Our take
bison
BISON provides a structured, approachable pathway into digital asset markets for European retail investors. Powered by Boerse Stuttgart Digital Ventures and its affiliated entities, BISON focuses on compliance, reliability, and ease of use. Instead of overwhelming users with derivatives, complex charting interfaces, or thousands of speculative altcoins, the platform delivers a streamlined experience oriented around buying, selling, and holding major digital currencies.
The service eliminates explicit transaction commissions by embedding trading costs entirely within an average spread of approximately 1.25 percent. Custody is handled directly by Boerse Stuttgart Digital Custody GmbH, a German entity holding a BaFin crypto custody licence. While experienced high-frequency traders may find the curated asset library and spread pricing restrictive compared to deep multi-tier order books, BISON represents a dependable, transparent gateway for long-term allocators and newcomers prioritizing regulatory safety.
relai
Relai positions itself as an accessible gateway for European residents seeking straightforward Bitcoin exposure with genuine self-custody from day one. The mobile platform bypasses traditional custodial holding balances, settling all completed purchases directly to private seed phrases generated on user devices. This architectural choice removes central counterparty custody risk while maintaining approachable workflows for scheduled dollar-cost averaging orders.
The service structure makes deliberate compromises. The platform focuses exclusively on Bitcoin, ignoring broader multi-asset ecosystems and smart contract protocols. Base transaction costs remain higher than wholesale order-book exchanges, though fee reductions apply to larger volumes and recurring plans. For cost-conscious savers who prioritize direct key ownership over complex trading tools, Relai provides a clear and focused entry path.