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What Is Piggy? The Bitcoin Piggy Bank, Explained
Piggy is a self-custody Bitcoin piggy bank for iOS and Android. Passkey-first, no seed phrase required by default, with a name, a face, and a voice. Empty it and it dies.
2026-04-08
How Piggy Works: From Download to First Sat
Piggy is a self-custody Bitcoin piggy bank with a name, a face, and a voice. This is exactly what happens from the moment you install the app to the moment you feed it its first sat.
2026-04-07
What Is Stacking Sats?
Stacking sats means saving small amounts of Bitcoin over time. A sat is one hundred-millionth of a Bitcoin. Here's what the term means, how to start saving Bitcoin, and where to keep your sats.
2026-04-10
What Is a Self-Custody Bitcoin Wallet?
Self-custody means your Bitcoin keys live on your device, not on an exchange. Here's how it works, what you're responsible for, and how to start saving Bitcoin in a wallet you actually control.
2026-04-10
Passkey Bitcoin Wallets: Self-Custody Without a Seed Phrase
A passkey Bitcoin wallet derives your Bitcoin private keys on your device from a passkey. No mandatory 12-word seed phrase. Still fully self-custody.
2026-04-06
How to Get a Bitcoin Lightning Address
A Bitcoin Lightning address looks like an email address and lets anyone send you Bitcoin from any Lightning wallet. Here's what a Lightning address is, how it differs from a regular Bitcoin address, and how to get one in under a minute.
2026-04-05
Why Save in Bitcoin?
Bitcoin is treated as a trading asset. It also works as a savings tool: divisible to 100 million sats, movable for near-zero fees on Lightning, and held in a wallet only you control.
2026-04-11
What Is a Commitment Device?
A commitment device makes it costly to break a promise to yourself. Piggy is one: a Bitcoin savings wallet where emptying it kills the creature permanently. Here's why that works.
2026-04-10
What Does Pay Yourself First Mean?
Pay yourself first means saving before you spend. Move sats into your wallet the moment you get paid, before anything else. Here's how Piggy makes that work with Bitcoin.
2026-04-10