Altmarkets Verified Customer Reviews (2026)

CEX.IO, a licensed and versatile cryptocurrency exchange established in 2013, has set up offices across several countries, including the UK, US, Ukraine, Cyprus, and Gibraltar. With a global user base that surpasses 3 million, the platform guarantees reliable services by implementing cold storage for cryptocurrencies, maintaining strong financial health, employing advanced security protocols, and following KYC/AML regulations. It is noteworthy that CEX.IO was one of the early innovators to streamline fiat-to-crypto transactions, enabling users to make purchases with credit cards and bank transfers seamlessly. Currently, the exchange supports a broad spectrum of cryptocurrencies including Bitcoin, Bitcoin Cash, Ethereum, Ripple, Stellar, Litecoin, and Tron, which can be exchanged for fiat currencies such as USD, EUR, GBP, and RUB. Recognizing the necessity of user-friendly access, CEX.IO offers trading through its website and mobile apps for both iOS and Android, in addition to providing WebSocket and REST API functionalities, accommodating various preferences among users. This dedication to providing flexible trading solutions empowers clients to engage in transactions at their convenience, whether at home or on the go. Ultimately, CEX.IO continues to evolve and adapt its services to meet the dynamic needs of the cryptocurrency market.

BYDFi, which was previously known as BitYard, stands as Singapore's leading exchange for cryptocurrency contracts. Our platform facilitates secure, straightforward, and efficient trading of cryptocurrency assets across more than 150 nations. Emphasizing the motto "Complex Contracts Simple Trade," BYDFi is dedicated to delivering an exceptional trading experience for all users. We provide a diverse selection of trading pairs that encompass Crypto, Forex, and Commodities. Signing up is a breeze, whether through your email or mobile number, and can be done easily on both PC and mobile devices. With a user base exceeding 500,000 from around the globe, we support multiple languages including English, Traditional Chinese, and Russian. Achieving a trade takes just 30 seconds, allowing you to engage in trading anytime and anywhere. BYDFi truly serves as a comprehensive platform for all your digital asset trading needs, making it the go-to choice for traders.

Aboard protocol represents a decentralized derivatives exchange that utilizes an order-book system paired with a comprehensive advisory framework. Our primary objective is to elevate the crypto derivatives landscape while providing assistance to the asset management industry. The Aboard exchange aims to rectify the limitations found in current decentralized derivatives platforms by introducing a broader array of products, enhanced efficiencies, and sophisticated trading tools. Moreover, Aboard’s advisory protocol creates an environment for fund managers to craft trading strategies, allowing investors to transparently and securely choose from these strategies. Leveraging third-party cross-chain and cross-layer solutions enables users to quickly withdraw and transfer tokens across various blockchain networks, such as Ethereum, Arbitrum, and Binance Smart Chain, all while enjoying low transaction costs. Currently, Aboard offers seven trading pairs for perpetual contracts: AAVE-USDC, BTC-USDC, ETH-USDC, LCix-USDC, LINK-USDC, SUSHI-USDC, and UNI-USDC. Users can amplify their investments with leverage up to 25X and benefit from a cross-margin trading system, which aids in optimizing capital utilization. In addition, we are committed to ongoing innovation and expansion of our services to better align with the evolving needs of our trading community, ensuring we remain at the forefront of the market. As we grow, our focus remains on providing unparalleled support and tools to empower both traders and investors alike.