Steem wallet refresh rate

Hey guys,

I'm sure most of you are aware that Steem's value surged today, reaching to a value of around a dollar/steam. I noted that steem wallets don't update regularly to calculate the Estimated Account Value with respect to the up-to-date value of steem . Anyhow, whenever it does update, we'll hopefully all be happy to see our account's value to have approximately doubled :). This made wonder where I could get information about the platform in general: it's functionality and history? I'm sure there are blogs out regarding this.