CoinLog is a household expense tracker with nothing to set up. Type the amount, tap the category, it's saved — and the number at the top of your screen tells you whether the month is going fine.
Free · No account · Works offline
3s
From lock screen to logged
6
Currencies, mixed freely
2
Taps to log a spend
100%
Of your data stays offline
01
The keypad opens first, because the number is the only thing you actually have to remember. Holiday spend in another currency? Tap the code next to the amount — CoinLog stores what you paid and converts it into the household currency for the totals.
02
The category tap is the save button. Groceries, rent, childcare, whatever you named them. Everything else — date, running totals, the month's pace — is filled in for you.
03
Home shows the month's spending against the money that came in, with a marker for today, so the figure means ahead or behind — not just a total you have to interpret.
04
On the last day CoinLog writes the month up: what each category cost, what changed since last month, and how much of the month's income you kept. One screen, keep it or export it.
There is no CoinLog server holding your amounts. Nothing syncs unless you export it yourself, as a CSV you can read. A bug report sends the version block and nothing else — you can see the exact text before it goes.