You bought six bottles of something good, put them somewhere sensible, and three years later you cannot remember what you have, where it is, or whether it is ready.

Cellarium is a cellar book for people who keep more than a few bottles. Every bottle is its own record — not a number next to a name — so it has its own place on the shelf, its own price, its own history, and its own moment to be opened.

PUT A BOTTLE IN, IN TWO PHOTOGRAPHS
Photograph the front label and the back. The wine is read off the label for you — producer, wine, vintage, region, grapes — and you confirm or correct it before anything is saved. Nothing is ever written to your cellar without you agreeing to it.

No signal, or a label nobody can read? Type it in. Entering a bottle by hand is a first-class path, not a fallback.

FIND IT AGAIN
Describe your racks as they actually are: a grid of slots, or just a named area. Cellarium remembers which hole each bottle is in and draws you a map of the rack with your bottle marked. Adding six bottles at once walks them along the shelf and tells you where they landed.

KNOW WHEN TO OPEN IT
Drinking windows come from the back label where it is printed, from published tasting notes where they exist, and otherwise from an estimate that is always labelled as one. You are told which, every time — a guess is drawn as a guess, because deciding when to open a bottle is not a place to be quietly confident.

Reminders arrive when a bottle enters its window and again before it closes.

EVERY MOVEMENT IS KEPT
Bottles in, bottles out, moves between shelves, corrections. The history is written once and never rewritten, so the statistics are real: what you drink and how fast, what your cellar is made of by colour, country, region, producer, grape or vintage, what it cost you, and what it is worth now.

WHEN YOU DRINK ONE
Photograph the label again to take it out, or open the bottle's own screen. Then, if you want, a score and a note — attached to that bottle, so the same wine drunk twice keeps both impressions.

ALSO IN THE APP
- Critic scores looked up for you, where a critic has covered the wine
- Import an existing cellar from a spreadsheet, with a dry run before anything is written
- Printable QR labels: scan one with your phone's camera to open that bottle
- Your whole cellar readable with no connection; changes queue and sync when you are back
- Search, filters and sorting by every dimension the cellar has
- Export everything you have as JSON and CSV, whenever you like

NO ADVERTISING, NO TRACKING
There is no advertising, no analytics, no crash reporter and no data broker. Nothing about you is sold or shared. Label photographs are sent to an AI provider to read the text on them, and nothing identifying you goes with them — this is set out plainly in the privacy policy. Delete your account from inside the app and everything goes, photographs included, with nothing retained.

WHAT IT IS NOT
Cellarium does not sell wine, does not link you to sellers, and has no shop of any kind. It is a record of what you already own. It is intended for adults of legal drinking age.

An iPhone version will follow.