Track every molt, every rack slot, every feeder cup — down to the day.
Crawlly BioLoger is the organizer and mathematical tracking utility built for reptile, tarantula, insect, and amphibian keepers who want precise forecasting without a single camera or sensor watching the tank.
📓 Specimen Log — Rack B, Slot 14
Four instruments, one field notebook.
No hardware, no cloud sync required — just careful manual logging and the math to make it useful.
Molt Forecasting & Cycle Math
Log every molt or shed date per animal and let the app compute your specimen's rolling average interval, then project a realistic next-molt window based on its own history.
Feeder Resource Planning
Keep a running inventory of crickets, roaches, mealworms, and other feeders. Set per-animal feeding schedules and let the tracker calculate how long your current stock will last.
Rack & Enclosure Management
Map out your entire rack or shelf as numbered slots, assign each animal to its enclosure, and log husbandry parameters — temperature, humidity, substrate depth — by hand, on your schedule.
Growth & Husbandry Logs
Record weight and length measurements over time, attach husbandry notes to any entry, and review trend history for every animal in your collection — all computed locally on-device.
Molt cycle forecast calculator
This is the same math the app runs on-device: enter a last-molt date and a species-typical interval, and get a projected forecast window with confidence banding — no data ever leaves your browser.
Enter a last molt date above and run the forecast to see your predicted window, confidence band, and days remaining.
Built by keepers, for keepers.
Nothing to collect, because nothing leaves the terrarium.
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1. Information We Collect
Crawlly BioLoger collects nothing. There is no account creation, no telemetry, and no background data capture. Every molt date, feeder count, rack slot assignment, and growth measurement you enter stays exactly where you typed it: on your device.
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2. How We Use Information
Because no information is ever transmitted to us, we have nothing to use, analyze, aggregate, or sell. The app's forecasting math runs entirely on your device against your own locally stored entries — we never see the results, and we never want to.
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3. Data Storage
All specimen profiles, molt histories, feeder inventories, rack maps, and husbandry notes are stored locally on your device's storage. There is no cloud backup, no remote server, and no synced database maintained by us or anyone else.
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4. Third-Party Services
Crawlly BioLoger does not integrate third-party analytics, advertising networks, crash reporters, or tracking SDKs of any kind. No third party ever receives a copy of your logs, because no copy ever leaves the app.
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5. Data Security
Since your husbandry data never travels over a network, it is not exposed to interception, server breaches, or cloud misconfiguration. Your device's own operating-system protections are the only safeguard needed, because that's the only place your data ever exists.
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6. Children's Privacy
Crawlly BioLoger does not knowingly or unknowingly collect personal information from anyone, including children under 13. As no data of any kind is gathered from any user, the app is inherently compliant with children's privacy protections such as COPPA.
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7. Your Control
You are always in full control of your data. There are no accounts to manage and nothing stored remotely to request deletion of. Uninstalling the app permanently removes every specimen profile, molt log, feeder record, and rack assignment from your device.
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8. Changes to This Policy
If our practices ever change, we will update this policy and revise the effective date above. Since the app's core design — local-only, sensor-free tracking — is fundamental to how it works, any future changes would still uphold this same no-collection principle.
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9. Contact
Questions about this policy can be sent to privacy@crawllybiologerapp.com. We're happy to explain exactly how (little) data handling happens under the hood.
Write to the notebook keepers.
📬 Whether you've spotted a bug, want help setting up your rack layout, or have a partnership idea worth hatching, we'd love to hear from you.
Questions, feedback, or just want to talk shop about your collection.
Trouble with logs, forecasts, or rack setup inside the app.
Breeder programs, expos, and collaboration proposals.