BSDEX vs Relai Comparison
| 0.35 % | Fees | 1 % |
| € 3.50 | Minimum cost per €1,000 | € 10.00 |
| 10 | Cryptos | 1 |
| SEPA Transfer | Payment Methods | Instant SEPA transfer, credit and debit card (Visa, Mastercard), Apple Pay, Google Pay |
| Custodian of cryptocurrencies (Boerse Stuttgart Digital Custody GmbH) has a BaFin license. | Regulation | MiCA licence (CASP) from the French AMF since 23 Oct 2025 (no. A2025-006), passported across the EU incl. Germany, Austria and Spain. Switzerland: Relai AG is a member of the SRO VQF |
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 A price markup in the spread is not included, because most providers do not publish it.
| € 3.50 | Minimum cost per €1,000 | € 10.00 |
| 0.35 % | Fees | 1 % |
| € 0 | Wallet transfer | € 0 (Bitcoin network fee only, variable) |
| Yes | Cost transparency | Yes |
| € 10 | Minimum Amount | € 50 |
| SEPA Transfer | Payment Methods | Instant SEPA transfer, credit and debit card (Visa, Mastercard), Apple Pay, Google Pay |
On disclosed fees you pay €6.50 less at BSDEX per €1,000 purchase.
Pros & Cons
- All 10 cryptocurrencies trade directly against the euro
- Three separately authorised entities: Baden-Württembergische Wertpapierbörse GmbH for the trading platform, Boerse Stuttgart Digital Custody GmbH for custody, EUWAX AG for exchange, all under BaFin supervision
- Wallet transfer always free
- Minimum charge of just 0.01 € per order
- The advertised 0.20 % applies to maker orders only. Buying with a market order, which is the normal case, costs 0.35 %, that is 75 % more.
- Selection of only 10 cryptocurrencies is limited by comparison
- No savings plan and no staking available
- Only SEPA bank transfer as a payment method
- Self-custody wallet directly in the app – Bitcoin is held in your own wallet
- Savings plan available for weekly or monthly Bitcoin purchases
- Wallet transfer to your own and external wallets (incl. hardware wallets) possible
- VASP license in Switzerland and MiCAR application submitted
- Deposits via SEPA bank transfer and credit card
- Only Bitcoin tradable – altcoin selection occasionally criticized by users
- Minimum amount of 50 € is room for improvement compared with other providers
- Setup of external wallet transfers, according to users, is room for improvement
Score Comparison
User Experiences
AI AnalysisUser reports on BSDEX overall paint a mixed picture: the clear layout, easy usability and low fees are mentioned frequently, while technical hurdles with login and app usage are also noted in the reviews.
According to the analyzed user data, Relai is frequently praised by users for its intuitive and clear app. At the same time, users occasionally report hurdles with support, verification, and individual app launches, so the overall experience varies depending on the usage situation.
This analysis is based on 578 user reviews evaluated by AI from the Apple App Store, Trustpilot, and Google Play Store. The total number of reviews on the respective platforms may be higher — the platform ratings shown (star ratings) refer to all reviews available there. The reviews presented reflect user experiences and do not represent the site operator's own assessment. All information is provided without guarantee. As of: March 2026. This comparison does not constitute investment advice.
Features
| ✓ | Savings plan | ✓ |
| ✓ | Staking | ✓ |
| ✓ | Wallet transfer | ✓ |
| ✓ | Cost transparency | ✓ |
| ✓ | 2FA security | ✓ |
| ✓ | SEPA bank transfer | ✓ |
| ✓ | Credit card | ✓ |
| ✓ | Minimum amount | ✓ |
| ✓ | Mobile app (iOS/Android) | ✓ |
| ✓ | Web platform | ✓ |
| ✓ | Self-custody wallet | ✓ |
| ✓ | Credit card payment | ✓ |
| ✓ | VASP license (Switzerland) | ✓ |
| ✓ | Hardware wallet support | ✓ |
- Börse Stuttgart trading venue – Made in Germany
- Free wallet withdrawals for all supported cryptocurrencies
- BaFin-licensed custodian for crypto holdings
- Transparent fee structure starting at 0.35 %
- Bitcoin-only approach with self-custody directly in the app
- Savings plan with automatic transfer to your own wallet or hardware wallet
- Swiss company with VASP license and MiCAR application
- Relai Private from 100.000 CHF/EUR and Relai Business for companies
The five areas head to head
AI AnalysisFees & Costs
Many users respond positively to the fees and costs. Low fees are highlighted several times in the reviews. Overall, the cost structure is perceived positively from the user perspective.
When it comes to fees and costs, the user data paints a mixed picture. Some users describe Relai as cost-effective, while others rate the fees as high. Overall, opinions on the costs differ clearly.
Usability & User Experience
Users often describe BSDEX as clear and easy to understand, and the intuitive app is also mentioned positively in reviews. At the same time, users report technical hurdles when using the platform, for example when logins are not possible, users have to log in again repeatedly, or the app occasionally freezes.
Users particularly appreciate Relai’s intuitive app, which in many reviews is described as clear and easy to use. According to reviews, getting started also works without much prior knowledge, which stands out positively, especially in everyday use. Occasionally, however, users report that the app does not open directly.
Features & Offering
Regarding features and the offering, the user data shows a rather reserved picture. Users mainly want more coins and more altcoins; a savings plan, a profit-and-loss display and a dark mode are also mentioned occasionally. According to reviews, a chart display is also sometimes requested.
In the analyzed user reviews, some users would like dark mode, automatic orders, tax documents, or a settlement account. In addition, precautionary transfers, coins on the homepage, and more coins are mentioned. Overall, the feedback on features mainly relates to such additional requests.
Stability & Security
Regarding stability and reliability, users report in part positively about dependable everyday use. At the same time, reviews mention update problems, app startup difficulties, FaceID errors and repeated logouts. The fact that withdrawals are not possible is also occasionally mentioned in the user data.
Regarding stability and reliability, individual reviews report that the app does not start, cannot be opened, or crashes. Overall, this area is occasionally criticized by users.
Customer Support
The support is described by users in several reviews as fast, helpful and competent. Users particularly praise the prompt assistance in direct contact. In individual cases, users would like even more support for specific issues.
According to reviews, the sentiment around support is rather critical. While competent service is mentioned occasionally, users also criticize in some cases that support is not reachable or that responses take a long time. Overall, users report mixed experiences with support.
Details
| Baden-Württembergische Wertpapierbörse GmbH | Company | Relai AG (CH) / Relai EU SASU (EU) |
| — | Headquarters | & |
| 2019 | Founded | 2020 |
| Custodian of cryptocurrencies (Boerse Stuttgart Digital Custody GmbH) has a BaFin license. | Regulation | MiCA licence (CASP) from the French AMF since 23 Oct 2025 (no. A2025-006), passported across the EU incl. Germany, Austria and Spain. Switzerland: Relai AG is a member of the SRO VQF |
| € 10 | Minimum Amount | € 50 |
| VideoIdent | KYC | ID card or passport (with MRZ), NFC chip scan, selfie |
Verdict
Both providers are practically level in our overall rating (4.1 to 4.2).
On disclosed fees you pay €6.50 less at BSDEX per €1,000 purchase.
BSDEX is valued as the official crypto trading venue of Börse Stuttgart and is considered one of the most trustworthy platforms in the German market. With custody licensed by BaFin through Boerse Stuttgart Digital Custody GmbH, trading fees of 0.35 % and free wallet withdrawals, the platform is viewed positively by security-conscious investors.
The selection of only 10 cryptocurrencies is clearly room for improvement compared with other exchanges. The absence of a savings plan, staking and alternative payment methods beyond SEPA is also occasionally criticized. The 2FA protection via SMS only instead of TOTP is likewise seen as needing improvement.
BSDEX is considered particularly suitable for investors who value a German, regulated infrastructure connected to Börse Stuttgart and want to focus on the main cryptocurrencies such as Bitcoin and Ethereum.
Relai has established itself in the DACH region as one of the best-known Bitcoin-only apps and is especially appreciated by the Bitcoin community. The Swiss company follows a consistent self-custody approach: Bitcoin is held directly in the in-app wallet, and transfers to external wallets — including hardware wallets — are possible. With a VASP license in Switzerland and an ongoing MiCAR license application, Relai is considered to be on solid regulatory footing.
The savings plan functionality is particularly valued, enabling automatic Bitcoin purchases with direct transfer to your own wallet or a hardware wallet. For investors who see Bitcoin as a long-term store of value and place importance on self-custody, Relai is regarded as one of the most accessible solutions. Fees of 0.9 % are in the mid-range of the brokers compared.
Since only Bitcoin can be traded, Relai is not suitable for investors interested in altcoins — something occasionally criticized by some users. The minimum amount of 50 € and the setup of external wallet transfers are also seen as room for improvement. Relai is therefore especially suited to Bitcoin-focused investors who want to combine self-custody and automated saving with Swiss regulation.