LeaveBy: Traffic-Aware Alarm
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About this app
Stop setting alarms for the wrong time.
LeaveBy is a traffic-aware alarm for people who actually need to go somewhere. Instead of guessing when to leave, you tell LeaveBy when you need to arrive — and it watches live traffic, transit delays, and your prep time to ring you at exactly the right moment.
No more "I'll leave at 8:15" only to hit unexpected traffic and arrive 20 minutes late. LeaveBy recalculates in the background and rings earlier when the roads get worse.
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HOW IT WORKS
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1. Pick a destination (Google Places search, or save Home / Work).
2. Set your arrival time.
3. Tell us your prep time — 15 min to shower, 30 to get the kids ready, whatever you need.
4. Choose your mode: driving, transit, walking, or cycling.
5. LeaveBy monitors traffic and rings when it's time to leave.
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FEATURES
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• Traffic-aware alarm — the alarm time adjusts itself as traffic changes
• Live traffic from Google Maps, updated continuously as departure approaches
• Arrival-time-first — set when you need to be there, we compute when to leave
• Four travel modes: driving, transit, walking, cycling
• Full-screen alerts that actually wake you, even through Do Not Disturb
• Prep-time buffer so "leave time" already includes your shower, coffee, commute to the car
• Repeat on any days — weekdays, weekends, one-off
• Calendar view of everything you have coming up
• Saved places — Home, Work, anywhere you go often
• Offline-first — your alarms fire even with no signal
• Clean Material 3 design, dark mode, dynamic type
• Sign in with Google or email; your alarms sync across devices
━━━━━━━━━━━━━━━━━━━━
WHO IT'S FOR
━━━━━━━━━━━━━━━━━━━━
• Commuters who get burned by rush-hour variance
• Parents juggling school drop-offs and appointments
• Anyone who's been late to an interview because "the map said 22 minutes"
• People with ADHD or time-blindness who need the alarm to think for them
• Transit riders dealing with unpredictable schedules
━━━━━━━━━━━━━━━━━━━━
PRIVACY
━━━━━━━━━━━━━━━━━━━━
Your location is used only to calculate travel time. We never sell your data. You can delete your account at any time from inside the app or from our website.
━━━━━━━━━━━━━━━━━━━━
QUESTIONS?
━━━━━━━━━━━━━━━━━━━━
We'd love to hear from you: songyue.support@gmail.com
Stop setting alarms for wake-up time. Set them for the only time that matters — when you need to walk out the door.
LeaveBy is a traffic-aware alarm for people who actually need to go somewhere. Instead of guessing when to leave, you tell LeaveBy when you need to arrive — and it watches live traffic, transit delays, and your prep time to ring you at exactly the right moment.
No more "I'll leave at 8:15" only to hit unexpected traffic and arrive 20 minutes late. LeaveBy recalculates in the background and rings earlier when the roads get worse.
━━━━━━━━━━━━━━━━━━━━
HOW IT WORKS
━━━━━━━━━━━━━━━━━━━━
1. Pick a destination (Google Places search, or save Home / Work).
2. Set your arrival time.
3. Tell us your prep time — 15 min to shower, 30 to get the kids ready, whatever you need.
4. Choose your mode: driving, transit, walking, or cycling.
5. LeaveBy monitors traffic and rings when it's time to leave.
━━━━━━━━━━━━━━━━━━━━
FEATURES
━━━━━━━━━━━━━━━━━━━━
• Traffic-aware alarm — the alarm time adjusts itself as traffic changes
• Live traffic from Google Maps, updated continuously as departure approaches
• Arrival-time-first — set when you need to be there, we compute when to leave
• Four travel modes: driving, transit, walking, cycling
• Full-screen alerts that actually wake you, even through Do Not Disturb
• Prep-time buffer so "leave time" already includes your shower, coffee, commute to the car
• Repeat on any days — weekdays, weekends, one-off
• Calendar view of everything you have coming up
• Saved places — Home, Work, anywhere you go often
• Offline-first — your alarms fire even with no signal
• Clean Material 3 design, dark mode, dynamic type
• Sign in with Google or email; your alarms sync across devices
━━━━━━━━━━━━━━━━━━━━
WHO IT'S FOR
━━━━━━━━━━━━━━━━━━━━
• Commuters who get burned by rush-hour variance
• Parents juggling school drop-offs and appointments
• Anyone who's been late to an interview because "the map said 22 minutes"
• People with ADHD or time-blindness who need the alarm to think for them
• Transit riders dealing with unpredictable schedules
━━━━━━━━━━━━━━━━━━━━
PRIVACY
━━━━━━━━━━━━━━━━━━━━
Your location is used only to calculate travel time. We never sell your data. You can delete your account at any time from inside the app or from our website.
━━━━━━━━━━━━━━━━━━━━
QUESTIONS?
━━━━━━━━━━━━━━━━━━━━
We'd love to hear from you: songyue.support@gmail.com
Stop setting alarms for wake-up time. Set them for the only time that matters — when you need to walk out the door.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info
Data isn’t encrypted
You can request that data be deleted
What’s new
Minor Bug Fixes.
