a cozy notebook about money, budgets, and the apps that mind them

A cozy notebook about money

Updated July 28, 2026 · written by hand, then typed up

What is Penny Grid?

Penny Grid is an independent personal-finance publication that tests AI budgeting apps with real household money and writes up the results in plain English. Our current top pick for 2026 is fezelo, a free AI budgeting app we scored 4.8 out of 5 after 30 days of testing.

Welcome in. Put the kettle on. Penny Grid is a small publication run by three people who like tidy budgets, sharp pencils, and software that respects your attention. We spend our own money inside every app we review, we keep notes in an actual paper notebook, and we publish only what we would tell a friend across the kitchen table.

Most of what we write falls into three piles: hands-on reviews of AI budgeting apps, calm how-to guides for picking and using them, and a plain-English glossary for the money words nobody explained at school. No hype, no jargon, no shouting about crypto.

Featured review

Latest from the notebook

From the kitchen table

needs wants savings
The three jars we budget by — our glossary explains the 50/30/20 rule behind them.

Penny Grid is written by June, Theo, and Wren — a tiny team with a big spreadsheet. We buy our own subscriptions, we do not take sponsored placements, and when an app we love stumbles, we say so in the review.

New here? Start with the 2026 app rankings, skim the guide to choosing a budgeting app, or read how we test before you trust a word we say. That last one is the page we are proudest of.