Guide • 2026-08-06
Free Liquor Inventory App: What “Free” Usually Means
There are plenty of free bar inventory apps. Only a few of them are still free once your data is in them.
Searching for a free liquor inventory app returns a long list, and most of the results are free in a way that expires. That’s worth understanding before you spend a season entering 180 SKUs, because inventory data is expensive to move and everyone building these products knows it.
The four kinds of “free”
Free trial.Thirty days, then a card. Honest enough, and it’s usually stated up front. Just know the clock is running while you’re still learning the tool.
Freemium with a ceiling. Free under some limit — one location, fifty items, one user. The limit is invariably set just below what a working bar needs. The variance report, the thing you actually came for, is often the first paid feature.
Free because you’re the product. No charge, but the terms let them use your purchasing data. For a bar, that data is your supplier pricing and volumes. Worth reading the terms before deciding whether you mind.
Actually free. Open-source software with a real license. No tier, no expiry, no seat count. Rarer, and it looks different from the others in ways you can verify.
Five questions to ask before you commit
- Can I export everything, right now, in a format I can read? If the export is a paid feature or a support ticket, your data is hostage. Test this on day one, not on the day you leave.
- Is the variance report included? Counting is the work; variance is the payoff. If the number you actually need is behind a tier, the free version is a demo.
- What happens at the limit? Read-only? Locked out? Find out before you hit it mid-count.
- Where does the data physically live? If it’s their server, your access depends on their business continuing to exist.
- Is there a license, or just a pricing page? A real open-source license (MIT, GPL) is a legal commitment. A pricing page that currently says $0 is a marketing decision that can change on a Tuesday.
Why we built ours the way we did
Open Source Barware is free in the fourth sense. It is licensed under the GPL (v3), which means the permission is legally granted rather than offered — nobody can revoke it later, including us. The GPL goes further than a permissive licence: anyone who redistributes a modified version has to keep it open too, so it cannot quietly become somebody’s paid product.
- No tiers. The version you download is the entire program. Variance, POS reconciliation, count sheets, history — all of it.
- No account. Nothing to sign up for, no login to lose.
- Your data is on your machine, in readable files, exportable to CSV whenever you want.
- No seat fees. Put it on every machine in the building.
- Tenths counting and enforced date windows — the two things that make variance numbers trustworthy — are standard, not premium.
The honest trade-off: there’s no support contract and no account manager. It runs on your hardware, and if you want a company to call at 2 a.m., a paid product is a legitimate choice. What you get instead is a tool that cannot be taken away, repriced, or sunset.