Plan together. Split fairly.
Plan every leg of a trip together — flights, trains, stays, activities, and exactly who owes what.
Every way you travel, tracked
Add flights, trains, ferries, road trips, or any custom leg. Each route is plotted on a live map. Paste a confirmation email and AI pre-fills everything — service number, times, even multi-leg connecting itineraries.
- Flights, trains, ferries, cars, buses & custom
- Great-circle arc routes visualized on the map
- AI import from confirmation emails
- Connecting flight & layover detection
- Booking expenses linked to each journey
- Track who paid and who owes per booking
Every stay, all in one place
Add Airbnbs, hotels, or custom stays — then assign people to rooms. Arc splits the cost by room automatically, so whoever got the bigger room pays accordingly. Paste a confirmation email and AI fills the details instantly.
- Airbnb, hotel, hostel, or custom stays
- AI import from booking confirmation emails
- Room assignments for each guest
- Split costs by room, evenly, or exactly
- Airbnb address hidden until check-in? No problem
- Interactive map of all your stays
Discover things to do, together
Browse top-rated activities at your destination, powered by Viator. Results are automatically filtered to your trip's dates so you only see what's available when you're there. Book directly — no markup, no middleman.
- 300,000+ activities worldwide via Viator
- Auto-filtered to your trip destination & dates
- Ratings, duration, and pricing at a glance
- Book directly through Viator at their price
- From city tours to cooking classes to day trips
Eiffel Tower Summit Tour
Seine River Dinner Cruise
Versailles Day Trip
Louvre Skip-the-Line Entry
Paid by Mario
Split costs the way you actually want
Split evenly, by exact amounts, or by percentage. Link expenses directly to a flight or stay. Forgive someone's portion with one click — it stays in the record, no awkward conversations needed.
- Even, exact, fractional, or by-room splits
- Link expenses directly to transport or lodging
- Forgive a portion — it stays in the record
- Members settle their own splits independently
- Full summary of who paid and who owes
Bring your crew — no signup required
Add everyone by name from day one. Share an invite link and they can view flights, stays, and their expenses without ever creating an account. When they're ready to do more, signing up is one tap.
- Add members by name before they sign up
- Share a link — no account needed to view & settle
- Assign members to specific transport & rooms
- Per-person breakdown of what they owe
- Members settle their own splits independently
Paris Trip 🇫🇷
Mar 18 – 23, 2025
Mario
Organizer
$320 paid
Jordan
Joined
$85 paid
owes $62
Jesse
guestGuest · no login
$0 paid
owes $124
Alex
Invite pending
$142 paid
Paste a confirmation. Done.
Copy a flight or hotel confirmation email and paste it into arc. The AI reads the details and fills in everything — flight number, airports, dates, booking reference, cost. For multi-leg itineraries it detects each leg automatically.
JFK → CDG · Mar 18 · 9:00 PM
Confirmation: XJFK24 · $1,240.00
Ready to plan your next trip?
Free to use. No credit card. Create a trip, add your transport and stays, invite your crew — and let arc handle the rest.