Holdfast · Lifestyle · In development

Holdfast

Holdfast is a quarantine, tank-cycling, and new-arrival health protocol tracker for freshwater, marine, coral, planted-tank, and koi/pond keepers — built around a rule-based symptom triage engine, entirely offline.

What it does

Offline symptom triage: observed signs plus species return a ranked shortlist of likely conditions
Treatment conflict warnings, day-by-day quarantine and tank-cycling checklists, and a merged "Today" worklist
Water-test log, symptom and incident logs with photos, and a shareable clearance-card export

Screenshots

Screenshots coming soon.

Privacy

Holdfast has its own privacy policy, covering exactly what this app collects and how it's used.

Read the privacy policy → ← Back to all apps