Jaxx was first developed in 2014 and serves not only as a Bitcoin wallet but an app which can store multiple cryptocurrencies such as Litecoin, Dash, Ethereum and Bitcoin Cash. Ripple is not currently supported but the Jaxx team have hinted they may support this feature in the future. (For a full list of supported currencies see here).
When first run, Jaxx displays a 12 word ‘master seed’ similar to Electrum which you can write down and use to restore your wallets if you lose access to the original program.
Download : https://jaxx.io/
Electrum has been around since 2011 and works with Windows, Mac and Linux. It’s one of the most popular ‘thin’ wallet clients, in that instead of downloading the entire Bitcoin blockchain, it connects securely to other servers to verify your BTC balance and process payments. This means you can set it up in minutes and it takes up very little space on your hard drive.
Electrum uses a ‘hierarchical deterministic wallet’, in that when you first launch the program it generates a random ‘seed’ of 12 dictionary words, from which it derives the keys necessary to spend and receive BTC. Electrum displays the seed as you create your wallet and requires you to write it down. This means that if you lose access to this version of Electrum, you can easily reinstall it on another machine and use the seed to restore your BTC.
Bitcoin Core is the original BTC client and is available for Windows, Mac and Linux. Core is a ‘full node’ Bitcoin client, meaning that on first-run it will download the current version of the blockchain (currently around 160GB) by connecting to other nodes. It will then continue to download and process data about Bitcoin transactions.
One advantage of this is that it’s much more difficult to link a specific BTC payment address to your identity as Core downloads data about all Bitcoin transactions everywhere. This also protects you against certain types of fraud such as someone trying to spend the same BTC twice, or fooling you into believing you’ve received funds you haven’t actually got.