Swapping ETH for BTC sounds simple — until fees start stacking up. Gas costs on Ethereum and Bitcoin, bridge risks, exchange spreads, and hidden withdrawal fees can quietly turn a basic trade into an expensive move. If you’re searching for the cheapest way to exchange ETH to BTC in 2026, the short answer is clear: use a smart swap aggregator. Instead of manually bridging assets or relying on a single exchange, AI-powered aggregators like Flashift…