10,000+ cats have been assessed with Sylvester

Cat owners and veterinary professionals share how this simple tool has helped them spot discomfort early, improve quality of life, and strengthen the human-animal bond.

“Based on the app results, I took my cat to the vet and discovered he had water in his lungs and low hemoglobin. It saved my cat’s life.”
— Scott, Cat Owner

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“…so beneficial for surgery patients because we can monitor pain at home, determine if a recheck is needed, and see if pain meds are working. It will become a key part of our post-op process.”

— Wild Rose Cat Clinic

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“Kizmet was nuzzling and purring which made his human think he was happy, but Sylvester’s analysis said otherwise so she called Kizmet’s vet. He was in pain. He was miserable. I didn't know!”
— Linda Hall, 19 Cats and Counting, Pet Life Radio

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“My cat Hadley has a severe skin allergy. The app has been an amazing tool to track her flare-ups and show our vet exactly how she is doing between visits.”
— Natasha, Cat Owner

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“I didn’t expect it to be so accurate, but it picked up that my cat was in pain before I could tell. It made me get him checked right away.”
— Cat Owner

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“I tested this app on 2 of my cats, Chunky, who has chronic kidney disease, and Stormy, who is healthy. It correctly identified that Chunky was in discomfort and Stormy was not. I was surprised at how accurate it was.”

— JL, Cat Owner

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“This app really impressed me. My beloved 8-year-old cat was diagnosed with aggressive lymphoma and passed away two weeks later. I ran a photo of him through Sylvester shortly before his diagnosis and it said 100% unhappy. I wish I had used it sooner, it might have given me a clue to act faster.”
— Carolina, Cat Owner

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I have enjoyed using your app with my cat my trix. He was a special needs cat. He crossed over the rainbow bridge on Monday. Over the past weekend before he passed I finally got a happy from the app. I was so excited because I have really been spending some good quality time with him. It brings me some comfort knowing this. I thought I’d let you know.
— Cat Owner

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“She is having issues and on her way to the vet. This was very precise!”
— Jessica, Cat owner

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