Hurtz vs Flashlight Countdown

Hurtz is a clean, precise audio tone generator. Dial in any frequency from 20 Hz to 20 kHz and hear it instantly — great for testing speakers and headphones, tuning instruments, or producing a steady reference tone. FEATURES • Any frequency, 20 Hz – 20,000 Hz, set by a slider or typed in exactly (with a log or linear scale). • Four waveforms: sine, square, saw and triangle. • Quick presets (100, 220, 440, 1k, 10k Hz). • Nearest musical note read-out with cents (A4 = 440), handy as a tuning reference. • Frequency sweep: glide smoothly from one frequency to another over a set time. • Stereo mode: set a different frequency on the left and right channels, with a live difference (Δ) read-out. Useful for stereo and channel checks, and for binaural tones (use headphones). • A live oscilloscope view of the waveform. • Adjustable volume, and a large play/stop control. • Works on iPhone and iPad. Everything runs on your device. The app has no ads, no accounts, no tracking, and no internet access — it collects no data at all. SAFETY Sustained high-volume tones — especially very high or very low frequencies — can be uncomfortable and may risk hearing or small speakers. Start at a low volume.

Flashlight Timer turns your iPhone's rear light into a calm, adjustable light for physical reading, bedside use, and short tasks. Choose a quick duration or set any whole minute from 1 to 60. Select the light level, start the timer, and let the display fade to a fully black screen to reduce glare. Tap the black screen whenever you need to see the countdown or turn the light off immediately. Designed for a focused foreground session: • 5, 10, 15, and 30 minute quick choices • Any duration from 1 to 60 minutes • Five flashlight levels, from a faint glow to maximum • Optional automatic screen dimming • Tap-to-restore timer controls • Immediate manual shutoff • Local preferences with no account or tracking • Clear safety and permission guidance Keep Flashlight Timer open while the light is on. Opening Control Center, leaving the app, or locking your iPhone ends the session and switches the flashlight off early. This safety-first behavior avoids promising background flashlight control that iOS cannot guarantee.