Flatex vs Relai Comparison

Flatex
Flatex
3.1of 5
Go to Flatex
vs
Relai
Relai
Winner
4.2of 5
Go to Relai
0.7 %Fees1 %
€ 7.00Minimum cost per €1,000€ 10.00
20Cryptos1
SEPA TransferPayment MethodsInstant SEPA transfer, credit and debit card (Visa, Mastercard), Apple Pay, Google Pay
Crypto custodian Tangany GmbH has a BaFin license.RegulationMiCA 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 A price markup in the spread is not included, because most providers do not publish it.

FlatexRelai
€ 7.00Minimum cost per €1,000€ 10.00
0.7 %Fees1 %
Wallet transfer€ 0 (Bitcoin network fee only, variable)
LimitedCost transparencyYes
€ 1Minimum Amount€ 50
SEPA TransferPayment MethodsInstant SEPA transfer, credit and debit card (Visa, Mastercard), Apple Pay, Google Pay

On disclosed fees you pay €3.00 less at Flatex per €1,000 purchase.

Pros & Cons

Flatex
Flatex
Pros
  • BaFin-regulated German bank with a full licence
  • Direct trading in 25 cryptoassets for clients in Germany, from €1 per order
  • Total costs of 0.6% including the spread for liquid assets such as Bitcoin
  • Custody with Tangany, a BaFin-supervised crypto custodian
  • Crypto ETNs in the same portfolio, with a German tax certificate
  • Established online broker since 2006
Cons
  • Direct crypto trading only for private clients with a registered address in Germany and an individual account
  • Small selection of 25 cryptoassets, no staking, no crypto savings plans
  • No transfers to or from a personal wallet
  • No tax withheld on directly held crypto, gains must be declared yourself
  • Crypto ETNs: order fees plus ongoing product costs (TER)
Flatex Reviews
Relai
Relai
Pros
  • 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
Cons
  • 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
Relai Reviews

Score Comparison

4.0Usability4.3
3.6Features4.3
3.7Fees4.2
4.4Stability3.8
4.0Support4.1

User Experiences

AI Analysis
App Store
4.6
Google Play
4.2
Trustpilot
4.0
Flatex
Flatex
Existing brokerage clients value the simplicity; anyone looking for lots of altcoins will find the choice of 25 cryptoassets narrow.
Relai
Relai

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.

Investing carries a high level of risk, up to and including total loss of capital. This is not investment advice. As of September 2026, without guarantee.

Features

FlatexRelai
Savings plan
Staking
Wallet transfer
Self-custody wallet
Credit card payment
VASP license (Switzerland)
Web platform
Mobile app (iOS/Android)
Hardware wallet support
Flatex
FlatexHighlights
  • 25 cryptoassets tradable directly for 0.6% to 0.7% in total costs including the spread
  • Crypto trading in the flatex account alongside shares and ETFs
  • Crypto ETNs also available as a savings plan from €25
Relai
RelaiHighlights
  • 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 Analysis

Fees & Costs

Flatex
Flatex

Direct crypto trading: total costs of 0.6% including the spread for liquid cryptoassets such as Bitcoin and 0.7% for less liquid ones, each for customary order sizes; orders start at €1. Crypto ETNs: order fee of €5.90 per exchange order plus exchange fees, and ongoing product costs (TER) that vary by issuer. As of September 2026.

Relai
Relai

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

Flatex
Flatex

Not enough reviews available.

Relai
Relai

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

Flatex
Flatex

Not enough reviews available.

Relai
Relai

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

Flatex
Flatex

Not enough reviews available.

Relai
Relai

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

Flatex
Flatex

Not enough reviews available.

Relai
Relai

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

FlatexRelai
flatexDEGIRO Bank AGCompanyRelai AG (CH) / Relai EU SASU (EU)
Headquarters&
2005Founded2020
Crypto custodian Tangany GmbH has a BaFin license.RegulationMiCA 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
€ 1Minimum Amount€ 50
eID, Video-ID, PostIdentKYCID card or passport (with MRZ), NFC chip scan, selfie

Verdict

In our overall rating Relai leads with 4.2 against 3.1 for Flatex.

On disclosed fees you pay €3.00 less at Flatex per €1,000 purchase.

For most investors Relai is therefore the better choice.

FlatexOur Opinion

For investors in Germany who want to hold crypto with the same broker as their shares and ETFs, flatex is a solid choice: according to flatex, liquid assets such as Bitcoin cost 0.6% in total including the spread, less liquid ones 0.7%, each for customary order sizes. The selection of 25 cryptoassets is small, though, there is no staking and no crypto savings plan, and coins can neither be transferred to your own wallet nor deposited from one. flatex does not withhold tax on crypto gains, because directly held crypto is not subject to Germany's flat-rate withholding tax. Clients without a registered address in Germany cannot use direct crypto trading at all and are left with crypto ETNs. If you want a wide choice of coins or your own wallet, a crypto exchange is the better fit.

RelaiOur Opinion

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.