Custos — Keeper of Scent

Custos is a free fragrance collection tracker and wear log for perfume and cologne collectors. Catalog your bottles, decants and testers, log what you wear, and get a daily pick from your own shelf that fits the live weather, the season and the occasion. Custos is where you decide what to wear. Open it in the morning and the answer is already there. Custos reads the live weather, the season, and the occasion on its own, picks from the bottles you actually own, and shows you the reasoning. No forms to fill out, no filters to set. It doesn't replace the sites where you research and read reviews. It's the layer where you decide what goes on tonight, and it keeps the record of what you wore. WHAT SHOULD I WEAR TODAY? Custos senses the day instead of asking you about it: live weather, season, occasion. Then it picks from your own shelf and tells you why it picked what it picked. THE COLLECTION AND THE LOG Track what you own with tiers and stock levels. Log your wears as you go, each one saved with its date and, when Custos has them, the day's weather and the occasion. ROTATION, DONE PROPERLY Custos tells you when a bottle has rested long enough to wear again, and when it hasn't. You tune the rest logic yourself. Every wear you log updates the picture of what's rested, what's overdue, and what fits tonight. Custos doesn't guess your rotation; it keeps it. LAYERING WITH REASONS Pairs drawn from bottles you already own, each one explained: a simple fragrance completing a complex one, or two scents with enough shared ground to blend and not so much that nothing new happens. A suggestion with an argument behind it. KNOW YOUR REAL GAPS No grades. No scores out of 100. Custos names the gaps in your collection as borderline, weak, or true, and explains each one, so the next bottle is different from the last on purpose. A CATALOG THAT'S RIGHT Over 2,900 human-reviewed fragrances, alias-resolved and classified by structure, with concentration labels kept verbatim the way the house writes them. Not tens of thousands of scraped rows. If a bottle of yours is missing, add it and wear it tonight. A human reviews it before it joins the shared catalog, and the review never makes you wait. YOUR COLLECTION IS YOURS Bulk-import from a spreadsheet with the fill-in template, or add a bottle at a time. Export everything as CSV or JSON whenever you like. FREE No subscription, no ads, no affiliate links, no locked features. No streaks, roasts, or judgments. Your collection is nobody's training data, and the Terms of Use say so in plain English. Whether you keep 4 bottles or 4,000, Custos keeps a collection properly: what you own, what you wore, what deserves a rest, and what to wear today.