Patter: a pet health tracker for cats and dogs.
Patter is a pet health tracker app for cats and dogs, available on iPhone and Android. Keep daily checks, vaccinations and vet visit information together.
The records you add connect health with nutrition, weight, water and mood, so guidance can reflect your pet’s history. Patter does not diagnose or replace a veterinarian.
Record daily checks with AI-assisted evaluation
Daily Visual Checks guide at-home observations of your pet. You record what you see, sometimes with a photo, and Patter evaluates the check with AI. Saved observations become part of your pet’s care history.
The genuine app screen above shows a dental check asking for a photo of Milo’s teeth and gums. If a check raises a concern, such as unusual gum redness, Patter surfaces it and recommends veterinary follow-up; it does not establish a dental diagnosis.
Read weight, food and water records together
Enter weight measurements you take and record food and water intake. Patter keeps weight history and interprets the trend, alongside nutrition and water-intake analysis for the same pet.
When you record a change in drinking, for example, the food and weight history give that observation context. Known conditions and allergies saved in the profile also inform relevant analysis. Explore nutrition in Patter for the feeding tools, or our guide to weight and body condition for what a weight record can and cannot tell you. Your veterinarian sets appropriate weight targets.
Follow mood patterns across days
Record your assessment of your pet’s mood with a daily score from 1 to 5 and a short questionnaire. Review that history in a graph or list, with Patter’s evaluation of the pattern.
Mood-related health notifications can be raised when a pattern warrants attention. These start from the observations you enter and contribute to the same health picture as checks, nutrition and care history.
Keep vaccinations and vet visits organised
Keep vaccination history, upcoming care dates and veterinary visit information alongside your everyday observations. Patter’s reminders use relevant pet and application information to support your care routine.
Vaccination dates and notices
Your veterinarian sets the schedule; you keep it in Patter. See which vaccine is next, approaching and overdue notices, and why a vaccine is relevant for your pet. Our dog vaccination guide and cat vaccination guide explain the timing and why individual plans vary.
Veterinary visit records
Save the visit information you enter with your pet’s history. These are owner-kept records, without a connection to your clinic’s medical record system. For help preparing what to bring and ask, use the vet visit checklist and printable notes.
Understand changes using your pet’s saved context
Patter’s AI-evaluated health notifications draw on daily checks, vaccination status and relevant signals elsewhere in the app, including mood analysis. Guidance can reflect a condition already recorded in your pet’s profile and suggest a possible association worth discussing with your veterinarian.
A possible connection is not a clinical finding. The AI assistant can use relevant saved profile details and history when you ask about your pet, and recommends veterinary care when appropriate. Keep your entries current: that guidance depends on the information you provide.
Keep care connected for your cat or dog
In Patter, saved entries do more than form a diary: your pet’s profile and history inform checks, notifications and assistant answers. A weight record, a mood entry and a vet visit all contribute to the same growing picture of the animal you care for.
Explore care for cats or dogs, and how Patter supports veterinary care. Each pet has a separate profile and history; adding more than one pet requires PatterPro, Patter’s paid subscription.