About Rockkeep
A serious catalog for a collection that outgrew a spreadsheet or a shoebox of handwritten tags.
A rock, mineral, fossil, or gem collection accumulates its own quiet paperwork: where a piece came from, when it was found or bought, what it's worth for insurance, and which of the museum-style numbers you've already used. Most collections end up tracking that in a spreadsheet that drifts out of date, or handwritten tags that get separated from the specimen.
Rockkeep exists to be the record that doesn't drift: a permanent catalog number for every specimen, find sites and trips that count the haul automatically, display cases that track their own fill level, and a want list that turns into a real specimen record the moment you find the piece.
What we believe
Everything runs on your device
No account, no cloud backend. Rockkeep makes no network call of any kind, enforced in the app's own build process.
Your data belongs to you
Export a full CSV of your catalog, or a complete backup file with every photo, whenever you want. "Delete My Data" gives you a full, irreversible local wipe.
Built for real collections
Permanent catalog numbers, find-site and trip logging, and an acquisition ledger — the workflow of an actual collection, not a generic list app.
No ads, no telemetry
No analytics, no crash reporting, no advertising SDKs, and no in-app purchases. Every feature ships unlocked from the first launch.
A catalog, not an authority
Rockkeep records what you enter — it doesn't identify, authenticate, or appraise a specimen, and isn't a substitute for a professional geologist or insurance appraiser.
Who it's for
The weekend rockhound with a couple of shelves, and the serious collector with a fireproof filing cabinet of receipts — anyone who wants a catalog better than a spreadsheet, without handing their collection's details to a server somewhere.
Built by Beacon Light Investments
Rockkeep is developed and maintained by Beacon Light Investments. Have a question or a feature you'd like to see? Get in touch.