Curve: Pet Diabetes Tracker

Track your diabetic cat's blood glucose, insulin, and curves. Generate vet-ready PDFs in seconds. Also handles CKD, pancreatitis, and arthritis.

Curve is a private notebook for diabetic pets — today, purpose-built for cats. It helps you keep track of what's actually happening: blood glucose, insulin, food, weight, and the small clinical signs that matter at the next vet visit.

If you're the kind of person who's been managing it with a shared Google Sheet because every other app you tried crashed or lost your data, this is for you.

— TRACK WHAT MATTERS — • Pre-shot and random blood glucose, in mg/dL or mmol/L • Insulin doses + dose-change history with reasons • Curve sessions: 12 hours, readings every 2 hours, with smart reminders • Meals, treats, water, vomits, energy and appetite shifts • Weight trend with vs-previous-period deltas

— SHARE WITH YOUR VET — • Generate a clean one-page PDF for any date range • Includes pre-shot average, in-range percentage, adherence, and curve summaries • Lists every dose change with reason — exactly what your vet needs

— BEYOND DIABETES — Curve also tracks CKD (IRIS staging from SDMA / creatinine / phosphorus / UPC), osteoarthritis injections, and pancreatitis meds. One cat, many conditions — all in one timeline.

— BUILT-IN SAFETY RAILS — This app is not a dosing tool. It does not tell you what to inject, when to inject, or whether to inject. It does not diagnose. It does not fire hypo alarms. The cat in your care is your vet's patient — Curve is the notebook you bring to the appointment.

— FREE FOREVER — Logging blood glucose, insulin, and basic events is and will always be free. You don't need to pay to take care of your cat.

— CURVE PRO ($19.99/year, 14-day free trial — or $39.99 once for life) — • Vet-ready PDFs with custom date ranges • Curve history & multi-session comparison • Up to 5 cats · multi-condition tracking • Renal & food database with carbs and phosphorus • Full history beyond 30 days • iCloud sync & Family Sharing

— PRIVACY — Your cat's data lives on your device. If you turn on iCloud, it syncs through your private iCloud — Curve never sees it. No analytics. No third-party trackers. No accounts.

Made by one person who's been there. Questions, feedback, vet-suggested features → zhiii0x@gmail.com.