aka Alarm

aka Alarm wakes you at the right moment in your chosen window — not at an arbitrary fixed time.

Pick a wake-up window (any time, plus 30 minutes). Tap Start. aka Alarm listens to the ambient sound of your room and builds a rolling baseline of how quiet it really is. When the window opens, the first time you turn over, sigh, or shift the duvet, the alarm fires. If nothing happens, it fires at the end of the window so you never oversleep.

• Gentle wake-up — the alarm tone fades from 1 % to 100 % over a minute, so you come out of sleep gradually instead of being jolted. • Smart snooze — lightly move the phone to snooze. The snooze duration is randomised between 60 seconds and 15 minutes, clamped to whatever's left of your window. • On-device only — audio never leaves your phone. Nothing is recorded, stored, or transmitted. No accounts, no servers, no analytics. • Native iOS 26 design — Liquid Glass throughout, no custom skinning.

How it works in one paragraph: the app continuously samples microphone input to compute the ambient sound level (in dBFS) and maintains a five-minute rolling baseline. Within the wake window, a level rise above the baseline by a configurable threshold triggers the alarm. The microphone is active only while an alarm is set. Audio samples are processed in memory and immediately discarded.

aka Alarm is open source under the MIT licence.