dB axis labels. IMPROVEMENTS • iPad multi-view mode now correctly restricts Spectrogram, Scope, and THD selection when in split-pane layout. • Redesigned RT60 idle-state layout with a clean card-based design and capsule status indicator. • Signal Generator routes correctly through the main speaker on all iOS devices. • Updated in-app Help Guide with full documentation for all new measurement tools.

Version 1.05 — Major UI and calculation upgrades: FITZROY RT60 & PER-SURFACE ABSORPTION Fitzroy RT60 calculations for rooms with non-uniform treatment. Assign targeted absorption materials to all six surfaces (front, back, left, right, floor, ceiling) across all design tools. ENHANCED PDF REPORTS Exports now include rendered 3D modal visualisations with improved layout and detail. UI & ACCESSIBILITY New Liquid Glass interface for AR tools. 120Hz ProMotion support. Full adaptive layouts for XXXL Dynamic Type and improved chart contrast throughout. MacOS IMPROVEMENTS Smoother window management, native print support, and standardised toolbars across the Catalyst experience. Plus engine optimisations, calculation refinements, and bug fixes throughout.