BSDEX vs Relai Comparison
In our overall rating Relai leads with 4.2 out of 5 points, ahead of BSDEX with 2.9. On disclosed fees BSDEX is cheaper: 0.35 % instead of 1 % trading fee, which means € 3.50 instead of € 10.00 per €1,000 purchase. If you care most about usability, features, stability, and support, Relai has the better sub-scores.
| 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 A price markup in the spread is not included, because most providers do not publish it.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
- Trading and custody under BaFin supervision, custody with Boerse Stuttgart Digital Custody GmbH
- Wallet transfer always free
- 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.
- Only 10 cryptocurrencies, far fewer than at large exchanges
- No savings plan and no staking available
- Only SEPA bank transfer as a payment method
- Two-factor authentication via SMS only, no authenticator app
- Weak app ratings: 1.5 stars on Google Play
- 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
| not available | Savings plan | available |
| not available | Staking | not available |
| available | Wallet transfer | available |
| available | Cost transparency | not specified |
| available | 2FA security | not specified |
| available | SEPA bank transfer | not specified |
| not available | Credit card | available |
| not available | Minimum amount | not specified |
| available | Mobile app (iOS/Android) | available |
| available | Web platform | not available |
| not specified | Self-custody wallet | available |
| not specified | VASP license (Switzerland) | available |
| not specified | Hardware wallet support | available |
- Regulated trading venue of Börse Stuttgart
- Free wallet withdrawals
- Only 10 coins, no savings plan, no staking
- Market orders 0.35 %, maker 0.20 %
- 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
In our overall rating Relai leads with 4.2 against 2.9 for BSDEX.
On disclosed fees you pay €6.50 less at BSDEX per €1,000 purchase.
For most investors Relai is therefore the better choice.
BSDEX is a regulated crypto trading venue of Börse Stuttgart. Custody is handled by Boerse Stuttgart Digital Custody GmbH under BaFin supervision, and withdrawals to your own wallet are free. That is solid, but compared with other platforms it is not enough for a good rating.
The offering is narrow: only 10 cryptocurrencies, no savings plan, no staking and SEPA bank transfer as the only payment method. Buying with a market order costs 0.35 %; the advertised 0.20 % applies to maker orders only. Two-factor authentication works via SMS only, authenticator apps are not supported. Users are lukewarm too: the app scores 1.5 stars on Google Play and 3.2 on Trustpilot, with reports of login problems, repeated logouts and issues after updates.
Our verdict: BSDEX suits investors who only want to hold Bitcoin and a few large coins through German exchange infrastructure. If you are looking for a regulated platform with a wider selection, savings plans or staking, Bitpanda or Coinbase are the better choice.
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.