In November 2025 we sat twelve people in front of a monthly summary and asked what they noticed. Nine apologised out loud. Nobody had asked a question, and there was nothing in the room to apologise to. The screen was doing it: a total set in red, an arrow pointing up, and a comparison against a month that had a week away in it.
Red is a verdict
Slip’s palette is blush, berry and aubergine, and every amount in the app is set in the same ink whatever its size. There is no red anywhere in the interface. A month of EUR 480.00 and a month of EUR 120.00 look the same until you read them, which is the correct amount of drama for a number that describes a supermarket. The only colour that varies is the category pill, and it means category and nothing else.
A comparison needs a reason to exist
We kept last month’s total on the summary, in the same size, with no arrow and no percentage badge next to it. We removed the line that said you spent 34% more on groceries than in January, because January had three weeks of cooking and a week in Seville, and one month is a small sample dressed up as a verdict. The streak counter went in the same release. Filing receipts for 41 days in a row is not a virtue, and an app that treats it as one will eventually punish someone for having a quiet week. One tester in Lisbon said the sentence we ended up pinning above the desk.
I know what I spent. I don’t need the app to have an opinion about it.
The notification we deleted
A Monday 09:00 push called “Your week in numbers” opened at 31% and produced most of the support messages containing the words “felt bad”. It was deleted on 18 Feb 2026 and replaced with a card inside the app that waits until someone opens it. Slip now sends two notifications in total: a receipt failed to read, and a forwarded email arrived. We also grep the copy for the word “should” before each release, which catches about one line a month. What Slip cannot do is tell you whether something was worth buying. It can tell you that it happened, on which day, for how much, and where the paper went.