Coming soon · iOS & Android

The trip and the tab, together.

Synodi is one app for the way you actually travel with people — plan the trip, share the costs, settle up without the spreadsheet, the group-chat math, or the awkward reminders.

Get early access See how it works

Enchantments Loop

4 members · 3 nights

Trailhead shuttle

Taylor paid · split evenly

$36.00

Cabin, 3 nights

Casey paid · split by nights

$412.50

Groceries

Quin paid · split evenly

$87.40

Quin owes Casey

$48.13

Taylor · settled

$0.00

How it works

From trailhead to settled up.

Step 01

Start the trip

Create a trip and pick its look — a theme and colors that feel like where you’re headed. Every trip gets its own page, its own ledger, its own personality.

Enchantments Loop · est. Sep 2026

Step 02

Gather your crew

Send one invite link. Friends sign up, tap it, and they’re in — no spreadsheet wrangling, no chasing people across three group chats.

4 members joined

Step 03

Log it as you go

Add expenses in seconds: who paid, what it was for. Split evenly, or split lodging by nights so the person who left early pays their fair share — and only that.

$412.50 · cabin · split by nights

Step 04

See who owes who

A running settlement view keeps everyone honest — simple mode for the answer, detailed mode for the receipts. No mental math at the trailhead.

Quin owes Casey $48.13

Step 05

Settle up, move on

Mark payments as settled and everyone gets notified the moment money moves. The trip ends with photos and stories — not a round of awkward money requests in November.

All settled · Oct 4

At launch

What’s in the pack.

Expense splitters stop at the money. Synodi is built around the trip — the money is just the part nobody else got right.

Trips with a look of their own

Create a trip and choose a theme and colors. The desert trip and the ski trip shouldn’t look the same.

Join by invite link

Fair splits, including lodging

Split evenly or by nights stayed — built for the reality that not everyone arrives Friday and leaves Sunday.

Settlement, simple or detailed

One clean number for who owes who, with a full breakdown behind it when someone asks “wait, why?”

Settle traditional or simplified

Two ways to square up: traditional or simplified. Pick whichever fits your group — either way, everyone comes out even.

Mark it settled

Record payments as they happen so the ledger always reflects reality — no lingering ghosts of debts already paid.

Notifications that matter

Know when an expense lands or a payment clears. Nothing else. Your phone has enough going on.

Your trip, your rules

Manage members and trip settings from one place. Add the latecomer, remove the flake, rename the whole thing.

The trail ahead

Where we’re headed next.

The ledger is the trailhead, not the summit. Here’s what we’re building after launch.

Receipt uploads & invoice generation
Snap the receipt, attach it to the expense, and generate a clean invoice when it’s time to square up.
Document uploads
Keep confirmations, permits, and reservations with the trip they belong to.
Shared grocery list
One list for the cabin run, so you come back with everything and only one bag of tortilla chips.
Chat & photo sharing
Trip talk and trip photos, in the trip — not scattered across four apps.
Trip countdown
The days-until number, right where everyone can see it.
Interactive trip games
Add-on
Add-on games to play together on the drive, at camp, or while the rain does its thing.

Coming soon

Be first at the trailhead.

Synodi is in development for iOS and Android. Drop us a line and we’ll let you know the moment it’s ready to download.

Get early access