https://dimesum.com/blog/ How a money share tracking app is built: the ledger, the money maths, the AI, and the art direction. en https://dimesum.com/blog/why-shared-balances-never-add-up https://dimesum.com/blog/why-shared-balances-never-add-up Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/tracking-shared-expenses https://dimesum.com/blog/tracking-shared-expenses Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/splitting-utility-bills https://dimesum.com/blog/splitting-utility-bills Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/splitting-bills-with-a-partner https://dimesum.com/blog/splitting-bills-with-a-partner Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/split-rent-by-room-and-income https://dimesum.com/blog/split-rent-by-room-and-income Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/split-expenses-calculator-method https://dimesum.com/blog/split-expenses-calculator-method Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/shared-expense-tracker-template https://dimesum.com/blog/shared-expense-tracker-template Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/rent-split-apps-compared https://dimesum.com/blog/rent-split-apps-compared Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/paying-one-rent-from-four-accounts https://dimesum.com/blog/paying-one-rent-from-four-accounts Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/joint-account-or-separate https://dimesum.com/blog/joint-account-or-separate Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/how-to-split-a-bill https://dimesum.com/blog/how-to-split-a-bill Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/bill-splitting-statistics https://dimesum.com/blog/bill-splitting-statistics Tue, 22 Sep 2026 09:00:00 GMT Bill splitting statistics with every figure sourced: how often groups split, what goes unpaid between friends, and what a trip abroad quietly costs. https://dimesum.com/blog/bill-splitting-apps-compared https://dimesum.com/blog/bill-splitting-apps-compared Tue, 22 Sep 2026 09:00:00 GMT 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. https://dimesum.com/blog/we-deleted-our-expense-parser https://dimesum.com/blog/we-deleted-our-expense-parser Sat, 29 Aug 2026 09:00:00 GMT Dimesum deleted its rules-based natural language expense parsing after four money bugs, and shipped one refusal rule that returns a number or nothing. https://dimesum.com/blog/split-rent-with-roommates https://dimesum.com/blog/split-rent-with-roommates Sat, 29 Aug 2026 09:00:00 GMT 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. https://dimesum.com/blog/split-a-restaurant-bill-fairly https://dimesum.com/blog/split-a-restaurant-bill-fairly Sat, 29 Aug 2026 09:00:00 GMT 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. https://dimesum.com/blog/settle-up-group-expenses https://dimesum.com/blog/settle-up-group-expenses Sat, 29 Aug 2026 09:00:00 GMT 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. https://dimesum.com/blog/multi-currency-money-bugs https://dimesum.com/blog/multi-currency-money-bugs Sat, 29 Aug 2026 09:00:00 GMT 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. https://dimesum.com/blog/four-art-styles-one-ships https://dimesum.com/blog/four-art-styles-one-ships Sat, 29 Aug 2026 09:00:00 GMT Dimesum drew four illustration styles and shipped one. The brand art direction rule: a colour that cannot become a token cannot be re-themed. https://dimesum.com/blog/edit-must-restate-its-split https://dimesum.com/blog/edit-must-restate-its-split Sat, 29 Aug 2026 09:00:00 GMT 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. https://dimesum.com/blog/append-only-ledger-for-split-expenses https://dimesum.com/blog/append-only-ledger-for-split-expenses Sat, 29 Aug 2026 09:00:00 GMT 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.