A cryptocurrency platform deserves more scrutiny than its design or advertised trading fee. Before depositing money, establish whom you are contracting with, what you can do with the assets and how you would leave.
The 2024 list previously published here described Coinbase, Binance and Kraken using unsupported safety claims. This revision replaces that ranking with a comparison method. It does not certify or reject any particular brand.
Start with the entity and service
Find the legal entity in the terms applicable to Spanish residents. Then consult ESMA’s MiCA register and the relevant national authority’s register. Compare the legal name, website and service; one brand may operate through several companies.
Article 59 of MiCA distinguishes authorised providers from certain financial institutions allowed to provide services under Article 60. Finding an unspecified registration number in a website footer is not enough.
Make the cost of leaving visible
Compare the same amount and operations for each provider. Include funding, buying, selling and withdrawing euros, plus an external wallet transfer if required. Record explicit charges and the difference between buying and selling prices.
A hypothetical 100-euro purchase may carry a small trading fee, but that does not show what would remain after selling and withdrawing. Use current fee documents to complete the whole sequence. There is no need to make real transactions just to produce a comparison.
Custody and withdrawal questions
- Who holds the assets, and what does the custody contract say?
- Can you withdraw the asset, or only sell it within the app?
- Which networks, minimums, limits or checks affect withdrawals?
- Where is the complaints procedure explained?
- How would you download a complete transaction history?
Record any answer that depends on the asset or country. A feature available for one token should not be assumed to work for every token.
What authorisation establishes
The European authorities’ consumer factsheet explains that protections depend on the asset, service and provider. Authorisation does not guarantee returns or turn crypto-assets into bank deposits.
Separate the products too. Spot purchases, lending, yield products and derivatives are not interchangeable. Do not add a complex product to your comparison just because it is prominently displayed or carries a welcome incentive.
A decision you can explain
Keep the date and links for the terms you consulted. If costs or withdrawal conditions are unclear, leave the comparison unfinished. Star ratings cannot resolve an unknown contractual condition.
Which platform is best?
There is no universal answer. It depends on the service, legal entity, current terms and individual requirements. This guide does not recommend buying cryptocurrency.
Our DeFi guide explains the difference between an exchange application and a protocol.
Sources checked on 22 September 2026.
