Thief & Blend

An infinity bottle is a whiskey blend that never empties. You pour a little in from bottles you love, pour a glass out now and then, and over months it becomes something only you have: a running average of your own taste. Your house blend.

Thief & Blend keeps the books.

WHAT IT DOES

Every pour in, every pour out, every splash of water is an entry in a ledger. From that ledger the app computes what your bottle actually is right now: the live proof, the exact composition, the blended mash bill, and how much of the very first pour is still in there.

Type a pour and watch the proof move before you commit it. The headroom readout goes further: "you can add 3.4 oz of Booker's before crossing 110." Nobody does that math in their head at nine at night with a bottle in the other hand.

A LEDGER, NOT A NOTEBOOK

Everything is stored as pours rather than totals, which means you can edit any entry ever made and the whole bottle recalculates instantly. Fix entry 12 without deleting 13 through 47. No cascading deletes, no starting over, no slowdown at two hundred entries.

THE SHIP OF THESEUS

Replace every plank of a ship and is it the same ship? Your bottle lives that question. The meter tracks what percentage of each original pour physically remains, correct even across splits and merges. When the last drop of the first whiskey finally leaves, the app marks the day.

FEATURES

Multiple bottles, each with its own ledger and lineage
Live proof math on every pour, before you commit
Headroom: how much you can add before crossing a target proof
Sandbox mode: stack hypothetical pours, commit them or throw them away
Ship of Theseus meter, correct across splits and merges
Split a bottle in two, with the full blend and lineage inherited
Gift a pour: send a friend four ounces and the data goes with it, so their bottle starts with your whole history attached
Adopt a bottle you already have, mid-life, without pretending to start fresh
Blended mash bill from 200+ whiskeys, with honest coverage. Unknown stays unknown; no invented numbers padding the chart
Tasting notes stamped with the proof at the time you tasted
A share card generated from your real bottle, made for the group chat
Milestones, including the day nothing original remains
Full JSON export and restore

NO ACCOUNTS, NOTHING WATCHING

Your bottle lives on your phone. No signup, no analytics, no servers of ours holding anything. There is nothing to log into because there is nothing collecting. Export your entire history any time, because it is yours.

One purchase. No subscription, no ads, no second tier. Charging monthly rent on your own whiskey notes would be ridiculous.

Free guides on starting and keeping an infinity bottle at thiefandblend.com.

Drink responsibly. This app tracks whiskey. It does not encourage drinking more of it.