8-day list
Open it, and the answer comes first.
One sentence at the top tells you how many hours are open today.
Hachibu — Keep your schedule 80% full
What looks free on your calendar isn't.
Only what's left after travel and prep is time you can actually give. Hachibu shows it on your iPhone.
The app is in Japanese for now. English arrives in the next update, as in the screenshots below.
- Events 3.0h
- Travel 1.5h
- Prep 0.5h
- Tasks 6 · 6.0h
- Open
- On your calendar
- 7.0h open
- After travel and prep
- 5.0h left
- Add 6 tasks
- 1.0h over
Illustrative numbers.
See your day
Day
Travel and prep are on the timeline.
Travel and prep sit in red between your events. The trip back counts too.
Month
Your open time at a glance.
Each day is shaded by the time left in it. Days that are over show in red.
Find a time
Open slots
Answer a request on the spot.
Pick from the time left after travel and prep, and send it as text. Or send a link: they choose a time on its page, and an accepted request goes on your calendar.
Be on time
Leave-time alert
Told when to leave, counted back.
Hachibu works out when to leave from travel and prep. With Pro, the Lock Screen counts down.
Widgets
Know without opening it.
The Lock Screen and Home Screen show the time left today.
Tasks too
Your task load, in the same bar.
Hachibu reads today's tasks from Todoist or Reminders, and shows whether they fit in the time left, or how many hours they're over.
Privacy
Your event details never reach our servers.
The time left is worked out on your iPhone. To look up travel times, the search text and coordinates of where you're going are sent to Apple Maps.
What goes where is set out in the Privacy Policy.
Pricing
Seeing your time is free.
Free
8-day list, Day and Month, the time left after travel and prep, Open slots, and when to leave, with an alert. Everything Hachibu sets out to show is free. What the app does today keeps working without Pro.
Hachibu Pro Monthly or yearly
Adds what you do with that time. One-month free trial; the App Store shows the price in your currency.
- Get there on time
- Leave-time alerts 60 and 15 minutes before
- Countdown to leaving (Lock Screen, Dynamic Island)
- Running late
- Connect with people and AI
- Booking links: up to 5
- Links for meetings at their place, company name and color
- Ask about your time from Claude and ChatGPT
- Siri and Shortcuts
- Go deeper
- Widgets (medium Home Screen, StandBy)
- Task apps connected: 2 or more
- Saved places: up to 10
- Weekly review
Decide by the time you can give, not the time that looks free.
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