There is no single best AI budgeting app yet, and the three most-asked-about ones are built for different people. Monarch is a bank-linked tracker for US and Canadian households with AI built into categorization and a chat assistant. YNAB is a hands-on budgeting method with bank import in the US, Canada, the UK and parts of the EU. Richify is a manual-entry AI coaching app aimed at net worth, not transaction budgeting.

How we checked this

We read each product’s own pricing, feature and help pages on September 24 and 25, 2026, plus Richify’s “best AI personal finance app” page, which we treat as a vendor claim, not evidence. Every price and feature below links to the page it came from. Facts checked on September 24, 2026.

The three apps side by side

The documents alone show that these are not three versions of the same product. Monarch and YNAB pull transactions from your bank. Richify does not connect to banks at all, which changes what “AI budgeting” can mean inside it. Here is what each company says about itself.

Richify Monarch YNAB
Core idea AI “agent team” for net worth and planning (Richify) Bank-linked tracking and budgeting with AI built in (Monarch help) Hands-on budgeting with transaction import (YNAB pricing)
Bank connection None; manual entry only (Richify) Plaid, Finicity and MX (Monarch help) Direct import from “select US, Canadian, UK, and EU Banks”; file import elsewhere (YNAB pricing)
Where it works Lists 17 countries and regions on its homepage (Richify) “Currently only available in the US and Canada” (Monarch FAQ) Bank import in US, Canada, UK and some EU countries (YNAB support)
Currencies Multi-currency net worth (vendor claim) (Richify) USD or CAD only, no conversion (Monarch help) One currency per plan (YNAB pricing)
AI features stated Felix “AI CFO” plus seven named specialist agents AI assistant, insights, weekly recap, auto-categorization, transaction enrichment
Price Free with message cap; Pro $9.99/month or $99/year Check Monarch’s site at signup; 7-day trial, 30% off first year with code WELCOME $14.99/month or $109/year
Trial 7 days 7 days (“Your first week is on us”) 34 days, no card needed when signing up directly

What does “AI” actually do in each app?

Monarch has the longest list of documented AI features. Its help article AI in Monarch, updated September 10, 2026, lists an AI Assistant for conversational questions about your data, AI Insights that surface patterns, a Weekly Recap, auto-categorization, transaction enrichment with an “Explain this transaction” option, and a retail extension with receipt scanning. Two details matter. First, Monarch says some AI is “integral to how Monarch works and can’t be opted out of, such as AI-based transaction categorization,” while the assistant is optional. Second, it names its model providers: OpenAI, Anthropic and Google. It says it sends “the minimum data that’s strictly necessary,” does not let partners train on your personal data, and that data is “not retained or stored by third-party models after processing.” These are company statements, not independently audited. Our privacy walkthrough explains what questions to ask of any app that sends bank data to a model.

Richify describes itself as an “AI agent team for personal finance” led by Felix, an “AI CFO” who coordinates seven named specialists (Richify): Ada scores financial health, Lily teaches basics, Pepper builds long-term plans, Morgan tracks mortgage rates and refinancing math, Dua coaches “the emotional side of money,” Charlie plans life events, and Sam runs what-if scenarios. The AI here is a coach that works from the numbers you type in. Richify’s homepage stresses tracking of stocks, crypto and real estate for net worth. Richify also states it is “for educational purposes only — not financial advice” and “not a licensed investment advisor.”

YNAB is the odd one out. Its pricing page lists account syncing, transaction import, debt tools with a loan calculator, goals, and sharing with up to six people. If you want an AI layer on top of YNAB, a general assistant with the right prompts is one route; see our 20 prompts that make an AI actually useful for your budget.

Which categorizes most accurately?

What the pages tell us is how each app gets to a category. Monarch uses AI-based categorization as a core part of the product, and says you cannot switch it off (Monarch help). That makes its accuracy easy to check yourself: import a month and count the fixes. YNAB imports transactions through its direct importer (YNAB pricing), and the budgeting method assumes you assign and review each one yourself. Richify has no bank feed, so there is nothing to auto-categorize. Whatever you type, you label.

So “error” means different things: in Monarch a wrong category is the app’s mistake, in YNAB an uncategorized transaction is the method working as designed, and in Richify the error rate is yours. For the kinds of mistakes AI tools make with money, see our guide to where AI gets money wrong.

Which finds subscriptions reliably?

Monarch’s help pages mention insights, recaps and transaction enrichment (Monarch FAQ). Richify cannot detect subscriptions from a bank feed because it has none; you would have to enter them yourself.

If you are sorting through AI subscriptions in particular, our AI subscription cost calculator shows what the common ones cost per year.

Which works without a US bank?

This is where the documents give the clearest answers.

Monarch says plainly: “Monarch is currently only available in the US and Canada. At this time, we recommend connecting accounts only in USD or CAD currencies” (Monarch FAQ, updated September 12, 2026). Its currency article adds that the app “does not differentiate between currencies behind the scenes and does not perform any currency conversion,” so mixing a euro account with a dollar account produces wrong totals. It also says Monarch “does not have plans to expand currency support in the near future” (Monarch help, updated April 24, 2026). Its data providers are Plaid, Finicity and MX, and it notes that some Canadian banks are hard to connect (Monarch help).

YNAB reaches further. Its pricing page says direct import covers “select US, Canadian, UK, and EU Banks,” with file-based import for other regions (YNAB pricing). In February 2025 YNAB added Plaid as a European import provider (YNAB What’s New, February 5, 2025). Its Europe help article is tagged for the UK, Germany, Ireland, France, Finland, Lithuania, the Netherlands, Poland, Portugal, Spain and Austria (YNAB support). Coverage is bank by bank, so check your own bank before paying. The limit is currency: one currency per plan.

Richify sidesteps bank coverage by not linking banks. Its comparison page claims “multi-currency net worth tracking across 7 countries” and names the US, Australia, Canada, the UK, Brazil, Spain and China, while its homepage lists 17 countries and regions, including India, Japan, Germany and Mexico (Richify; Richify comparison page). The two pages do not agree. If you live between currencies, our Money without borders section covers accounts and cards that handle this better than any budgeting app.

What they cost

YNAB: $14.99 a month, or $109 a year (which YNAB describes as $9.08 a month), taxes extra. The free trial is 34 days with no card required when you sign up directly; app stores may ask for a card. College students get a free 365-day trial with proof of enrollment. One subscription can be shared with up to six people (YNAB pricing).

Richify: free on iOS and Android with a message cap on Felix. Pro costs $9.99 a month or $99 a year and unlocks unlimited Felix and the specialist team. There is a 7-day trial (Richify comparison page).

Monarch: its pricing page offers “30% OFF your first year with code WELCOME” and says “your first week is on us.” Check the price on Monarch’s site at signup. Monarch says it is ad-free and its revenue is “entirely subscription-based.”

Richify’s “best app” claims, labeled

Richify’s page titled best AI personal finance app, last updated July 2026, is marketing by Richify about Richify. We report its claims so you can test them, not because they are established:

  • Vendor claim: Richify is “the best AI personal finance app in 2026.”
  • Vendor claim: it is “the only app with a full multi-agent AI team.”
  • Vendor claim: “No bank linking required” is a privacy advantage, since no data broker is involved.
  • Vendor claim: its homepage says it has over 40,000 users managing more than $1 billion in assets (Richify).

The privacy point is real as far as it goes: if you never link a bank, no aggregator holds your login. The cost is that every transaction is typed by hand, which is exactly the work most people want a budgeting app to remove. The claim that Monarch is US-only is broadly consistent with Monarch’s own FAQ, which says US and Canada.

Where it goes wrong

  • Mixed currencies in Monarch. Linking a non-USD or non-CAD account gives totals that look right but are not, because nothing is converted (Monarch help).
  • Assuming YNAB covers your European bank. Coverage is “select” banks in listed countries. Check the list, and plan on file import if yours is missing.
  • Treating Richify as a transaction budget. Its pages describe net worth, planning and coaching on data you enter. Without a bank feed it cannot catch a charge you forgot to type.
  • Trusting AI answers about your money without checking. Every chat assistant can misread a transaction. Compare any answer that drives a decision against your statement. None of these apps is a licensed advisor; for tax, debt or investment decisions, talk to a qualified professional.
  • Forgetting the renewal. Two of the three trials last seven days. Put the date in your calendar.

Go deeper