The Dimesum blog
How a money share tracking app is actually built: the ledger that cannot drift, the bill maths, the parser we deleted, and the art direction behind the dumplings.
Why your split bills never seem to add up right
A shared balance that won't add up almost always comes down to one of four things: a rounded cent, a second currency, an edited bill, or a member who left, and only the first is arithmetic.
Latest
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Money
Tracking shared expenses without becoming the accountant
Tracking shared expenses in a flat means remembering, asking and looking mean. Here is what to capture, and how a shared ledger carries it instead.
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Money
Splitting utility bills without a monthly argument
Splitting utility bills fairly: split what everyone uses equally, split what one person uses by use, and follow a full quarter worked out to the cent.
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Money
Splitting bills with a partner: fifty fifty or by income
Splitting bills with a partner when you earn different amounts: compare fifty fifty, by income, and a shared pot, with one worked example you can recompute.
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Money
The rent split calculator that ends the argument
A rent split calculator only does the sum. Here is how to choose the method, split 2,400 by area, income or ensuite, and defend the number tonight.
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Money
The split expenses calculator method, in four steps
A split expenses calculator totals what each person paid, totals what each owes, finds every net position, then settles the group in the fewest transfers.
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Money
A template for expense tracking, in five columns
This template for expense tracking gives you five columns, one formula for balances, and the four things a spreadsheet will never do for your flat or trip.
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Money
Best rent split apps: 11 ranked for month four
We ranked 11 rent split apps on what rent really tests: an edit that keeps history, balances per currency, fewer transfers, and getting your data out.
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Money
How to split payment rent between four flatmates
One name on the lease and four people owing in. Here is how to split payment rent every month without a short month, a bounced transfer, or a fight.
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Money
Joint bank account or separate: what actually decides it
A joint bank account decides where your shared money sits, not who owes what. Here's a worked example, the three arrangements, and what to agree first.
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Money
How to split a bill without the awkward math
Learn how to split a bill fast: divide by the table, pull out shared dishes, and let tax and tip follow each order. A worked example you can recompute.
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Money
Bill splitting statistics: 24 sourced numbers
Bill splitting statistics with every figure sourced: how often groups split, what goes unpaid between friends, and what a trip abroad quietly costs.
Guides
The long ones, kept current.
- Money
Tracking shared expenses without becoming the accountant
Tracking shared expenses in a flat means remembering, asking and looking mean. Here is what to capture, and how a shared ledger carries it instead.
- Money
Splitting bills with a partner: fifty fifty or by income
Splitting bills with a partner when you earn different amounts: compare fifty fifty, by income, and a shared pot, with one worked example you can recompute.
- Money
Best rent split apps: 11 ranked for month four
We ranked 11 rent split apps on what rent really tests: an edit that keeps history, balances per currency, fewer transfers, and getting your data out.
- Money
Joint bank account or separate: what actually decides it
A joint bank account decides where your shared money sits, not who owes what. Here's a worked example, the three arrangements, and what to agree first.
- Money
Bill splitting statistics: 24 sourced numbers
Bill splitting statistics with every figure sourced: how often groups split, what goes unpaid between friends, and what a trip abroad quietly costs.