Dimesum Engineering
The team building Dimesum. We write up the parts of the product that were hard to get right, using our own code and our own defects as the evidence.
- Money
Tricount alternatives: 8 apps ranked on who owns them and what they cost
Tricount alternatives ranked on who owns each app, what it costs a whole group, whether it still ships and who can join, with every fact dated August 2026.
- Money
How to keep track of who owes who on a group trip
Keep track of who owes who on a group trip in two currencies: record each bill on the day, name who shared it, and settle once at the end in few transfers.
- Money
Shared expenses spreadsheet or app? Where the sheet breaks
A shared expenses spreadsheet works until an edit, a second currency, an unconfirmed payment or a stray cent. Where the sheet breaks, and when to keep it.
- Money
Splitwise settle up: what it means in Splitwise and every other app
Splitwise settle up means paying what you owe and recording it so the balance is zero. How Splitwise, Dimesum and six other apps do it, with a worked example.
- Money
Splitwise daily limit: 4 expenses a day and your options
The Splitwise daily limit is 4 expenses a day on a free account, per its help centre. What Pro adds, how the Splitwise Card lifts it, and your other options.
- Money
Splitwise alternatives: 10 apps ranked on five plain tests
Ten Splitwise alternatives ranked on five tests: free with no daily cap, edits that keep history, per-currency balances, fewer transfers and a clean exit.
- Money
How to split costs for a group event: bachelor parties, weddings and ski trips
How to split costs for a group event: a deposit paid months early, a friend who joins late, one who skips the lift passes, each worked to the cent.
- Money
How to split a bill with someone who doesn't have the app
Split a bill with someone who has no app and no account: send a link or a QR code, let them see their share in a browser, and keep their place until they join.
- Money
Splid and Settle Up alternatives: 7 apps compared on cost and upkeep
Splid alternatives and Settle Up alternatives compared: what each app costs a whole group, when it last shipped, and who owns it, with every fact dated.
- Money
Best apps for expense tracking when the bills are shared: 10 ranked
The best apps for expense tracking in a group record what each person owes, which a budgeting app cannot. Ten shared trackers ranked, Dimesum first.
- Money
Private expense sharing app: 13 questions to ask before you choose
A private expense sharing app should say what it keeps, who reads it and how you delete it. Thirteen questions, answered for Dimesum from its privacy notice.
- Money
Multi-currency expense splitting apps: 9 ranked on one test
Multi-currency expense splitting apps either keep a balance per currency or convert every bill at one rate. Nine ranked, with yen worked to the last unit.
- Money
How to export Splitwise data and move your group without losing history
Export Splitwise data one group at a time, then move the whole history into Dimesum with an AI assistant, and bring the rest of your group along with you.
- Money
Dimesum vs Splitwise: features, price and how to move a group
Dimesum vs Splitwise as of 2026: a free ledger with no daily cap and per-currency balances, against a free tier its help centre caps at 4 expenses a day.
- Money
Bill splitting apps in Japan: 6 ranked for warikan in yen
Bill splitting apps in Japan, ranked for a trip: splits in whole yen with no decimals, each currency kept apart, and a way in for the friend with no app.
- Money
Best apps to split travel expenses: 9 ranked on a real trip
Nine apps to split travel expenses, ranked on what a trip breaks: two currencies, a friend with no account, a busy day of bills, one settle at the end.
- Money
Venmo Groups, Revolut Group Bills and Monzo Split: when a bank's split is enough
Venmo Groups, Revolut Group Bills, Monzo Split, Cash App Pools, PayPal and Apple Cash compared: where a bank's split works, and where a ledger app starts.
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Apps to split a bill by item: 6 ranked on tax and tip
Six apps to split a bill by item, ranked on how they share tax, tip and discounts by what each person had, and on what stays on record after dinner.
- Money
Best apps for couples to split expenses: 10 ranked for two
The best apps for couples to split expenses save a 60/40 income split, repeat the rent and charge nothing for two. Ten apps ranked, Dimesum first.
- Engineering
Split bill rounding: why your app and spreadsheet differ by a cent
Your sheet shows $33.33 three times; the app shows $33.34 once. Split bill rounding explained: largest remainder, a fixed odd cent, and a yen with no cents.
- Engineering
Why your split bills never seem to add up right
A group balance that won't add up isn't your maths. When you split bills, it's one of four causes: rounding, a currency, an edit, or someone who left.
- 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 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.
- 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
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.
- 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.
- 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.
- 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
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.
- 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
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.
- 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.
- Money
Best bill splitting apps: 11 ranked on what lasts
We ranked 11 bill splitting apps on the four things that decide it: edits that keep history, per-currency balances, fewer transfers, and a clean exit.
- Engineering
We deleted our natural language expense parser
Dimesum deleted its rules-based natural language expense parsing after four money bugs, and shipped one refusal rule that returns a number or nothing.
- Money
The rent split guide: divide rent with roommates fairly
A practical rent split guide: divide rent by room size or income, prorate a mid-month move, and split utilities by a different rule. Worked $2,400 example.
- Money
How to split an itemized bill when one dish wasn't shared
Split an itemized bill line by line: name who ate what, let the total derive from the lines, and allocate tax and tip by what each person ate.
- Money
Settle up: how to clear group expenses in fewer transfers
What settle up means and how to do it: net every balance instead of repaying receipts, clear a group in at most n-1 transfers, and confirm both sides agree.
- Money
Six money bugs in multi-currency expense splitting
A multi-currency expense splitting audit found six money bugs a green test suite never saw. Read every defect, its cause, and the fix that deleted an engine.
- Design
Four illustration styles, and the one that ships
Dimesum drew four illustration styles and shipped one. The brand art direction rule: a colour that cannot become a token cannot be re-themed.
- Money
Why editing a shared expense must restate the split
Editing a shared expense in Dimesum means restating the whole split, so fixing a typo never pulls in a flatmate who joined later or flattens 70/30 to 50/50.
- Engineering
The append-only ledger that keeps split-expense balances exact
Dimesum posts every split expense to an append-only ledger, so balances become a projection you can delete and rebuild instead of a number that drifts.