JB Labs.
Twenty app icon

A timer for looking up

Twenty

A focused iOS timer built around the commonly recommended 20-20-20 screen-break habit.

Focus for twenty minutes. Look away for twenty seconds. Repeat.

Download on the App Store

01 / Make it yours

Your rhythm, not ours.

Customize focus time, short and long breaks, and the number of focus cycles. Twenty keeps the routine structured without making it rigid.

02 / At a glance

The timer goes with you.

Keep working in other apps while notifications and Live Activities make the current timer easy to follow from the Lock Screen or Dynamic Island on compatible iPhones.

03 / Set it down

A desk timer, too.

Use Twenty in portrait or turn your iPhone sideways for a clear landscape desk-timer layout, with light and dark timer appearances.

Twenty for iPhone

A closer look.

  • Twenty timer showing 00:00 with a Start 20-20-20 button, above the caption “The 20-20-20 rule, made simple.”
  • A Twenty notification reading “Time for a break — your focus time is up” arriving over Safari.
  • iPhone Lock Screen Live Activity showing “Twenty is keeping time” with the next break in 9:03.
  • Expanded Dynamic Island showing a long break with 29:45 remaining and the note “Take some time away from the screen.”
  • Twenty settings in light and dark mode, with adjustable focus, break, long break, and cycle durations.
  • Two Twenty focus timers side by side, one in light mode and one in dark mode.
  • Twenty in landscape desk-timer mode, shown in dark and light appearances.