You’ve got a bit of Bitcoin, some euros coming in from work, and a nagging question: should all of that live in one app, or two? It sounds trivial until you actually try to spend the crypto, or move your euros, and realise the tool you picked wasn’t built for the other half of the job. Choosing between a dedicated crypto wallet app and a financial app with crypto built in is really a choice about what you want to do day to day — hold and trade, or hold, convert, and spend. This guide walks through the difference so you don’t end up juggling two apps when one would do, or trusting one app with a job it can’t finish.
It matters more than it used to, because crypto is no longer a niche hobby in Europe. The European Central Bank’s
Financial Stability Review (November 2025) found that around 9.7% of euro area households now hold crypto-assets. Most of those people aren’t day-traders — they’re ordinary users who at some point need their crypto to become spendable euros. That’s exactly the seam where these two kinds of app behave very differently.
What is a crypto wallet app?
So what is a crypto wallet app, exactly? It’s software built for one thing: storing, sending, and receiving cryptocurrency. Under the hood, a crypto wallet app — including any crypto wallet app Europe users reach for — manages your keys — the cryptographic proof that you control a certain amount of crypto on the blockchain. A mobile crypto wallet puts that in your pocket; some are non-custodial (you alone hold the keys), some are custodial (a provider holds them for you).
That focus is its strength and its limit. A dedicated wallet is great at crypto and usually does nothing else: it won’t give you a euro IBAN, it can’t send a SEPA transfer to pay your rent, and it won’t issue a card you can tap at a shop. If your entire need is “hold some coins and occasionally move them,” that’s fine. The friction shows up the moment you want those coins to become fiat.
How do crypto wallets work in practice? You get a wallet address for each asset, you share it to receive, you paste someone else’s address to send, and the blockchain does the rest. Many beginners start here — a crypto wallet for beginners is often just a free app from an exchange. It teaches you the basics, but it leaves the euro side of your life in a separate place entirely.
What is a financial app with integrated crypto?
A financial app with crypto comes at the problem from the other direction. It’s built around everyday money — a payment account with an IBAN, a payment card, SEPA transfers — and then adds an integrated crypto service on top. The point is that euros and crypto live in the same place. You can receive crypto, convert it to euros, and spend those euros with a card, without ever leaving the app or emailing yourself an address.
The Blackcat app is built this way: an integrated crypto service sits alongside a EUR payment account, so you can receive Bitcoin, Ethereum, USDC from an external wallet, convert them into euros, and then spend or send those euros. It’s effectively a
crypto and euro wallet in one — a
crypto wallet app and a financial account that talk to each other instead of living in separate silos.
An integrated crypto exchange and custodial crypto wallets are provided by our partner MANERIO Sp. z o.o. You can find more information at https://maner.io/
The trade-off is custody. An integrated crypto service is typically custodial — the provider holds the keys on your behalf, the same way a payment institution holds your euro balance. For most everyday users that’s a fair deal: you swap absolute self-custody for the convenience of a wallet app for crypto and euros that just works. If you’re holding a fortune for a decade, you might feel differently — more on that below.
The core differences, side by side
Here’s the honest comparison. The two app types overlap on holding crypto and diverge on almost everything to do with euros:
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Crypto wallet app
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Financial app with crypto
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EUR (IBAN) account
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No
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Yes
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SEPA transfers
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No
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Yes
|
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Payment card
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No
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Yes (virtual / plastic)
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Hold crypto
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Yes
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Yes
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Convert crypto to EUR in-app
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Sometimes
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Yes
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Custody model
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Often self-custody
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Typically custodial
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Caption: how a dedicated crypto wallet app and a financial app with integrated crypto compare across everyday-money features. Source: Blackcat product analysis, 2026.
Notice the pattern. A crypto wallet with payment card is not something dedicated wallets offer — cards belong to the financial-app side. If you want a multi currency wallet with card plus crypto, you’re describing a financial app, not a pure wallet.
Can one app manage crypto and euros?
Yes — if it pairs an IBAN payment account with an integrated crypto service. That’s the whole proposition: one place to manage crypto and euros without shuttling funds between platforms. Can one app manage crypto and euros well? It can, and the practical wins are real: fewer transfers, fewer addresses to copy, one balance to look at.
Worked example: Marek, a developer in Kraków, gets a 0.01 BTC bonus from a client. In a dedicated wallet, he’d have to send it to an exchange, sell it, wait, then withdraw euros to his bank — three apps, two days. In a financial app with an integrated crypto service, he receives the BTC, converts it to euros in a couple of taps, and pays for groceries with the card that afternoon. Same crypto, far less friction.
Should you keep crypto and euros separately?
Sometimes, yes. If crypto is a long-term investment you rarely touch, splitting it off into a dedicated (possibly self-custody) wallet can make sense — you’re optimising for security and patience, not for spending. If you actively receive crypto, get paid in it, or want to turn it into euros regularly, one integrated app is simpler and faster. Many people do both: a financial app for the crypto they’ll spend, and a separate cold store for the stack they’re holding for years.
What beginners should check first
Before you pick an app, run down this short list:
- Which coins it supports — Bitcoin, Ethereum, USDC?
- Custodial or self-custody, and do you understand the difference?
- Can you convert crypto to euros inside the app, or do you need a separate exchange?
- Is there an IBAN account and SEPA transfers, if you need to move euros?
- What are the conversion fees, and are they shown clearly?
- Is the provider licensed and regulated?
Get those answers and the choice usually makes itself. If your life is mostly euros with some crypto running through it, a financial app with an integrated crypto service is the path of least resistance. If you’re a pure holder, a dedicated wallet may be all you need.
FAQ
What is a crypto wallet app?
Software built to store, send, and receive cryptocurrency by managing your keys. It focuses on crypto and usually doesn’t offer euro accounts, cards, or SEPA transfers.
What is the difference between crypto wallet and financial app?
A crypto wallet handles only crypto. A financial app manages everyday money — IBAN, card, SEPA — and may add an integrated crypto service so both live in one place.
Where should I keep crypto and euros?
Yes, if the app combines an IBAN payment account with an integrated crypto service. You can receive crypto, convert to euros, and spend without switching apps.
What is an integrated crypto service?
Crypto functionality built into a financial app, letting you hold, send, receive, and convert crypto alongside your euro balance.
Can I convert crypto to euros in an app?
In many that include an integrated crypto service, yes — and the converted euros land in your payment account, ready for the card or a SEPA transfer.
Should I keep crypto and euros separately?
For long-term holdings, a separate (often self-custody) wallet can make sense. For active use and spending, one integrated app is simpler.
Can a crypto wallet app include a payment card?
Dedicated wallets generally don’t. A card belongs to the financial-app side, where a crypto wallet with payment card really means a financial app with integrated crypto.
Is a crypto wallet app good for beginners?
Supported coins, custody model, in-app EUR conversion, IBAN and SEPA support, fees, and whether the provider is regulated.
This article is general information, not legal, tax or financial advice. For your personal situation, consult a qualified professional.