Nightshade: FocusFocus NSStudy until you're done, not until you drift off.
A pomodoro timer that watches for the moment you stop taking anything in — and wakes you before you lose the hour.
Get it on the App StoreApp Store listing pending review
On your Home Screen, look for Focus NS — the full app names didn't fit on the icon grid, so that's the short label this one got.
What it does
Streak tracking
Monitor your focus streaks and build consistency in studying — see your progress day-to-day.
Focus sounds
Bundled white noise, brown noise, rain and cafe ambience for work intervals — ducks automatically under an alert, off by default.
No signal needed
Study in a library basement or a dead zone. Detection runs entirely on your phone, so a missing bar never breaks a session.
Pricing
Thirty days of full detection, free. After that: $3.99 a year or $9.99 once — or keep using it free without detection. You get asked once.