Electrum Bitcoin Wallet, is an exclusive digital wallet for Bitcoin launched in 2011. It is a safe and reliable wallet since it offers different characteristics that lead you to that. The keys are encrypted, implement a secret phrase to recover the wallet, Instant on, No Lock-in, Among others so that users do not think about using it.
It is a decentralized wallet, it allows to verify all the transactions in the history using SPV. Offers cold storage.
It is available in multiple countries around the world and its technical support is through email and by GitHub 24 hours a day.