thereby
Time to Leave tells you when to go. It has no idea what happens after you do.
iPhone CalendarTime to Leave is the alert your calendar sends before an event, worked out from traffic and how you travel. It fires once, on the way out the door.
thereby’s whole product is the part after you leave: the stairs, the missed light, the slow patch, the moment the plan stops matching reality and you can still do something about it.
Tell thereby where you’re going and when you need to be there. It gives you one number: how much time you have to spare, updated the whole way.
Who it’s for
- People with time blindness. The problem isn’t just “when do I leave?” It’s “am I still okay right now?”
- Chronic-margin commuters. You’re catching a specific bus or train, and three minutes late costs twenty.
- Parents on a pickup deadline. A hard deadline with a real penalty, every single day.
- Anxious arrivers. You leave twenty minutes early because you can’t tell how you’re doing, and you’d rather have the information than the buffer.
The common thread is a recurring hard deadline with a consequence — and not knowing, the whole way there, whether you’re going to meet it.
What it does
Your spare time updates as you move. If you slow down, miss a light, or stop too long, thereby tells you while there’s still time to adjust.
It works walking, cycling, and driving, keeps tracking with the screen locked, and puts the same live margin on your Apple Watch.
A pace ghost shows the speed you need to maintain. “Start when I leave” can arm a trip before you go. You can also start a trip entirely from the Watch.
No deadline? Anytime mode simply keeps you posted on when you’ll arrive.
Get thereby
$1.99 once. No subscription. No in-app purchases.
In TestFlight now. Heading to the App Store.
Privacy & support
Trips stay on your device. There is no account. Routing and maps use Apple Maps.
thereby includes analytics and crash reporting, with an opt-out switch.