Personal finance · checked 2026-10-19

Can I vibecode Monarch Money?

KINDA· weekend project

The budgeting half of Monarch fits in a local app in one sitting: accounts, transactions, categories with rules, monthly budgets, net worth over time and a few reports. The paid half is the connection to 13,000+ banks, cards and brokerages, and a prompt can't reproduce that. A cheap aggregator exists: SimpleFIN Bridge costs $15 a year and Actual Budget already uses it, but it refreshes about once a day and pulls 90 days at a time. Without it you have a ledger fed by downloaded files, and you lose the thing most people pay for, transactions that simply arrive.

$14.99/moprice

$180you'd save a year

weekendbuild time

—people replaced it

Before you start

What you need on hand.

DifficultyIntermediate · Some system setup or keys.

TimeAn evening with file imports only; a weekend with SimpleFIN sync

Claude Code, Codex or CursorAny of them can run the prompt.
Node.js 22better-sqlite3 compiles a native module, so build tools must be installed.
Your Monarch exportsTransactions and balances as CSV; both stay available after a subscription ends.
A SimpleFIN Bridge accountOptional, $15 a year. Refreshes about once a day and pulls up to 90 days per sync.

Before you buildMonarch has no free plan, only a 7-day trial. If you would rather not build, Actual Budget is free to self-host and already syncs through SimpleFIN.

1. Install one agent: Claude Code, Codex, Cursor.
2. Make an empty folder and open it in the agent.
3. Paste the prompt below, press enter, and answer its questions as it builds.

The prompt

Build me a personal budgeting and net-worth tracker to replace Monarch Money. Requirements:

- Node.js 22 + TypeScript: a Fastify API and a React front end built with Vite.
`npm start` serves http://127.0.0.1:4840 only.
- Storage: better-sqlite3 in ./data/money.db. Money is integer cents and every write runs in a
transaction. Tables: accounts (type, institution, currency), balance snapshots (one row per
account per day), transactions (date, amount, merchant, category, notes, tags), categories with
groups, rules and budgets.
- Import: CSV (`papaparse`) and OFX/QFX (`ofx-js`) with a column mapping saved per account and
duplicate detection by FITID, or by date + amount + merchant. Add a preset for Monarch's own
transactions CSV and balance-history CSV, and read the header row of a real export rather than
guessing column names.
- Optional bank sync: when SIMPLEFIN_ACCESS_URL is set in .env, a nightly job pulls accounts and the
last 90 days of transactions from SimpleFIN Bridge, inserts the new rows and records a balance
snapshot. Without it the app works fully on imported files.
- Rules: "merchant contains X, amount between A and B" sets a category, renames the merchant or adds
a tag. A "re-run rules" button shows how many rows would change before it applies anything.
- Budget: a monthly amount per category group with spent, remaining and a rollover switch; a month
view with progress bars and an overspent list.
- Net worth: a line chart of balance snapshots with assets and liabilities apart; manual accounts
(home, car, loan) editable by hand.
- Reports with Recharts: cash flow by month, spending by category with a click-through to the
transactions, and recurring charges found from merchants that repeat monthly or yearly.
- Single user. No accounts, no telemetry, local-first. Outbound calls: SimpleFIN only, and only if
configured.
- Out of scope: Plaid, investment holdings, receipts, sharing with a partner, mobile apps, AI chat.
- README: setup, the .env keys, how to export the CSVs from Monarch, how to back up ./data, and a
warning that the SimpleFIN access URL is a credential to keep out of git.

Opens your agent with the prompt filled in, you press enter. Or copy it and paste it into an empty folder.

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Then keep going

Next prompts, same folder.

The first prompt builds the core. Run these one at a time in the same folder to grow it into your own Monarch Money.

Add a Monarch importer to the budgeting app in this folder. Requirements:

- A command `money import-monarch --transactions <csv> --balances <csv>` for the two files
  Monarch exports (transactions from Settings > Data, balances from the Accounts tab).
- Read each header row, print the mapping chosen and stop on any column it cannot place.
- Create accounts and categories that do not exist yet, keep Monarch's category names, and keep
  tags and notes. Skip rows already present by date + amount + merchant + account.
- `--dry-run` is the default and prints counts of new, skipped and unmatched rows; `--apply`
  writes. Running it twice must change nothing.
- Update the README with the export steps and the 5,000-row guidance for long histories.

Add recurring-charge tracking to the budgeting app in this folder. Requirements:

- Detect merchants charged at a steady interval (weekly, monthly, yearly) within 3 days and 10% of
  the amount, show them on a Recurring page with next expected date and yearly cost.
- Let me confirm, rename or dismiss each one; confirmed items stay even if a charge is skipped.
- A daily job emails through nodemailer SMTP a list of charges expected in the next 5 days, and
  flags any charge that rose by more than 10%.
- Update the README with the SMTP keys.

Add a monthly summary to the budgeting app in this folder. Requirements:

- On the first day of each month a job (`node-cron`) builds a plain HTML email: spending by
  category against budget, the five biggest transactions, net-worth change and any overspent
  groups.
- Send it through nodemailer SMTP from .env; a `money summary --month YYYY-MM --print` command
  prints it without sending.
- Use no remote images or trackers; all numbers come from the local database.
- Update the README.

What you lose

Automatic syncing with 13,000+ banks, cards and brokerages
Phone and iPad apps, and a partner who sees the same household data
Investment performance, equity compensation and the Zillow and Coinbase connections
Receipt scanning with itemised categorisation
The AI Assistant and the weekly summary of spending and net worth

Why people still pay

Linking accounts is the chore Monarch removes: transactions show up already categorised, balances stay current and a partner sees the same numbers. Its own pitch is that members, not advertisers, fund it, which matters to people who tried free tools that sold attention or left them importing files by hand.

Moatintegrations execution polish switching costs

Do the math

Monarch Money or your own copy?

Over

Your usage

Count my time12h ×$/h

Monarch Money, 1 yr$180

Your own copy, 1 yr$20running + build session

You keep$160pays for itself in the first month

Estimate · Runs on your own machine. SimpleFIN Bridge is the only running cost, $15 a year if you want bank sync. The build is token usage on your agent plan.

Leaving Monarch Money

Take your data, then cancel.

1 · Take your data out of Monarch Money

1All transactions: on desktop, open Settings > Data and choose Download Transactions for one CSV across every account.
2One account: open Accounts, pick the account, choose Edit in the top right, then Download transactions or Download balance history.
3All balances: on the Accounts tab, find the summary box on the right and click Download CSV.
4Monarch recommends downloading 5,000 transactions or fewer at a time; split long histories by date range.
5Budgets, rules and goals have no export in what we read: screenshot them before you leave.

2 · Cancel Monarch Money

1On the web, open Billing Settings, choose Manage subscription, then Cancel Subscription.
2After you cancel you keep access for the time left on the subscription.
3Subscribed through the App Store or Google Play? Cancel there; Monarch staff can't see Apple subscription details.
4The money-back guarantee lets you request a refund for the remaining time at any point after purchase; App Store subscriptions are not eligible.

Monarch's help page says you can download your full balance and transaction history from Settings even after a subscription or trial ends, but export before you cancel anyway.
Transaction categories travel in the CSV; rules, budgets and goals do not, so write them down.
Monarch recommends subscribing on the web for easier management, and a web subscription is the one the guarantee covers cleanly.
Check which of your banks the replacement can reach before you cancel: SimpleFIN refreshes about once a day and pulls at most 90 days per sync.

Checked 2026-10-19 against Monarch Money's docs: 1, 2, 3, 4, 5

The escape hatch

Don't feel like building it? These are already free.

Actual BudgetOpen sourceMIT local-first envelope budgeting with rules, reports and bank sync through SimpleFIN Bridge for North America.★ 30k · active Oct 2026 · docker to self-host
Web, Windows, macOS, LinuxVisit ↗Firefly IIIOpen sourceAGPL-3.0 self-hosted double-entry finance manager with budgets, rules and a REST API; bank imports run through a separate importer.★ 25k · active Oct 2026 · docker to self-host
WebVisit ↗SureOpen sourceAGPL-3.0 community fork of the abandoned Maybe Finance app: accounts, net worth and budgets, self-hosted with Docker.★ 11k · active Oct 2026 · docker to self-host
WebVisit ↗

All 4 free alternatives to Monarch Money ›

The numbers

Monarch Money pricing

Plan	Monthly	Annual, per month	What you get
Core	$14.99	$8.33	Net worth across accounts, two budgeting approaches, custom reports, savings and debt goals, connections to 13,000+ institutions, receipt scanning, an AI Assistant, a weekly summary, a free partner and read-only sharing with a professional, on web, mobile and iPad.
Plus	—	$16.67	Everything in Core plus retirement forecasting, scenario modelling, business income and P&L tracking with tax-prep exports, advanced investment analysis and creating a will.

Billing: Core is $14.99 billed monthly or $99.99 billed yearly; Plus is shown only at $199.99 a year. Monarch recommends signing up on the web rather than through the Apple or Google stores for easier management. A money-back guarantee covers the remaining time on a subscription if you ask, except for App Store subscriptions.
Hidden costs: Forecasting, scenario planning, business P&L and the deeper investment analysis need Plus at $199.99 a year. Subscriptions bought through the Apple App Store are managed and refunded by Apple, not Monarch.
Source: www.monarch.com

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Questions

Monarch Money, briefly

Not answered here? Tell us and we'll add it.

Ask a question ›

No free plan; every signup starts with a 7-day trial, and the page says a payment method is required.

Kinda. The core is a weekend build with the prompt on this page, but real gaps remain: Automatic syncing with 13,000+ banks, cards and brokerages, Phone and iPad apps, and a partner who sees the same household data.

About $14.99 a month on the Core plan, $179.88 a year (checked 2026-10-19).

Automatic syncing with 13,000+ banks, cards and brokerages; Phone and iPad apps, and a partner who sees the same household data; Investment performance, equity compensation and the Zillow and Coinbase connections; Receipt scanning with itemised categorisation; The AI Assistant and the weekly summary of spending and net worth. If any of those matter to you, keep paying.