Reckoner: Bitcoin Portfolio

Reckoner tracks Bitcoin addresses you scan or paste in, and values them honestly. Most trackers stop at the spot price. Reckoner goes further: apply your own discount, liquidity haircut, and realization percentages, and see the adjusted value alongside the market value. The assumptions are yours. Reckoner just does the arithmetic and shows its working. READ-ONLY BY CONSTRUCTION No private keys. No seed phrases. No signing, sending, or receiving. Reckoner can read the chain; it cannot move anything on it. There is no account and no login. WHAT IT DOES • Watch any number of public Bitcoin addresses • Add an address by scanning its QR code • Legacy, SegWit, and Taproot addresses, validated before they are saved • Balance and fiat value per address, plus combined totals • EUR, USD, or GBP • Manual refresh, optional auto-refresh, and a clear last-updated time • Filter and sort your addresses…