Guides

Bitcoin guides, in plain English.

Understand the mempool, fees, wallets and more, then watch it all live on your iPhone.

Is there an official mempool app for iPhone?

mempool.space has an Android app but no iOS app, here's the native alternative.

What the mempool is, how congestion works, and how to use it.

How fee recommendations work and how to pick the cheapest moment to send.

Watch-only wallets and extended public keys, explained.

Sats per dollar, and why bitcoiners think in satoshis.

An honest look at the options for following the mempool on iOS.

Live mempool, fees, a block explorer and watch-only wallets, free, open source, no subscription.