Clackalyzer vs SignalProof

Clackalyzer lets you build a personal library of keyboard sessions — each one a complete snapshot of a build at a moment in time. Audio recording, build photo, spectrum snapshots, notes, and ratings, all in one place. Over time your library becomes something valuable: a history of every board you've owned, every mod you've tried, every switch you've tested. You can go back, compare, share, and actually remember what that build sounded like six months ago. **Each session captures:** • A WAV audio recording • A build photo • Full build metadata — board, plate, switch, foams, mic distance • Spectrum snapshots and spectral profile from the live analyzer • Ratings across five categories: Sound, Feel, Build Quality, Customization, and Value **Free recording modes** Four guided session types are provided: Comparison, Solo Switch, Typing Test, and Freestyle. Each one walks you through setup with a placement tip and best-practice checklist, counts you down from three, and auto-finishes when the session is done. **Your library** Browse every session with waveform previews, key build photos, acoustical metrics, and ratings at a glance. Tap any session for full playback, spectral profile, band energy breakdown, and complete build metadata. Save comparisons to revisit anytime. **The tools** A real-time FFT spectrum analyzer runs while you record — log-scale frequency display from 20 Hz to 20 kHz, peak hold, EMA average, cursor readout, and up to 6 labelled spectral peaks. **Clackalyzer Pro — $9.99, one-time unlock, no subscription** • Compare — record with Comparison Mode (Gentle, Normal, Hard, Rapid, and Typing Test steps timed to a metronome), then compare any two sessions side by side with A/B audio playback, spectrum overlay, band energy breakdown, and a plain-English summary of every sonic difference. Save comparisons and export to PDF. • Export & Share — share sessions as WAV or M4A for use in any DAW or audio tool • Frequency Filter — cut low rumble or high hiss to zero in on your switch's true sound • Noise Calibration — remove room noise so more of your keyboard's sound comes through • Waterfall Spectrogram — real-time scrolling spectrogram view • FFT size control — fine-tune frequency resolution • Three additional exclusive themes based on popular keycap sets; Metro-ish, Beige and Neon... (Kudo's to Nephock at NK!) **Themes** Five themes modeled after popular keycap sets. Default and Light are free — Metro-ish, Beige, and Neon unlock with Pro.

SignalProof is a tone generator for repeatable speaker, room, headphone, and sound meter checks. Generate controlled signals, follow practical workflows, and save the setup so you can run the same check again. Use it when random music, videos, and undocumented tone tools make results difficult to compare. WHAT YOU CAN GENERATE - 1 kHz and custom sine tones - Pink, white, and brown noise - Linear and logarithmic frequency sweeps - Left, right, or stereo output - Conservative dBFS level control - Timed or continuous playback BUILT FOR PRACTICAL AUDIO CHECKS SignalProof helps you: - Compare speaker channels with pink noise - Run quick sound meter sanity checks - Find room resonances with sweeps - Repeat window, door, and isolation checks - Save test-session notes and reference readings - Export a local PDF report for follow-up LOCAL-FIRST BY DESIGN Your sessions, notes, presets, and reports stay on your device. SignalProof requires no account and includes no ads, analytics SDK, cloud sync, or AI service. FREE CORE, OPTIONAL LIFETIME PRO SignalProof is free to download. The free experience includes the core tone, noise, and sweep generator, starter workflows, local test sessions, basic sharing, and one custom preset. An optional one-time, non-consumable SignalProof Pro purchase unlocks four advanced guided workflows, burst and intermittent playback patterns with configurable timing, and unlimited custom presets. SignalProof Pro is a lifetime unlock, not a subscription. The purchase price is shown in the app using your App Store storefront. SAFETY AND LIMITS SignalProof generates digital audio signals. It does not guarantee a specific acoustic dBSPL output from an iPhone speaker, Bluetooth speaker, or external system. Actual sound pressure depends on device volume, speaker hardware, distance, room conditions, and measurement setup. It is not a certified sound calibrator, medical hearing test, or lab-grade acoustic measurement tool. Start with low volume, raise levels gradually, and protect your hearing.