21bitcoin vs BISON 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.

Editorial assessment, November 2026: We have downgraded BISON to 1.9 out of 5 and do not recommend it. The deciding factor is cost. According to BISON's fee page (accessed 8 November 2026), the proportional spread on Bitcoin and Ethereum averages 1.25 percent per purchase or sale, and 1.75 percent on all other cryptocurrencies. Buying Bitcoin and selling it later therefore costs around 2.5 percent, and around 3.5 percent for other coins. Deposits by credit card, Apple Pay or Google Pay cost an extra 2.49 percent, and BISON keeps 27 percent of staking rewards on Ethereum and Solana. MiCA-licensed exchanges in our exchange comparison charge from 0.2 percent for the same purchase. The authorisation of EUWAX AG and Boerse Stuttgart Digital Custody GmbH in the ESMA register does not change this calculation.

BISON is the crypto app of Börse Stuttgart and is perceived in the DACH region as a provider with a traditional capital markets background. The provider is EUWAX AG, a Börse Stuttgart company supervised by BaFin that has notified BaFin of its crypto services under MiCA. Crypto custody is handled by Boerse Stuttgart Digital Custody GmbH, which has held a MiCA authorisation from BaFin since January 2025. Euro balances are held at Solaris SE and Deutsche Bank and are covered by statutory deposit protection up to EUR 100,000 per investor and bank. According to BISON, 69 cryptocurrencies are tradable, plus stocks and ETFs, and the app has more than 1.06 million users.

As one of the few offerings among German brokers, BISON allows free wallet transfers to your own wallets. Staking, savings plans, and an integrated tax report are also available. According to BISON, staking of Ethereum and Solana is currently not regulated under MiCA. Deposits are possible via SEPA, instant bank transfer, and credit card.

Costs sit in the spread, which according to BISON averages 1.25 % on Bitcoin and Ethereum and 1.75 % on all other cryptocurrencies, the upper range among the brokers compared. The exclusively SMS-based 2FA and the processing time for wallet transfers of up to 24 hours are also seen as room for improvement. Overall, BISON is aimed at investors who prefer an established German provider and are willing to accept trade-offs in fees and coin selection.