21bitcoin vs OKX Comparison

21bitcoin has established itself as an Austrian Bitcoin app across German-speaking Europe and deals exclusively in Bitcoin. On instant purchases the provider charges a service fee of 1.49%, or 1.29% with a referral code; limit orders and instant sales cost 1.49%, and OTC orders from €100,000 cost 0.49% to 0.99%. In the savings plan no service fee applies from day 8 onwards, while the first seven days cost 0.99%. According to 21bitcoin, euro deposits, account management and Bitcoin custody are free of charge; a euro withdrawal costs €1.

Austria’s Financial Market Authority (FMA) granted FIOR Digital GmbH authorisation as a crypto-asset service provider under Article 63 of the EU’s MiCAR regulation by decision of 27 November 2025, so a clearly identifiable European supervisor stands behind the app. Customer Bitcoin is kept separate from the company’s own holdings; the cold-wallet keys are held by BitGo Europe GmbH, which itself holds a MiCAR authorisation from BaFin.

The savings-plan approach is refreshingly uncomplicated: purchases run hourly, daily, weekly, every two weeks or monthly from the euro balance, and the flat wallet-transfer fee of 0.00001 BTC is widely seen as fair. Users single out the automatic transfer to a personal wallet above defined thresholds as a genuinely useful security feature. 21bitcoin now also offers limit orders at a target price and variable interest of 1.21% p.a. on the euro balance; the interest is granted by Volksbank Raiffeisenbank Bayern Mitte eG, and 21bitcoin converts it into Bitcoin free of charge on request.

Because Bitcoin is the only asset on offer, 21bitcoin is not aimed at investors who want a broad crypto portfolio, a limitation some users do point out. Two-factor authentication in the app and the €10 minimum order are also seen as leaving room for improvement. That makes 21bitcoin a good fit for Bitcoin-focused investors in German-speaking Europe who save regularly and care about automatic wallet transfers and Austrian regulation.

In short: OKX is one of the large international crypto exchanges and serves investors in the EU through OKX Europe, licensed under MiCA in Malta. You can trade more than 280 crypto-assets, from 0.10% maker and 0.20% taker on a spot-only account, or from 0.08% and 0.10% with a spot and derivatives account. Add futures up to 10x, trading bots, tokenised stocks, a recurring-buy savings plan and the OKX Card. If you want a regulated exchange with a wide range of features and low fees, OKX is a strong choice.

Is OKX safe and licensed in the EU?

Yes, OKX may serve customers across the EU. OKX Europe Limited, based in Sliema, Malta, has been authorised as a crypto-asset service provider under MiCA since 27 January 2025, granted by the Malta Financial Services Authority (MFSA). Through the EU passport the licence covers 29 EEA countries, including Germany, France and Spain (ESMA register, file of 30 October 2026). It covers, among other things, custody, operating a trading platform, exchanging crypto-assets for funds and for other crypto-assets, executing orders, portfolio management and transfers. According to OKX, it also holds MiFID II and payment institution authorisations.

Reserves: OKX regularly publishes a proof of reserves, most recently its 46th report as of 3 October 2026: coverage of 110% for Bitcoin, 100% for Ether, 105% for USDT and 101% for USDC (OKX proof of reserves).

What you can do yourself: the anti-phishing code you set in your account protects you against scams with fake emails, because it appears in every genuine email from OKX. Add two-factor authentication or a passkey, a withdrawal address whitelist and, for larger amounts, your own hardware wallet.

Who is OKX for?

OKX suits investors in the EU who want to trade actively on a licensed exchange: spot, futures, bots and tokenised stocks on one platform, with low order book fees. If you mainly want a savings plan in a lean app, take a look at Bitvavo or Bitpanda; Kraken is another large exchange with a MiCA licence. All licensed providers are listed in our comparison of regulated crypto exchanges.