BLOX review 2026: 0.25% plus spread, AFM authorisation, and who it suits

BLOX charges 0.25% per transaction, and that is "excluding any spread and slippage", as its own help page puts it. Since 30 September 2025, BLOX B.V. has been listed in the ESMA register of crypto-asset service providers with an authorisation from the Dutch regulator AFM. This article lines up the facts you need to decide whether the app suits you, and names the drawback most reviews skip.

What a purchase really costs

The fee is simple: 0.25% of the amount. On €100 that is €0.25. On top of that comes the spread, the gap between the price BLOX buys at and the price you pay. BLOX itself writes that the transaction fee is "excluding any spread and slippage"; how wide that spread is at any given moment is not published in one fixed place. So count on "0.25% plus something", not on 0.25%.

For comparison: Finst charges 0.15% with "no added spread". On €100 the difference between the two is therefore at least €0.10 per transaction, and in practice more, depending on BLOX's spread. Anyone who buys small amounts often will notice that over a year.

What the authorisation covers

In the ESMA register (as of 21 August 2026), BLOX B.V. holds an authorisation from the Autoriteit Financiële Markten since 30 September 2025 for three services: custody and administration of crypto-assets, exchange of crypto-assets for funds, and transfer services. The authorisation is passported to four EU countries. The full list per provider is on our MiCA page.

One detail: in its own communication BLOX gave 1 October 2025 as the start date; the register says 30 September. The register is what counts.

Who BLOX suits

BLOX is built for people who want one thing: to buy a small amount, in a few taps, in Dutch, without an order book. If that is what you are after, that is exactly what you get. The flip side is that there are no limit orders and no negotiable fee tiers; it is an app for buying and holding, not for trading.

If you invest a fixed amount every month and want to keep costs to a minimum, a provider without spread is the better fit. If simplicity matters most, BLOX does the job. Our comparison puts the providers side by side on fees and authorisation.

Conditions to get started

At least 18 years old, with a valid ID document in your own name. Opening an account for a child is not possible, not even with parental consent; BLOX's help pages say so in as many words. What that means for teenagers is in Buying crypto under 18.

Offer via Cryptocode

You can open an account through our BLOX page. Cryptocode receives a fee if you open an account through that link; it does not change what you pay. The terms and the date they were checked are on that page.

Frequently asked questions

Is BLOX trustworthy? BLOX B.V. has been in the ESMA register with an AFM authorisation since 30 September 2025 and is therefore under MiCA supervision. That says something about supervision and custody, not about the price of what you buy.

What does BLOX charge per transaction? 0.25% of the amount, excluding spread and slippage.

Can I send crypto from BLOX to my own wallet? The authorisation covers transfer services; how that works per coin and what it costs is in the app and BLOX's help pages.

Is BLOX cheaper than Finst? No. Finst charges 0.15% with no spread, BLOX 0.25% plus spread.

Sources

• BLOX Support, "What are the transaction fees at BLOX", last checked 22 August 2026.
• BLOX Support, "How old do you have to be to create an account?" and "Can I open an account for my child?", last checked 3 September 2026.
• Finst, "Fees", last checked 22 August 2026.
• ESMA register of authorised crypto-asset service providers, as of 21 August 2026.

Crypto is high-risk; you can lose your deposit. This is not financial advice.