Our take
Guarda Wallet
Guarda Wallet delivers a versatile non-custodial software environment designed for users managing crypto assets across multiple blockchains. Established in 2017 with roots in the European Union, the platform allows individuals to retain direct possession of private keys while interacting with tens of thousands of tokens and proof-of-stake networks. Its primary appeal lies in cross-platform synchronization across desktop programs, mobile apps, web interfaces, and browser extensions without mandating account registration. However, integrated swaps and fiat purchases rely on external third-party providers that typically embed wider spreads and dynamic markups. Parts of the codebase also remain proprietary rather than fully open source. For individuals seeking broad token coverage and flexible multi-device access, Guarda offers practical day-to-day utility alongside disciplined personal backup management.
Tangem
Tangem offers a distinctive approach to cold storage by packaging a secure element into a durable bank card form factor. Founded in Switzerland in 2017, the company designed its hardware without internal batteries, charging ports, or connecting cables. Users interact with their digital assets by tapping the smart card against an NFC-enabled mobile phone running the companion application. The architecture stands out for offering a seedless recovery model alongside traditional BIP39 mnemonic passphrases. When configured without a seed phrase, the private key is generated directly inside the secure element and cloned securely across companion backup cards. This setup removes the risk of exposing paper backups to theft, though transaction validation relies on the paired smartphone screen. Tangem delivers practical and highly portable self custody for everyday cryptocurrency holders.