Compare Fyn vs. Summ

Easy to implement and global crypto tax APIs for your business or Web3 project. We have the right solution for you, whether you are a crypto trader or investor. Fyn (formerly BearTax), has been helping traders and investors calculate and report on Crypto taxes since 2018. With our APIs, we are now able to bring that ease in automation, accounting and reporting to Web3 businesses. Enjoy a mobile-friendly UX, support of multiple commercial models, global reach with our APIs. Fyn can help you scale and grow your Web3 investment and Web3 business.

Summ (formerly Crypto Tax Calculator) is an advanced crypto tax platform that simplifies tracking and reporting across all your exchanges, wallets, NFTs, and DeFi activity. Backed by Airtree, Coinbase Ventures & 20VC. With support for over 3,500 integrations, Summ imports your full transaction history and automatically generates audit-ready reports built to align with IRS tax guidelines. Users can review trades, identify tax-saving opportunities, and download accountant-approved forms including 8949, 1040, capital gains summaries, and more. Summ's portfolio tracker provides real-time PnL, tax liability insights, and accurate pricing for over 300,000 cryptocurrencies—including micro-cap assets. With a 4.6/5 Trustpilot rating and seamless TurboTax integration, Summ makes crypto tax filing stress-free for both casual traders and professionals. Designed for speed, accuracy, and compliance, Summ gives users total confidence at tax time.