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Real-time audio oscilloscope & waveform viewer for your microphone signal
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Live seismogram, vibration meter & earthquake detector with Richter magnitude
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Decibel noise meter with calibration, plus spectrum analyzer & tone generator
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Screen privacy filter. Lay a pattern over your screen to block prying eyes.
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High-frequency dog whistle, dog trainer & anti-bark tone tool for Android
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Measure vibration with accelerometer waveform, FFT spectrum and shock detector
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RT60 reverb meter, room mode analyzer & acoustic measurement tool
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Polar scope reticle clock for Polaris and Sigma Octantis on equatorial mounts
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Scan QR & EAN/ISBN barcodes, spot fake links on-device, make QR, keep history
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Auto-switch silent mode, brightness & volume by time, Wi-Fi or app, and back
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Magnetic field meter in µT: tap to start, compare readings by room, 24h log
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Boost low-light camera view with dark vision, infrared and amplifier modes
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Guide room checks with lens inspection, magnetic readings and Bluetooth clues
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Voice pitch analyzer: see your speaking pitch in Hz and practice in your range
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Warm filter over the whole screen to cut blue light. Timer and per-app rules.
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Vibrator vibrates your phone.
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Measure sound frequency in Hz — audio tuner, RPM counter & 50/60Hz meter
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Sine, square & noise tone generator 1 Hz–22 kHz with sweep, binaural and presets
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Night Vision Pro (SIMULATED). Simulates the night vision effect of your device.
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Record audio voice memo microphone app and audio transcription app
