Euporia, the personal-finance app I'm building, has an AI weekly review: it reads your week's numbers, writes a short summary and suggests what to look at. One rule shapes it: the AI can explain and point, but it never changes your numbers. This piece explains why, and what that looks like in the app.
A suggestion is something shown to you, with where it came from, that only changes anything if you act on it.
Why not let the AI act
Language models are good at reading messy text and summarising it. They can also be confidently wrong. In most apps a wrong guess is a small annoyance. In a finance app it quietly changes a total you might base a decision on.
There's also trust. If numbers change and you don't know why, you stop trusting all of them, including the correct ones.
What it looks like in Euporia
The review reads, it doesn't write. It summarises your week and suggests where to look, and each suggestion links to the part of the app it's about. Nothing it says changes a transaction or a total.
It never gives investment advice. Before a review is shown, a guardrail removes any sentence that recommends buying, selling or holding an investment, or predicts the market.
Your numbers keep their source. Every transaction says whether it was imported from a file or added by hand. More on that in Where every number comes from.
What it costs
It's slower than letting the AI do everything: you still make the changes yourself. If Euporia starts reading receipts or suggesting categories, the same rule applies: a suggestion you accept or change, never a silent edit. The answer to slowness is making review faster, not skipping it.
What's next
Euporia is in private beta. Read more on the Euporia page.