"Multi-currency" gets used two different ways in app-store listings, and the gap between them is exactly where expats get burned. Some apps track balances in more than one currency and convert them correctly over time. Others just let you pick a currency symbol and call it a day.
The short version: two of the biggest names in US budgeting apps are USD-only and cannot represent a life that spans borders, no matter how good their reviews are. A handful of tools actually do multi-currency, each in a different way. Here is what each one gets right, what it costs, and where it still falls short — checked as of September 2026.
What "multi-currency" should actually mean
Before the list, three questions are worth running against any app that claims multi-currency support:
- Can an account hold its own currency? Not just display a symbol — actually keep a EUR balance as EUR, not as a USD number with a label stuck on it.
- What happens to the rate after the transaction posts? Some apps convert once and move on. Others re-price your whole history every time you open the app, which means last year's numbers quietly change.
- Can a budget limit live in a different currency than your spend? If you earn in one currency and spend in another, a single-currency budget lies to you in both directions.
Keep those three questions open while you read the rest of this.
Rasa Money
Pricing: Basic is free (single-currency); Pro is $9.99/month or $119.99/year, with a 7-day trial and 30% off the first payment via code FOUNDER. Multi-currency: Yes, on Pro — unlimited currencies, accounts in their own currency, budgets in one currency while spend lands in others. Rate handling: Every transaction locks the exchange rate on its own date, permanently. History never re-prices, even after a base-currency change. Bank sync: None, by design — import a CSV/XLSX statement or enter transactions manually. Best for: People who want the rate-permanence guarantee specifically, and are comparing apps on that exact question rather than on automatic bank feeds. See the full comparison hub for how we stack up against the rest of this list.
Lunch Money
Pricing: Pay-what-you-want annual from $60/year, or $10/month, as of 2026. Multi-currency: Yes — 90-plus currencies, plus native crypto-wallet sync with Coinbase, Kraken, and similar platforms. Rate handling: Converts across currencies at transaction time. We have not tested how it treats a transaction's rate months after it posts — worth checking directly if that is the deciding factor for you. Bank sync: Via Plaid, across the US, Canada, the UK, and 30-plus European countries. Best for: Anyone who wants a live-synced crypto portfolio alongside multi-currency budgeting. Full comparison: Rasa Money vs Lunch Money.
PocketSmith
Pricing: Free plan available; paid tiers from roughly $9.99 to $26.66/month, billed yearly. Multi-currency: Yes, on every plan including free — accounts and forecasts in multiple currencies, with exchange rates that update automatically each day. Rate handling: Daily rate updates are the opposite trade from a locked rate: useful for a current picture, less useful if you need last March's numbers to stay exactly as they were. Bank sync: International bank feeds where supported, plus manual import. Best for: Long-range cash-flow forecasting — calendar projections years out — more than transaction-level rate permanence. We have not published a dedicated comparison page for PocketSmith; this summary is a good-faith read of their public pricing and feature pages, not an audit, so verify directly before deciding.
YNAB (You Need A Budget)
Pricing: $14.99/month or $109/year — one plan, no tiers. Multi-currency: Not really. Each budget runs in a single currency; a foreign-currency transaction converts at the rate on the day it is imported, then behaves like any other line in that one currency. Rate handling: Not applicable at the budget level — see above. Bank sync: Widely supported, expanding beyond the US; the zero-based budgeting method is the real draw, with a large community behind it. Best for: People who live and spend in one currency and want a proven budgeting method. If your money regularly crosses currencies, this is the app on this list most likely to disappoint you. Full comparison: Rasa Money vs YNAB.
Mainstream bank-sync apps: Monarch Money, Copilot, and similar
Pricing: Monarch Money is $14.99/month or $99.99/year (a $199/year Plus tier was added in 2026). Copilot is $13/month or $95/year. Multi-currency: No. Both are USD-only as of 2026 — no international bank connections, no currency conversion, everything shown in dollars regardless of where the money actually is. Bank sync: Their core strength — automatic feeds, where supported, mainly US and Canada. Best for: People who bank entirely inside the US and want automatic feeds above everything else. If you have any financial life outside the US — a foreign account, a foreign-currency debt, income in another currency — neither app can represent it. This is the single most common mistake expats make when shopping by app-store ranking instead of by feature. Category comparison: Rasa Money vs bank-sync apps.
A spreadsheet
Pricing: Free, if you already own Sheets or Excel. Multi-currency: Whatever you build. Fully flexible, fully your own responsibility to maintain. Rate handling: The most common failure mode on this whole list: a live rate formula that quietly recalculates every historical row to today's rate the moment you reopen the file, months after the fact. Best for: A one-off model or a structure so specific that nothing else fits. Full comparison: Rasa Money vs a spreadsheet.
How to actually choose
Run whichever app you are considering through the three questions from the top of this page, using your own numbers — not a demo account.
- Open, or ask about, an account in a currency you do not earn. Does it stay in that currency, or does it get folded into one number?
- Find a transaction from several months ago. Does its converted value match what you remember, or has it quietly moved with the market?
- Set a budget limit in one currency and spend in another for a week. Does the app tell you something useful, or does it just add two numbers that do not belong together?
If an app fails any of those against your real data, no amount of polish or app-store rating fixes it later.
The full plan breakdown is on pricing. Start free on Rasa Money — no card, no bank connection — and the three questions above are exactly what Pro is built to answer.