QuietScore vs Frequency Generator & Analyzer

QuietScore measures how much noise your doors and windows actually block: a Sound Isolation Score in about 60 seconds, using your iPhone and a Bluetooth or AirPlay speaker. No lab equipment, no calibration, no sign-up. It is a practical estimate, on a scale comparable to professional STC ratings, and it is the number that tells you whether to sign the lease, whether your conference calls can be heard from the next room, whether the studio treatment worked, or whether last weekend's weatherstripping did anything at all. HOW IT WORKS 1. Put a Bluetooth or AirPlay speaker inside the room 2. Step outside with your phone and take a reading with the door open 3. Close the door and take the second reading The app plays test tones through the speaker and measures how much of them survives the trip through your door or window. Same spot for both readings, only the door changes: your score is the difference between the two, which is why nothing needs calibrating. About 60 seconds once the speaker is connected. WHAT YOU GET • Sound Isolation Score, one number for the whole door or window • Privacy Rating: Excellent, Good, Moderate or Poor • Four-tone breakdown — 125 Hz, 500 Hz, 1 kHz and 4 kHz, so you can see whether it's bass, HVAC hum or speech that gets through • Rooms and history — save each result to a room, add a note about what you changed, and see the difference since the last measurement • PDF reports — export a result to hand to a contractor, a landlord or a client LEAK SCANNER Sound rarely comes through the wall. It comes through the gap. Sweep your phone along a door or window frame and the scanner reads the leak live against a baseline spot you set, so you can hear and see the moment it jumps. Mark the hot spots as you find them and they collect into a findings list. Two modes: play a tone from inside, or listen passively to whatever noise is already out there. The scanner locates leaks — it doesn't score the door. THE FIRST 3 ARE FREE Your first 3 Sound Isolation Scores are free, with no account and no trial clock. After that the measurement still runs and the score unlocks with a plan. A retake spends one of your three; a run we can't stand behind, interrupted or too noisy to trust, doesn't. The app shows what you have left before you start. PLANS • Home — unlimited QuietScores, the four-tone breakdown, saved rooms with history and notes, the full Leak Scanner and PDF export • Studio — everything in Home, plus raw dB figures and USB reference-microphone support • Business — everything in Studio, plus branded, client-ready PDF reports FOR PROFESSIONALS QuietScore Business is built for acoustic consultants, property managers, contractors and studio builders who need a number in front of a client before the expensive work starts, with their own name on the report rather than ours. Measure room by room on a single visit, save each to its own record, and export a branded PDF the same afternoon. Every report carries your logo and company name, with fields for the client, site address, project ID and anything else the job needs. Works with any Bluetooth or AirPlay speaker, on iPhone and iPad. Your measurements stay on your device. The Sound Isolation Score is a practical estimate, measured with your phone instead of lab equipment rather than certified by it. It is the number you use to decide what to fix, show what changed, and give a client an answer the same day. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Turn your iPhone into a professional-grade acoustic laboratory. Powered by the high-fidelity YIN pitch detection algorithm, Frequency Counter delivers instant, real-time audio frequency analysis and tone synthesis with uncompromising engineering precision. Whether you are testing audio equipment, analyzing ambient sound waves, tuning musical instruments, or calculating motor RPM, this app provides the advanced tools you need in a clean, high-contrast visual dashboard. KEY FEATURES 1. REAL-TIME AUDIO ANALYSIS & SPECTROGRAPH High-Fidelity Pitch Detection: Track real-time sound frequencies instantly with exact readouts in Hertz (Hz). Live Oscilloscope Grid: Visualize active sound waves on a sweeping, highly responsive neon coordinate grid. Signal Gain Adjuster: Amplify low-amplitude ambient sounds easily by adjusting the visual height of the oscilloscope lines. Music Note Translator: Automatically convert active frequency measurements to the closest corresponding musical note (based on standard A4 = 440 Hz tuning). 2. ADVANCED STATS & ANALYTICS (PRO) Live Session Tracker: Monitor Minimum, Maximum, and Average frequencies detected during your active scanning session. Integrated Decibel Meter: View current volume levels (dB) directly alongside your frequency readout. RPM Speed Calculator: Measure the speeds of rotating fans, propellers, or motors with a configurable blade multiplier (1 to 8 blades). 3. PRECISION SCAN CONTROLS Freeze Screen: Freeze the active frequency readout and grid at any moment to inspect specific sound intervals. Reset Peak Meter: Instantly clear out the highest recorded peak frequency with a single tap. Start/Stop Engine: Complete control over your microphone input scanning sessions. 4. PROCEDURAL SOUND WAVE GENERATOR (PRO) Real-Time Sound Synthesis: Generate continuous tones supporting four reference waveforms: Sine (Cyan), Square (Green), Sawtooth (Orange), and Triangle (Purple). Tactile Tuning Pad: Fine-tune your output with incremental coarse buttons (-100, -10, -1, +1, +10, +100 Hz). Interactive Sweepers: Seamlessly navigate the human hearing spectrum (20 Hz - 20 kHz) using linear volume and logarithmic sweep sliders. Direct Hz Keyboard: Double-tap the main Hertz indicator to type your exact desired frequency via a dedicated number pad. GO PRO WITH FREQUENCY COUNTER PREMIUM Unlock the full analytical power of your device. Premium subscriptions remove all session limits and unlock: Unlimited scanning sessions and freeze-frame analysis. Full access to the Procedural Sound Wave Generator. Complete Stats Dashboard (Min/Max/Avg Tracker, dB Meter, and RPM Calculator). Choose from our flexible Premium plans: Weekly, Monthly, or Yearly subscriptions. Note: Microphone access is strictly required for real-time frequency analysis. All audio processing is performed locally on your device; your data remains completely private. Choose Your Plan Unlock the full analytical power of Frequency Counter. Get unlimited scanning sessions, full access to the advanced sound wave generator, and real-time tracking tools. Weekly Access — $1.99 / week (Most Popular) Monthly Pass — $4.99 / month Annual Saver — $29.99 / year (Best Value) Cancel anytime in your App Store account settings. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Terms of Service : https://sites.google.com/view/freqmeterterms/home Privacy Policy : https://sites.google.com/view/freqcounterpolicy/home