Flow: Sequential Timer

Flow is the timer app for people who follow routines — workouts, stretching, meditation, study sessions, and more. Build a sequence of timed steps once, then run it on repeat, completely hands-free.

Build Your Routine, Run It Every Day
Stop fumbling with your phone mid-workout. Flow lets you create reusable sequences of timed steps — activity intervals, rest periods, warm-ups, cool-downs — organized exactly the way you train. Hit Start, set your phone down, and go.

Activity & rest steps with custom names and durations
Grouped rounds — set any block of steps to repeat N times (e.g. "3 rounds of push-ups/rest/squats/rest")
Optional step descriptions read aloud via text-to-speech
One-tap quick start from the home screen or lock screen shortcuts
Truly Hands-Free
Flow keeps you in the zone while your phone stays out of sight:

Voice announcements — "Push-ups, 45 seconds", "Rest", "Last round"
Haptic feedback — distinct pulses for activity vs. rest steps
Persistent notification with Pause, Resume, Skip, and Stop controls — works from the notification shade and lock screen
Screen-on during playback — no accidental screen-off mid-set
Cast to your TV — send the live timer to any Chromecast or Google TV and follow along on the big screen, with voice announcements playing through the TV speakers
Background playback continues even when you switch apps
Track Progress & Build Habits
Every time you run a sequence, Flow logs it. Over time, your history tells the story of your consistency:

Execution log — every run recorded with completion %, active time, and rest time
Calendar heatmap — see your active days at a glance on the home screen and per sequence
Streak counter — tracks consecutive active days with a configurable minimum completion threshold
Daily reminders — optional notification at your chosen time to keep the habit alive
Achievements That Mean Something
Six badge categories reward real effort: sequences completed, activity time, rest time, active days, and more. Each badge has seven levels from Newcomer to Master — progression you earn, not buy.

Ready-Made Routines, Shareable Sequences
Browse the catalog — pre-built sequences for common workouts and wellness routines, ready to import with one tap
Import / Export — share your sequences as .flow files with friends or across your devices
Duplicate & customize — start from a template, make it yours
Cast to the Big Screen
Tap the Cast icon in the timer and send your workout to any Chromecast or Google TV. A full-screen timer — large countdown, progress bars, step name, and round indicator — fills your TV. Voice announcements play through the TV speakers so you never have to glance at your phone.

Clean, Modern Design
Material You design with Light, Dark, and System theme support
Large, glanceable countdown — readable from across the room
Full-screen Chromecast receiver with the same Flow visual style
Two progress bars: current step progress + overall sequence progress
Step position & round indicator ("Step 4 of 12 · Round 2 of 3")
Drag-to-reorder sequences and steps
Adaptive portrait & landscape layouts
Perfect for: HIIT · Circuit training · Yoga · Stretching · Mobility · Meditation · Breathing exercises · Pomodoro / study sessions · Recovery protocols · Home gym workouts on the big screen · Any activity where timing matters