Ambient Light Detector
Light is one of those things sighted people take for granted noticing, and the Ambient Light Detector exists to close that gap. Open it and you land on the "Light Level Detector" screen, centered on a large, tappable glowing dial that reports the brightness your phone is currently sensing. Tap the dial itself to toggle how that number is expressed — either as a simple percentage from 0 to 100%, or as a raw lux reading, whichever makes more sense to you.
Behind that single number sits a more detailed picture: the tool recognizes seven distinct light categories, from No Light and Low Light through Moderate Dim Light, Moderate Light, High Light, Very High Light, and Extremely Bright, each tied to a specific lux range. If you ever want the full picture, a "View Light Level Reference Chart" button opens a modal with two tabs, Percentage and Lux, laying out exactly where each category's boundaries sit.
The real strength of this tool is in how much control you have over how it communicates with you, gathered under a "Feedback & Accessibility Options" panel. A "Display as Percentage" switch controls the primary readout format. "Speech Announcements" has the tool speak changes in brightness aloud as they happen, rather than requiring you to keep tapping the dial. "Pitch Audio Tone" adds a musical layer on top of speech: a tone that rises in pitch as the room gets brighter, moving from a low 400 Hz up to a bright 1200 Hz, with the pulses themselves speeding up the brighter it gets — slow and spaced out in a dim room, rapid and urgent in bright sunlight. If you'd rather feel the change than hear it, "Vibration Pulses" adds haptic buzzes that follow the same logic, and a dedicated "Vibration Intensity" slider lets you set how strong those pulses feel, from a light 10 up to a firm 255, shown to you as a percentage.
A genuinely useful safety feature lives here too: the "Sudden Change Alarm." Switch it on, and the tool watches for abrupt shifts in brightness — a drop of more than about 65%, or a spike of more than 200%, provided the absolute change is meaningful — and responds immediately with a warning chime and a spoken alert: "Warning: light dropped suddenly" or "Warning: light increased suddenly." It's a small thing that matters in practice, whether that's noticing a light has gone out somewhere in your home or that you've stepped from shade into direct sun.
Last among the feedback options is "Auto-Flashlight in Dark," which does exactly what it says: when the sensed light drops below roughly 3 lux, your phone's torch switches on automatically, with an on-screen "Flashlight Auto-Enabled" confirmation, and switches back off once the room brightens past about 10 lux. It's a genuinely convenient way to avoid fumbling for a flashlight toggle the moment you step into a dark room.
As with Talking Camera, this tool doesn't maintain its own separate voice settings — a "Customize Speech Voice & Rate Settings" link at the bottom takes you straight to the shared Reading & Text-to-Speech Settings, so whatever voice and pace you've chosen there is exactly what you'll hear here too.