Our take
coinmarketcap
CoinMarketCap functions as an essential market reference and portfolio monitor for crypto market participants. It aggregates spot prices, exchange volumes, liquidity scores, and circulating supplies across practically every active blockchain asset. The portfolio tracking tool allows individuals to log purchases manually or connect supported public wallet addresses to observe net worth movements and profit calculations over custom time horizons.
Because CoinMarketCap does not hold custody of user funds or operate a proprietary matching engine, users face zero asset custody risk directly on the site. However, the reliance on third-party pricing feeds means display values can diverge from realized venue pricing. For everyday tracking, watchlist organization, and market research, the platform delivers strong utility without recurring subscription overhead.
Koinly
Koinly delivers a comprehensive tax calculation and portfolio management solution designed to handle messy crypto transaction histories. By connecting read-only API keys, public wallet addresses, and CSV records, the platform consolidates activity across centralized trading venues, self-custody addresses, and smart contract protocols. The core strength rests in its extensive regional compliance settings, which support country-specific accounting methods such as FIFO, LIFO, and share pooling rules in the United Kingdom or average cost basis in Canada.
While the service offers free transaction syncing and balance monitoring, downloading official tax filing forms requires an annual tax year license. Pricing scales by total transaction count, which can become costly for automated bot traders or active yield farmers. For individuals seeking clear tax liability calculations and downloadable reporting forms, Koinly provides an established and reliable operational setup.