Best Apps to Pay QR Codes in Argentina as a Foreigner (2026)

To pay QR codes in Argentina as a foreigner you need an app that opens with a passport, funds from abroad, pays Mercado Pago and MODO QR codes and can send pesos to an alias. In 2026 the realistic options are CacaoCash, WanderWallet, Moreta Pay and, with caveats, belo and Prex. Mercado Pago, Ualá and Lemon require an Argentine DNI.

This guide puts the eight apps a foreigner is most likely to try side by side: who can open each one, how you load it, what it pays, what rate and fee you get, and where it falls short. If you are new to the whole topic, start with how to pay QR codes in Argentina without a DNI and come back here to choose.

The short version: which app for which traveler

• Tourist for two weeks. Any of the three passport-only apps works: CacaoCash, WanderWallet or Moreta Pay. Pick by how you want to load money (bank transfer, card or crypto) and by fee. If you only need to scan QR codes and never send to an alias, Moreta Pay is enough; if you will pay a host or a tour by alias, choose one of the other two.
• Digital nomad staying months. The fee per payment starts to matter. WanderWallet charges US$0.20 plus 1% per payment and Moreta Pay 1.5% per QR; CacaoCash has no fixed fee per QR. If you have a Latin American residence, belo becomes an option with a wider crypto menu.
• Someone who needs to send rent or a deposit to an alias. You need alias, CBU and CVU transfers: CacaoCash, WanderWallet, belo, Prex, Lemon and Ualá do it; Moreta Pay does not. Among the ones that open with a passport and fund from abroad, that leaves CacaoCash and WanderWallet. More in send pesos to any alias, CBU or CVU.
• Someone who already has a DNI or residency. Open Mercado Pago, Ualá or Lemon: zero fee on QR and transfers, and a peso account of your own to receive money. Prex works with a passport plus proof of residency. The foreign-focused apps still help for loading dollars from abroad, since the local apps only fund from Argentine accounts or cash.

Comparison table (checked September 2026)

Assumptions: "Opens without DNI" reflects each app's published requirements, not what a given officer approves on a given day. "Fund from abroad" lists methods available to a foreigner without an Argentine account. Store availability was checked from the US on 28 September 2026. Rates and fees change often; check in each app before paying.

How each app works for a foreigner

CacaoCash

CacaoCash opens with a passport identity check and no Argentine DNI, CUIT or bank account. You fund it from abroad by ACH, SEPA, SWIFT, card, USDC or other crypto, then scan any Mercado Pago or MODO QR or send pesos to an alias, CBU or CVU. The peso amount and the crypto dollar rate are shown before you confirm, and there is no fixed fee per QR payment: the rate you see is the rate you get. What it does not do yet: it does not give you your own alias to receive pesos, so it is a way to pay and send, not a peso account. Details on the QR flow in pay QR codes in Argentina.

WanderWallet

WanderWallet opens with a passport or ID plus a selfie, no DNI or CUIL. You load it by ACH (US$2 + 0.3%, one to three days), SEPA (€1 + 0.5%), Revolut Pay or USDC on Polygon (free); it does not accept cards or Apple Pay. It pays Mercado Pago, MODO and Transferencias 3.0 QR codes and sends to alias, CBU and CVU, at its own crypto dollar rate. The fee is US$0.20 plus 1% per payment, on top of the deposit fees. Main limitations: it cannot receive pesos, an App Store review reports an ACH deposit stuck for several weeks, and a blogger reports a 1.4 million peso cap per transfer and per QR (unverified).

Moreta Pay

Moreta Pay accepts passports only (no national ID cards or driving licences) and verifies with a selfie. You fund it from a US bank via Plaid, SEPA, UK Faster Payments, Interac, USDC or USDT on Solana, or a Visa or Mastercard at 2.5% (minimum US$1.50). It pays merchant QR codes from Mercado Pago, Ualá, MODO, Personal Pay and BNA+, but not personal "receive money" QRs, and it has no alias, CBU or CVU transfers at all. The rate is mid-market plus a spread of about 0.6-0.75%, and the fee is 1.5% per QR payment; with a card top-up the all-in cost is roughly 2.5% plus 1.5% plus the spread. Trustpilot sits at 2.3 out of 5, with complaints about accounts frozen mid-trip in security review and slow support.

belo

belo takes a passport, but its help centre requires you to reside in one of 12 Latin American countries (Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Mexico, Panama, Paraguay, Peru, Uruguay, Venezuela). Whether a US or European passport holder with no Latin American residence passes onboarding is unverified. Funding is strong on crypto (USDT on nine networks, BTC, ETH, USDC, SOL) plus US ACH or wire at 0.5%, SEPA and Payoneer at 4%. It pays any interoperable QR and sends to CBU, CVU and alias, at its own crypto dollar spread (about 1.3% observed), with no published QR fee. Two limits for foreigners: the card, ATM and peso deposits need an Argentine DNI, and belo is not on the US App Store (only Argentina, Brazil, Mexico, Chile and Uruguay).

Prex

Prex accepts a passport, but its requirements include residency in Argentina: precaria, work visa or CUIL. A plain tourist is not eligible by policy; whether the app enforces it at signup is unverified. It cannot be funded from abroad ("no international transfers" in its own help centre; no card, no crypto), only from Argentine accounts, Rapipago cash or Payoneer at 2%. Once loaded, it pays Mercado Pago, MODO and Getnet QR codes at no cost, has its own CVU and alias, and converts at the official dollar (US$100 a month cap) or at MEP through bonds at 0.81%. Prex Uruguay and Chile users can pay Argentine QR codes from their home app.

Lemon

Lemon accepts one document only: a physical Argentine DNI. Its terms say the DNI is the only official identification that will be accepted, and Lemon Lite (Uruguay, Chile, Ecuador, Mexico, El Salvador) is crypto-only with no pesos and no QR. There is no route for a US or European national. For DNI holders it is a good app: every interoperable QR, payment in pesos, USDT, BTC or ETH, free transfers to any CBU, CVU or alias, 0.5% on the automatic crypto-to-peso sale and 1% BTC cashback. It is not on the US App Store.

Ualá

Ualá requires a valid Argentine DNI; foreigners can open it with an Argentine DNI plus CUIL. There is no passport route, whatever some third-party guides claim. It funds only from Argentine transfers, DEBIN or cash at Rapipago and Pago Fácil, with no foreign card, crypto or international method. For residents it pays interoperable QR and transfers for free and sells the official dollar 24/7 with an unpublished spread. For a tourist it is simply not openable.

Mercado Pago

Mercado Pago's signup screen asks for a DNI or a CUIT, then a document scan and facial recognition; the passport is not an option and no "Mercado Pago for tourists" product exists. Expats report that a CUIL or CDI enters the form but fails biometric validation. It funds only from Argentine bank transfers, DEBIN or cash, with no foreign card top-up and no crypto deposit. From a validated account it pays any QR with balance, debit or credit and sends pesos with no fee from balance (6.99-7.99% with a credit card). The one thing a tourist can do is hand a foreign card to a merchant's Mercado Pago terminal, which settles at the card network's tourist rate. Full detail in Mercado Pago for foreigners.

What the rate really costs you

The line that decides your cost in Argentina is not the fee, it is the rate. When you pay with a foreign card, or through any app that converts at the official or card-network rate, your dollars are exchanged at the non-resident rate. The passport-friendly QR apps convert at the crypto dollar, the rate at which dollars actually change hands inside the country. In 2026 the gap between the two is about 10%: an independent test in August 2026 got 1,509 pesos per dollar through WanderWallet against 1,378 through Visa, and expats on ExpatsBA put foreign cards at roughly 6% worse than QR apps.

That is why a 1% or 1.5% fee per payment matters less than it looks, and why an app with no fee but a bad rate can still be the expensive choice. Compare the peso amount each app shows on screen for the same dollar figure, not the fee line. The mechanics of the two rates are in card dollar vs crypto dollar, and the current numbers are on today's Argentine dollar rate. If your plan was to rely on a Wise or Revolut card, Wise vs Revolut in Argentina explains what rate those cards actually give you.

What travelers and expats say

• solsalute.com (June 2026, affiliate links) says the best app is Mercado Pago but you need a DNI to access it, and recommends downloading WanderWallet before the trip. Its WanderWallet review measured 1,509 pesos per dollar against 1,378 on Visa.
• bento.travel (August 2026) lists WanderWallet as a traveler wallet for QR and alias transfers without a local account, and states that Mercado Pago normally requires Argentine identity details, so it is not a useful tourist download. It does not mention belo, Lemon, Prex or Moreta.
• ExpatsBA forum (April 2026): members' top pick for QR was Peanut, funded only with USDT or USDC on Solana, with foreign cards described as about 6% worse than QR apps.
• ExpatsBA forum (August 2026, "Experience with Wander Wallet?"): an expat uses it for alias transfers because no bank would open an account with a passport, says the rate has been favorable every time, and notes that fees are higher than Peanut's; CacaoCash is mentioned in the same thread as a similar app with transfers.
• Reddit (search snippets from r/BuenosAires, r/digitalnomad, r/travel and r/asklatinamerica): locals use Mercado Pago but foreigners cannot access it without a DNI; advice is to pay with QR apps, never with a card; WanderWallet is named for tips and taxis, Peanut and Takenos for QR.
• argentinavisalaw.com (2026) warns not to build an arrival budget around assumed passport-only access to local banks and wallets.

Frequently Asked Questions

What is the best app to pay QR codes in Argentina as a foreigner?

It depends on what you need. For QR plus alias transfers with a passport and funding from abroad, CacaoCash and WanderWallet cover the most cases; Moreta Pay works for QR only; belo and Prex need Latin American or Argentine residency. If you already hold a DNI, Mercado Pago, Ualá or Lemon are free and let you receive pesos too.

Can a tourist use Mercado Pago in Argentina?

No. Signup asks for a DNI or a CUIT and there is no passport option or tourist product. A tourist can only pay a merchant's Mercado Pago terminal with a foreign card, at the card's tourist rate. See Mercado Pago for foreigners.

Which app has the best exchange rate?

The apps that convert at the crypto dollar (CacaoCash, WanderWallet, belo, Lemon) are within a few percent of each other, and the exact number moves every day. The real difference is the fee on top and whether the app does what you need, such as sending to an alias. The big gap is between any of them and paying with a foreign card at the non-resident rate.

Do I need to carry cash?

Less than before, but some. Most shops, restaurants, taxis and kiosks take QR, and the passport-friendly apps cover that. Keep some pesos for tips, small towns and the occasional place with no signal; the apps in this guide cannot withdraw cash for you at a bank counter.

Can I pay a QR code with a foreign credit card?

Not by scanning it from an app, since the local apps need a DNI and the foreign-friendly ones fund from bank or crypto rather than by linking a card at the QR. You can hand the card to a merchant's terminal, where it settles at the card network's tourist rate, which in 2026 is around 10% below the crypto dollar.