Sure

What it does

Sure is a personal finance app for the whole family. It brings your bank accounts, cards, savings, investments and property into one picture, shows your net worth over time, and helps you budget, spot regular bills and save towards goals. It is the community-run continuation of Maybe Finance. You can run it on your own computer or server, and AI help is optional.

• Net worth, cash flow and spending at a glance
• Budgets, automatically spotted bills and savings goals
• Rules that tidy up and categorise transactions
• Optional AI assistant, which can run on a local model

Great for: Households who want one private place for every account, from the current account to pensions and property.

Make it yours: ideas

Pick an idea to start from, or describe your own.

• Settings, no code Give it your family's name “Call the app 'Patel Family Money', in pounds, with UK dates and dark mode by default.” Start with this idea
• Settings, no code Sort spending automatically “Anything from Tesco, Asda or Lidl is Groceries; Shell and BP are Fuel; Deliveroo is Takeaway. Do it for old transactions too.” Start with this idea
• Settings, no code Email me about big payments “Email me whenever a single payment over £300 comes in from any of our accounts.” Start with this idea
• Settings, no code Saving for a house deposit “We're saving £25,000 for a deposit by 2028 across two savings accounts. Show how we're doing each month.” Start with this idea
• Extend: themes, plugins, API Ask questions about your money with a local AI “I want to ask 'how much did we spend on eating out this year?' but nothing should leave my house. Set it up with Ollama.” Start with this idea
• Code changes A simple page for the children's pocket money “Add a simple page for my kids that shows their savings account balance and a goal bar for the bike they want.” Start with this idea

How easy is it to adapt?

A large Rails app with a database, a background worker, Redis and many bank-sync providers. Upstream keeps detailed agent guides (AGENTS.md and docs/llm-guides/) and a strict design system, which helps an AI agent work safely. Your AI always tries the gentlest step first, so your version stays easy to update.

1. 1

   Settings 5 options

   No code. Change it in the app or its config.

   • Currency, language, date format and theme (light or dark) for the household.
   • Automatically set the category, merchant, tags or name of transactions, or send an email when one matches.
   • Monthly budgets by category, automatically spotted regular bills, and savings goals.
   • Sign-up rules, market-data provider, logo lookups and the AI provider.
   • Show your own name for the app, such as "Patel Family Money".
2. 2

   Extend 2 options

   Themes, plugins, webhooks and the API. Still no fork.

   • Scripts, phone shortcuts and outside AI assistants that read or add transactions.
   • Bring in bank statements or connect a bank, card or crypto account.
3. 3

   Code 2 options

   Your AI edits the source for anything else.

   • New screens and widgets, using the design-system components and colour tokens in app/assets/tailwind/sure-design-system.css.
   • New data or calculations, scoped to the family.

Can I trust it?

• AGPL-3.0-only. Free to use and change. If you run a changed version that other people use over the internet (not just your household), you must offer them your source code under the same licence. "Maybe" is a trademark of Maybe Finance Inc., so a fork must not use that name or logo and must say it isn't affiliated with Maybe Finance.
• Your data: stores personal data, on your own device or server. PostgreSQL (postgres-data volume), Redis for background jobs, uploaded files in the app-storage volume.
• Other services: OpenAI-compatible AI provider (OpenAI, or a local model such as Ollama), or Anthropic (optional, pay-per-use (or free with a local model)); Bank connections (Plaid, SimpleFIN, Enable Banking, Lunch Flow, Monobank and others) (optional, varies; some free, some paid); Market data (Yahoo Finance by default, or Twelve Data) (optional, free (Twelve Data has a free tier)); Brandfetch (optional, free tier); Email (SMTP) (optional, free with most providers)
• Pinned version c7a3748. Every handover uses exactly this code, which we've reviewed.
• Holds complete financial records. Set SECRET_KEY_BASE and a database password, use HTTPS (RAILS_ASSUME_SSL) and set ONBOARDING_STATE to closed or invite_only before exposing it to the internet.
• The AI assistant and bank-sync providers send financial data to outside services. Use a local model to keep AI questions at home.
• API keys, bank-provider tokens and SMTP passwords are secrets. Never paste them into an AI chat.

Did it work for people?

Tell us how it went

For your AI

The project pack has the pinned version, how to run it, and where to customise it. Your prompt links to it automatically.

https://handoff.bespokeai.software/p/sure/c7a3748/pack.md

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