The best alternatives to BTC-Alpha are Robinhood, imToken, and PowerTrade. If these 3 options don't work for you, we've listed a few more alternatives below.
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Postman Recorder by DevTools— Export Postman APIs from browser
World-renowned mobile light wallet for digital asset management. A user friendly interface that enables interaction with the blockchain technology for millions of users worldwide. Notable features include multi-chain support like BTC, ETH, EOS