What's New • Optimized for iPhone Duo: every tool now uses the full outer and inner displays • Your tool keeps its state when you fold, unfold or rotate the phone — the tone generator keeps playing and TEMPO and CALC keep their values • Compact layouts for short screens (iPhone SE and the iPhone Duo outer display) so every button stays in reach

What's New CALC — Completely Redesigned • New home screen: all calculators organized into category cards — everything at a glance • Favorites folder: star any calculator and reach it instantly • Every calculator now opens full-screen with a large, readable result Calculator Upgrades • Recording Size: 44.1 and 88.2 kHz sample rates, plus minutes input for precise session lengths • Sound speed now accounts for humidity (Cramer 1993 model) — more accurate delay and wavelength results outdoors • Distance–Delay: adjust temperature right inside the calculator • Level Convert (dBu/dBV/V), dB Sum, and bidirectional inputs — now easier to find Picture in Picture — Rebuilt • Tap the PIP window for close and return-to-app controls • New setting: turn automatic PIP on exit on or off • PIP now closes automatically when you return to the app Plus stability and detail fixes throughout.

What's New SOUNDKIT is now free to download — one purchase unlocks everything. Already bought the app? You get Pro for free. Thank you for the early support! MEASURE • True IEC 61672 A / C / Z frequency weighting for SPL • Measurement-mode input — iOS auto-gain disabled for accurate readings • Fine calibration with ±0.5 dB steppers • Full Screen view: dB(A) & dB(C), Fast & Slow — all at once • Picture-in-Picture: cleaner layout, kHz display, one-tap return CALCULATE • All-new CALC tab: 6 categories, 17 calculators • Bidirectional inputs — enter either side (delay ⇄ distance) • New: BPM delay times, note ⇄ frequency, comb filter, SPL over distance, amp power → SPL, dB sum, exposure limit, power load, dBu/dBV/V, impedance, latency • Temperature-corrected speed of sound FIXED • Music from other apps no longer stops while using SOUNDKIT • Auto-recovery after phone calls and mic/headphone changes • Improved key detection accuracy

Added a 32-bit option to the recording size calculator.

What's New in 2.0.6 New - Pinch-to-zoom on the RTA — spread two fingers to zoom into any part of the frequency axis (20 Hz–20 kHz), and double-tap to reset to full range. - Tap-to-read frequency — touch and drag anywhere on the RTA graph to read the exact frequency in Hz at your fingertip. - Clock in landscape — the current time now stays visible while you work in landscape. Improvements - Redesigned tempo entry — a large, easy-to-tap number pad replaces the small keyboard. In landscape it opens on the right half of the screen for comfortable typing. - More accurate Key detection, especially for low and bass notes, with steadier readings that no longer flicker between keys. - Steadier BPM readings that settle quickly and still react fast when the tempo changes. - Better battery efficiency and smoother overall performance. - Fresh new app icon. Fixes - Fixed text wrapping ("Searching…" / "STOP") on the SHOW screen in landscape. - Fixed the tempo keyboard not appearing in portrait mode.

Optimized the UI size to fit the different screen sizes across iPhone and iPad models.

New in 2.0.3: • RTA — real-time frequency analyzer (Bars, Line, Spectrogram) • Tone Generator — Sine, log Sweep, and Pink noise • Simple View — full-screen, customizable big readout • Recording Size calculator • Full landscape support on every tab • Keep-Awake toggle so the screen stays on during a show • Stability fixes and refinements The Pro tools (RTA, Tone Generator, Simple View, Recording Size) unlock with a one-time Pro purchase — and they're free for existing customers.

What's New in 1.1.12 • SPL Averaging — Choose how sound levels are averaged (Fast / Slow / Leq) for readings that match your needs. • KEY Finder Trigger Level — New slider to set the audio level at which song detection kicks in, so it only searches when you want it to. • Redesigned PIP Toggle — A larger, dedicated button to switch the main metric (SPL ↔ Peak Frequency) shown in the floating window. • SPL Offset Calibration — Fine-tune your SPL readings with an adjustable offset.