21bitcoin vs BISON Comparison
In our overall rating 21bitcoin leads with 4.0 out of 5 points, ahead of BISON with 2.5. On disclosed fees the two are level, € 12.90 at 21bitcoin and € 12.50 at BISON per €1,000 purchase. If you care most about usability, features, stability, and support, 21bitcoin has the better sub-scores. BISON lists more cryptocurrencies (71) than 21bitcoin (1).
| 1.29 to 1.49 % | Fees | 1.25 % |
| € 12.90 | Minimum cost per €1,000 | € 12.50 |
| 1 | Cryptos | 71 |
| SEPA Instant Transfer, SEPA Transfer | Payment Methods | SEPA transfer, SEPA Instant transfer, credit card (Visa, Mastercard), Apple Pay, Google Pay (card and wallets: 2.49%) |
| Licensed as a virtual currency service provider according to FM-GwG §32a Para. 2 by the Financial Market Authority of Austria | Regulation | MiCAR licence from BaFin: EUWAX AG for crypto trading (since 1 April 2025), Boerse Stuttgart Digital Custody GmbH for custody (since 17 January 2025) |
Cost comparison
The basis is a Bitcoin purchase worth €1,000, calculated from the disclosed trading fee. A price markup in the spread is not included, because most providers do not publish it.
| € 12.90 | Minimum cost per €1,000 | € 12.50 |
| 1.29 to 1.49 % | Fees | 1.25 % |
| € 0.75 | Wallet transfer | € 0 |
| Yes | Cost transparency | Yes |
| € 15 | Minimum Amount | € 0.01 |
| SEPA Instant Transfer, SEPA Transfer | Payment Methods | SEPA transfer, SEPA Instant transfer, credit card (Visa, Mastercard), Apple Pay, Google Pay (card and wallets: 2.49%) |
On disclosed fees there is nothing between the two providers.
Not enough reviews available.
BISON charges no order fee for crypto trading; the cost sits in the spread between the buy and sell price. The spread varies with market conditions and trade size, while the account, custody, deposits and withdrawals are free.
| Transaction | Cost at BISON |
|---|---|
| Spread on Bitcoin and Ethereum | 1.25% on average per buy or sell |
| Spread on all other cryptocurrencies | 1.75% on average per buy or sell |
| Account opening, account management and custody | free |
| EUR deposit by SEPA or instant transfer | free; your own bank may charge for SEPA Instant |
| Instant deposit by credit card, Apple Pay or Google Pay | 2.49% of the amount |
| EUR withdrawal, crypto deposits and withdrawals | free |
| Staking Ethereum and Solana | BISON keeps 27% of the staking rewards |
| Stocks and ETFs | EUR 1.99 per buy or sell |
How to save: Deposit by SEPA or instant transfer instead of card to save 2.49%. Buying and later selling EUR 1,000 of Bitcoin costs about EUR 25 through the spread, about EUR 35 for altcoins. If you trade often, compare that with exchanges that charge fixed maker and taker fees in our crypto exchange comparison.
As of 22 October 2026 according to BISON, fees and costs.
Pros & Cons
- Transparent service fee of 1.29% to 1.49% on one-off purchases, 0% in the savings plan from day 8, with no ongoing account charges
- Withdrawals to your own wallet at a flat fee of 0.00001 BTC
- Automatic transfer to your own wallet above defined thresholds
- Savings-plan standing orders are invested in Bitcoin as soon as they arrive
- FMA-licensed as a virtual asset service provider in Austria
- Bitcoin only – the lack of altcoins is criticised by some users
- Two-factor authentication needs work, according to users
- The €15 minimum order is higher than at some competitors
- 70 cryptocurrencies tradable, plus over 2,500 stocks and ETFs
- Crypto custody by the BaFin-regulated Boerse Stuttgart Digital Custody GmbH
- Transfers to your own wallets are free of charge
- Staking and savings plans available
- Tax report offered as an added feature
- Deposits via SEPA, SEPA instant transfer and credit card
- Entry from as little as €1
- The proportional spread averages 1.25 % on Bitcoin and Ethereum and 1.75 % on all other cryptocurrencies
- SMS-based two-factor authentication; stronger methods would be welcome
- Processing times of up to 24 hours for wallet transfers are occasionally criticised
Score Comparison
User Experiences
AI AnalysisUser reviews paint a broadly positive picture of 21bitcoin. What owners value most is the clean, intuitive app and how easy it is to use, while individual voices see room for improvement on fees and on the feature set.
Users generally describe BISON in the evaluated user data as easy to understand and clear. In particular, the intuitive and easy-to-use app is frequently praised in reviews, while fees, support, and the selection of coins are seen more critically by users.
This analysis is based on 608 user reviews analysed by AI from the Apple App Store, Trustpilot and the Google Play Store. The total number of reviews on each platform may be higher — the platform ratings (star ratings) shown refer to all reviews available there. The ratings displayed reflect users' experiences and do not represent the site operator's own assessment. All information without guarantee. As of: March 2026. This comparison does not constitute investment advice.
Features
| available | Savings plan | available |
| not available | Staking | available |
| available | Wallet transfer | not available |
| available | Automatic wallet transfer | not specified |
| not available | Credit card payment | available |
| available | FMA regulation (Austria) | not specified |
| not available | Web platform | available |
| available | Mobile app (iOS/Android) | available |
| available | SEPA instant transfer | available |
| not specified | BaFin-regulated custodian | available |
| not specified | Tax report | available |
- Automatic transfer to your own wallet above set amounts
- FMA-regulated and based in Austria
- Service fee of 1.29% to 1.49% on one-off purchases, 0% in the savings plan from day 8
- Deposits via SEPA and SEPA instant transfer
- Powered by Börse Stuttgart with many years of capital markets experience
- Free wallet transfer to your own wallets
- Tax report for crypto tax filing
- BaFin-regulated crypto custody
The five areas head to head
AI AnalysisFees & Costs
On fees and costs the picture is mixed. Users describe the pricing as fair, though some point to costs they consider high. A few also note that the tax side has to be organised by the user, and that the resulting tax burden feels heavy.
When it comes to fees and costs, users report criticism comparatively often. According to reviews, the fees and spread are repeatedly described as high. Especially among price-conscious users, this area is therefore perceived rather critically in the user data.
Usability & User Experience
Reviewers frequently describe the app as intuitive, uncluttered and self-explanatory, and ease of use is the single most praised aspect. A few users report problems getting into their account, but overall usability comes across positively.
Users mainly report a clear design and an intuitive app with BISON. According to reviews, the platform is often described as easy to use, user-friendly, and self-explanatory. Some users mention annoying notifications and report that verification does not always go smoothly.
Features & Offering
The savings plan is the feature users appreciate most. At the same time they ask for more in several places: additional coins, more savings-plan options, price notifications, a wallet inside the account and limit orders. Weekly DCA is mentioned occasionally as well.
According to reviews, users are rather reserved about BISON’s offering, mainly because of the limited coin selection. Many users would like to see more coins or cryptocurrencies; additionally, an API for Blockpit, staking, savings plans, as well as an iPad or Mac version are mentioned occasionally.
Stability & Security
On stability and reliability, users mostly report trouble-free day-to-day use and describe the app as dependable. Access issues come up occasionally and are the one area some users would like to see improved.
In terms of stability and reliability, many users are generally positive about BISON. According to reviews, the app is repeatedly described as reliable. However, some users report app crashes, so from the perspective of individual reviews the technical reliability still has room for improvement.
Customer Support
Support is frequently described as fast, with users reporting prompt replies. Individual contact channels are occasionally seen as having room for improvement.
When it comes to support, users report mixed experiences in the reviews, but overall rather critical ones. There is repeated mention of no support or long response times, which is why some users describe customer service as room for improvement. Support is also occasionally mentioned critically in connection with delays around withdrawals.
Details
| FIOR Digital GmbH | Company | EUWAX AG |
| 2021 | Founded | 2019 |
| Licensed as a virtual currency service provider according to FM-GwG §32a Para. 2 by the Financial Market Authority of Austria | Regulation | MiCAR licence from BaFin: EUWAX AG for crypto trading (since 1 April 2025), Boerse Stuttgart Digital Custody GmbH for custody (since 17 January 2025) |
| € 15 | Minimum Amount | € 0.01 |
| Photo ID | KYC | eID, VideoIdent |
Verdict
In our overall rating 21bitcoin leads with 4.0 against 2.5 for BISON.
On disclosed fees there is nothing between the two providers.
For most investors 21bitcoin is therefore the better choice.
21bitcoin has established itself as an Austrian Bitcoin app across German-speaking Europe, valued above all for a transparent fee structure. On one-off purchases the provider charges a service fee of 1.29% to 1.49%, and in the savings plan no service fee applies from day 8. The provider is licensed by Austria's Financial Market Authority (FMA) as a virtual asset service provider and deals exclusively in Bitcoin. Users single out the automatic transfer to a personal wallet above defined thresholds as a genuinely useful security feature.
The savings-plan approach is refreshingly uncomplicated: standing orders are invested in Bitcoin as soon as the money arrives, and the flat wallet-transfer fee of 0.00001 BTC is widely seen as fair. For investors in Austria, Germany and Switzerland looking for an FMA-regulated alternative to the Swiss Bitcoin apps, 21bitcoin reads as a solid option. Total costs of €7.90 on a €1,000 trade sit in the middle of the field.
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. The absence of two-factor authentication in the app and the €15 minimum order also leave room for improvement. That makes 21bitcoin a good fit for Bitcoin-focused investors in German-speaking Europe who care about cost transparency, automatic wallet transfers and Austrian regulation.
BISON is the crypto app of Börse Stuttgart and is perceived in the DACH region as a provider with a traditional capital markets background. Crypto custody is handled by Boerse Stuttgart Digital Custody GmbH, which is regulated by BaFin. According to BISON, 70 cryptocurrencies are tradable, plus stocks and ETFs.
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. 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.