# Ask your household anything

> Ask about your shared lists and expenses in plain language on the web. Get charts and tables, or have it add items and expenses for you.

Updated: 2026-10-09

The assistant reads your group's shopping lists and expenses and answers in plain language, with charts and tables when numbers help. It is in the web app; the iPhone and Android apps don't have it yet.

## What you can ask

- How much did we spend on groceries last month?
- Who has paid the most this year?
- Add pasta, tomatoes and parmesan to the shopping list.
- Log 45 euros for groceries, paid by me, split equally.

![The AI assistant answering a spending question with a chart](https://raw.githubusercontent.com/RaphaelMitas/flatsby/assets/web/web-chat.png)

## Your data and the AI providers

The assistant asks for your consent before it sends anything. Your messages, and the list items, expenses and member names a question needs, go to OpenAI or Google through the Vercel AI Gateway to generate the answer.

Automatic categories are separate from the assistant: when you add a shopping item or an expense, its name goes through the same gateway to a classification model so Flatsby can suggest a category.

Your email address and sign-in details are not sent to the AI providers. Data sent for the assistant is used to generate the answer, not to train models. AI usage numbers such as the model and token counts, without your messages, go to PostHog for analytics.

## Credits

The assistant and automatic categories use credits: 5,000 a month on the free plan, more on Starter and Pro. When credits run out, new items get the category Other until the next month. Lists, expenses and settling up never need credits.

## Questions

### Is Flatsby free?

Yes. Shopping lists, expenses, settlements and groups are free, with no member limit. The AI assistant and automatic categories use credits: 5,000 a month for free, 40,000 on Starter ($4.99 a month) and 100,000 on Pro ($9.99 a month on the web). On iPhone, Pro is $7.99 a month in the US App Store.

### What does the AI assistant do?

In the web app, you ask about your household in plain language. It reads your lists and expenses, answers with charts and tables, and can add items or expenses for you.

## More about Flatsby

- [Home page](https://www.flatsby.com/index.md)
- [A shared shopping list the whole flat can use](https://www.flatsby.com/features/shopping-lists.md): One shopping list for the whole flat on web, iPhone and Android, sorted by category, with who added each item. Free.
- [Split bills with your flatmates without a spreadsheet](https://www.flatsby.com/features/expenses.md): Log shared costs, split them equally, by percentage, by shares or exact amounts, and see who owes whom. Settle up with fewer payments. Free.
- [Ask your household anything](https://www.flatsby.com/features/ai-assistant.md): Ask about your shared lists and expenses in plain language on the web. Get charts and tables, or have it add items and expenses for you.
- [A Splitwise alternative built for shared flats](https://www.flatsby.com/splitwise-alternative.md): Flatsby vs Splitwise: no daily expense limit, no ads, a shared shopping list built in, and a Splitwise CSV import. Plus where Splitwise is better.
- [Free for the whole household](https://www.flatsby.com/pricing.md): Shopping lists, expenses, settlements and groups are free with no member limit and no ads. Starter ($4.99) and Pro ($9.99) add AI credits.
- [Questions about Flatsby](https://www.flatsby.com/faq.md): Answers about Flatsby: price, Android and iPhone, splitting rent by percentage, moving from Splitwise, privacy and the AI assistant.