You live with two roommates. Your rent is $3,000. One person has the bigger room, so you split it 40/30/30 instead of evenly.
Every month, when you add the rent expense, you have to:
- Tap "Add Expense"
- Enter the amount
- Select "Percentage Split"
- Set Alice to 40%
- Set Bob to 30%
- Set yourself to 30%
- Save
And if you mess up? You have to edit and do it again.
Splitorium's Default Split saves that template once. After that? One tap. Done.
Configure your split once. Use it forever. Never select percentages again.
What Is Default Split?
Default Split is a group-level preset that defines how expenses should be divided. When you create a new expense, Splitorium automatically uses this template instead of making you configure it manually.
Key Features
- One-time setup: Configure once, use for all expenses
- Percentage or weighted shares: "40/30/30" or "4 shares / 3 shares / 3 shares"
- Override when needed: Switch to even, exact, or manual split for any expense
- Works offline: Part of Splitorium's offline-first architecture
Split Types Explained
Before diving into Default Split, let's clarify the split types Splitorium supports:
| Split Type | How It Works | Example ($300 expense) |
|---|---|---|
| Even | Divide equally among participants | $100 each (3 people) |
| Percentage | Specify exact % for each person (must total 100%) | 40% = $120, 30% = $90, 30% = $90 |
| Weighted | Assign "shares" — ratio-based splitting | 4:3:3 shares = $120, $90, $90 |
| Exact | Manually enter each person's exact amount | $150, $100, $50 |
Default Split works with Percentage and Weighted — the two types where the ratio stays consistent regardless of the total amount.
Why You Need Default Split
The Roommate Scenario
You and 2 roommates share expenses. Rent is always 40/30/30. Utilities are always 40/30/30. Internet is always 40/30/30.
Without Default Split: Configure the same 40/30/30 manually for every expense. Every. Single. Time.
With Default Split: Set it once. Every new expense automatically uses your preset. Takes 2 seconds instead of 30.
The Income-Based Split
Couples sometimes split expenses based on income ratio. If one earns 60% of household income, they pay 60% of shared expenses.
Default Split makes this automatic. Set it once when you move in together.
The "Main Person Pays More" Setup
On a group trip, sometimes the organizer takes on extra costs. Set a default where they pay a larger share, and don't argue about it at every restaurant.
How to Set Up Default Split
-
Open group settings
Go to your group and tap the gear icon or "Group Settings"
-
Find "Default Split"
It's in the group configuration section
-
Choose distribution type
Select "Percentage" or "Weighted Shares"
-
Set values for each member
Enter percentages (must total 100%) or share values
-
Save
Your default is now active for all new expenses
Using Default Split Day-to-Day
Once configured, here's what adding an expense looks like:
- Tap "Add Expense"
- Enter amount and description
- "Default Split" is already selected
- Save
That's it. Your preset percentages are applied automatically. The split selector shows 5 options now:
- Default Split ✓ (your preset — selected by default)
- Even
- Percentage
- Weighted
- Exact
Want to override for a specific expense? Just tap a different option. Your default is still saved for next time.
How This Compares to Splitwise
Splitwise doesn't have Default Split. Every expense requires manual participant and split configuration.
| Action | Splitorium | Splitwise |
|---|---|---|
| Add monthly rent (40/30/30) | ✅ One tap (preset) | ❌ Configure manually |
| Add weekly groceries (40/30/30) | ✅ One tap (preset) | ❌ Configure manually |
| Add utility bill (40/30/30) | ✅ One tap (preset) | ❌ Configure manually |
| Time per expense | ✅ ~5 seconds | ❌ ~30 seconds |
Over a year of roommate expenses, that time adds up. Default Split removes the friction.
Percentage vs. Weighted: Which to Choose?
Use Percentage When:
- You have exact percentages in mind (40/30/30)
- Your agreement is percentage-based ("I pay 60%")
- You want precise control
Use Weighted Shares When:
- Ratios are easier to think about (4:3:3 shares)
- You might add/remove people and want ratios to adjust
- Your agreement is share-based ("I pay double")
Pro tip: Weighted shares are often simpler to communicate. "Alice pays 2 shares, everyone else pays 1 share" is clearer than "Alice pays 40%, Bob pays 30%, Charlie pays 30%."
Real-World Use Cases
Where Default Split Shines
- Roommates with unequal rooms: Bigger room = bigger share
- Couples with income gap: Split based on earnings ratio
- Business partners: Expenses divided by ownership stake
- Group houses: 5 people, complex room size differences
- Shared car expenses: Split by usage/mileage ratio
- Friend groups with "the planner": Organizer pays extra, others split the rest
Combining with Other Features
Default Split works seamlessly with other Splitorium features:
- Recurring Expenses: Set monthly rent with Default Split, automate it to repeat on the 1st
- Virtual Users: Include virtual users in your preset split
- Family Mode: Families can have their own default splits
- Offline Support: Default Split works offline — syncs when you're back online
Stop Configuring the Same Split Repeatedly
If you've ever thought "I split everything the same way, why do I have to set it up every time?" — Default Split is for you.
Splitorium makes expense splitting as fast as it should be. Configure once. Use forever.