Frequency Counter Hz Tuner vs Tonscape

Frequency Counter Hz Tuner combines guided instrument tuning with a microphone-based Hz meter, measurement history, tone tools, and an ultrasonic scanner. Use the new guided flow to tune a guitar or ukulele one string at a time, or open the meter when you want to inspect the dominant frequency in a sound. GUIDED GUITAR AND UKULELE TUNING Choose guitar or ukulele and work through the strings in order. The guide listens to each string separately. When fresh readings stay within ±5 cents long enough to meet the stability check, the Confirm button becomes available. Tap it to save that string as verified. Each confirmed string records the observed Hz value, cents offset, and verification time. If you stop before finishing, the app saves the partial session and can offer to continue it after relaunch. INSTRUMENT TUNER The tuner includes standard string targets for guitar, bass, ukulele, and violin. Adjust the A4 reference when your tuning setup calls for a different reference. Guided string-by-string sessions are available for guitar and ukulele; the other instrument targets remain available in the regular tuner. DOMINANT FREQUENCY METER Use the microphone to view the dominant frequency of a sound in Hz. Select Auto, Music, Motor, or Hum mode to match the kind of reading you want to inspect. The meter and tuner provide distinct views, so you can move between a general Hz reading and instrument-focused pitch information without leaving the app. MEASUREMENT HISTORY Keep up to 500 measurement records for later reference. Add a note to identify a sound or session, and mark useful records as favorites. The history screen makes it easier to return to selected readings instead of relying on memory or separate notes. TONE AND SWEEP TOOLS Generate sine, square, triangle, or sawtooth waves from 20 Hz to 20 kHz. Use a steady tone when you need one frequency, or use sweep mode to move through a range. These controls are grouped in the Tone screen and can support listening, instrument, and audio experiments. ULTRASONIC SCANNER Scan the 17–24 kHz band, view the detected peak and a source hint, and review the recent detection log. Microphone response differs by device, especially at high frequencies, so the scanner does not promise that every phone can cover the entire band. A PRACTICAL MULTI-TOOL FOR SOUND • Tune guitar or ukulele with a guided string sequence • Continue a saved partial tuning session after relaunch • Use standard targets for guitar, bass, ukulele, and violin • Read dominant sound frequency in Hz through the microphone • Choose Auto, Music, Motor, or Hum meter modes • Keep measurement records with notes and favorites • Generate four waveform types in tone or sweep mode • Inspect peaks and recent events in the ultrasonic band Microphone permission is required for listening features. Readings and high-frequency coverage depend on the microphone, device hardware, the sound source, and the surrounding environment. The app is designed as an audio measurement, listening, and instrument-tuning aid.

Tonscape is a precise sine-wave tone generator and real-time spectrum analyzer in one clean app. Dial in any frequency your iPhone can actually produce — from 0.01 Hz up to the hardware Nyquist limit (around 24,000 Hz) — typed to two decimal places or swept with a logarithmic slider. Set the exact pitch you need, control the volume up to full output, and play a pure, continuous sine tone. Then prove it. The built-in microphone spectrum analyzer captures sound in real time and shows you the full frequency spectrum on a live, neon display. A single-frequency detector measures the exact level at any frequency you choose, and a noise-floor comparison tells you whether that frequency is genuinely present above the background — even faint signals buried in noise, thanks to spectral averaging. WHAT YOU CAN DO - Generate exact frequencies to 0.01 Hz, only the ones your device can truly produce - Adjust volume from silent to full power - See a live, averaging FFT spectrum analyzer with peak-hold - Tap the spectrum to probe any frequency independently of the tone you're playing - Get a clear "present / not detected" readout with dB-over-noise - Identify your iPhone model and its estimated speaker range RELAX & SLEEP (Pro) - Binaural beats and isochronic tones with brainwave-band presets (delta, theta, alpha, beta) - White, pink, and brown noise generators - Nature sounds: ocean, rain, wind, stream, campfire - Sleep timer with gentle fade-out, plus background playback so it keeps going with the screen off - One-tap presets: Schumann/earth resonance, Solfeggio, and tuning references SOUND DESIGN (Pro) - Sine, square, triangle, and sawtooth waveforms - Chords and a logarithmic frequency sweep GREAT FOR - Sleep, relaxation, focus, and meditation soundscapes - Testing speakers, headphones, and subwoofers - Checking whether a specific frequency is present in a room or signal - Audio education, tuning references, and equipment checks Note: binaural beats require headphones. Labels for resonance/Solfeggio presets are descriptive only — the app makes no medical or therapeutic claims. Tiny phone speakers roll off at very low and very high frequencies, so some tones may be inaudible through the built-in speaker even though the signal is generated correctly — use headphones or external speakers for the full range.