New — version 1.0 out now

Time, without the noise.

A simple, polished timer for focus blocks and workouts. Pick a duration, hit Start. The app gets out of your way.

Download on the App Store
  • Offline
  • No login
  • No tracking
  • Free, forever
Seshlo running a 5 minute session

What it does

Built for the way you actually use a timer.

Every feature earns its place. Nothing else gets shipped.

  • Pick any duration in seconds

    Two big steppers for hours and minutes, plus one-tap presets for the durations you'll use most — 1m, 5m, 15m, 25m, 45m, 1h, 90m, 2h, 3h. No fiddly keyboards.

  • Pip warnings, then a clear end

    Subtle audible pips at the 10-minute and 1-minute marks let you stay heads-down. A sharp completion alert sounds the moment time's up — even with the app in the background, even with Focus mode on.

  • Bookmark your favourites

    Save up to 6 named sessions you reuse — "Focus block", "HIIT", "Meditation". Recent durations are remembered automatically, so getting back into a session is one tap.

  • Stays accurate

    Anchored to wall-clock time, not a JavaScript interval. Switch apps, lock your phone, take a call — when you come back, the countdown is exactly where it should be.

  • Looks at home in any theme

    Light, dark, or follow-the-system. The whole UI is built around a single warm timer accent that pulses gently when a session completes.

  • Configurable to the moment

    Toggle the pip sounds, visual cues, and haptics independently. Pre-end warnings can be disabled if you'd rather only know when time is up.

A look inside

Calm by default. Loud when it counts.

Seshlo duration picker with steppers and one-tap presets
Pick a duration
Active 5-minute session with a progress bar
Heads-down session
Session complete screen with a pulsing accent ring
A clear end
Bookmarked sessions list with Reading, Pomodoro, and Claude session
Your favourites, one tap away

Quiet by design

Seshlo doesn't collect anything.

No login. No analytics. No ads. No tracking. No subscriptions. The app works fully offline — your bookmarks, settings, and recent sessions live on your device only.

Read our privacy policy

Made for

Anything that has a clear end.

  • Pomodoro focus blocks

    25m on, 5m off, repeat

  • HIIT & rest intervals

    Bookmark work and rest times

  • Meditation & breathwork

    Silent visual cue mode

  • Reading sprints

    Stay in the book

  • Cooking timers

    Just works

  • Anything with a clear end

    Pick a duration, hit Start

Free, forever.

Seshlo is built by ByteChaser as a free utility. No paid tier, no premium features held back. If it's useful to you, that's enough.

Download on the App Store