Save 30%! Subscribe to the Annual Plan for just $13.99/month!
Save 30%! Subscribe to the Annual Plan
for just $13.99/month!

Heart disease in dogs is serious.

Tracking it daily shouldn’t be.

Most veterinary cardiologists recommend monitoring your dog’s resting respiratory rate every day. Maven makes that simple, tracking your dog’s respiratory rate, heart rate, sleep, and activity to help you and your vet catch changes before they become crises.

Start from just $19.99/month (billed annually).
Sensor on us.

Built with veterinarians

Clinically validated

24/7 continuous tracking

Personalized to your pet

The everyday signs your dog’s heart might be struggling

Small and medium breeds are prone to mitral valve disease (MMVD), while large breeds often develop dilated cardiomyopathy (DCM) that compromises cardiac function. Either way, the first clues usually show up in how your dog breathes, rests, and moves.

Breathing faster at rest

When a dog is truly resting, you might notice the chest rising more than usual. A higher resting respiratory rate can signal fluid in or around the lungs.

Resting heart rate creeping up

Subtle increases over days or weeks matter. Trending up can be an early clue the heart is working harder.

Exercise intolerance

Shorter walks, more stopping, or skipping play. Parents often describe it as “he just seems tired” or “she won’t chase like before.”

Night restlessness or coughing

More wake-ups, pacing, or a soft cough that appears when settling down or after activity.

Belly or limb swelling

When the heart grows enlarged and can’t pump blood as it should, fluid can build up in the belly or paws, a sign often linked to congestive heart failure (CHF).

Sudden worsening is an emergency

The acute phase of these heart conditions is congestive heart failure (CHF). Rapid breathing at rest, severe lethargy, or collapse require urgent veterinary care.

You do your best, but it is easy to miss small shifts without help. That is exactly why Maven exists.

Turn “something feels off” into clear next steps

Maven learns your dog’s personal normal, then watches for meaningful changes. When something drifts, you get a friendly insight and what to do next.

Turn “something feels off” into clear next steps

Maven learns your dog’s personal normal, then watches for meaningful changes. When something drifts, you get a friendly insight and what to do next.

What Maven tracks and why it matters:

Looks for sustained increases that can suggest fluid build-up. You get context like “above your dog’s usual” instead of random numbers.

Watches for a persistent climb that may indicate the heart is under strain. Updates through the day when your dog is still.

Sees if walks are getting shorter or play is fading. Helpful for mitral valve disease (MMVD) and dilated cardiomyopathy (DCM), where stamina changes early.

Flags disrupted nights and clusters of wake-ups that often pair with cough or breathing effort.

Notes patterns around head shaking or increased drinking when relevant, without sending noise.

"

Peace of Mind for Pets with Heart Disease

The tracker is really impressive. My dog has heart disease, and I wanted a way to stop worrying about his breathing day to day. Maven has been the perfect solution. It’s already given me peace of mind, and I recommend it to anyone with an older pet or health concerns.

Becki Irving

FAQ's

Mitral valve disease in dogs, also called myxomatous mitral valve disease (MMVD), is most common in small and medium breeds under about 15 kg. It usually affects the left side of the heart and can raise resting respiratory rate as fluid builds in lung tissue. Maven helps by tracking that rate automatically and alerting you when it trends up.
Dilated cardiomyopathy (DCM) in dogs is more common in large and giant breeds and often affects the right side of the heart. Parents may see exercise intolerance, higher resting heart rate and respiratory rate, a swollen belly from free fluid, or puffy limbs. Maven surfaces changes early so you can talk with your vet sooner.
Look for quieter play, slower walks, subtle cough, more effort to breathe at rest, and a resting heart rate that is creeping up. These small shifts add up. Maven tracks the trends behind the scenes and lets you know when something is outside your dog’s normal.
Healthy dogs at rest typically breathe under about 30 breaths per minute and have a resting heart rate that is steady for their size and age. Maven learns your dog’s exact baseline rather than forcing a generic range, then warns you when readings trend higher than normal.
A heart murmur in dogs is a sound your vet hears. Some murmurs are innocent, others relate to structural heart disease like MMVD. Maven does not diagnose, but it does track resting respiratory rate, resting heart rate, sleep, and activity to catch meaningful changes that help your vet manage a murmur.
Maven cannot treat congestive heart failure (CHF), but it can highlight rising resting respiratory rate and heart rate, increased night interruptions, and falling activity so you and your vet can act before it escalates. If your dog shows sudden rapid breathing at rest, severe lethargy, or collapse, seek emergency care.
No. Maven is a daily early-warning and monitoring companion. Your veterinarian remains your medical partner for diagnosis and treatment decisions.
Yes, Maven supports cats too. Hypertrophic cardiomyopathy can relate to hyperthyroidism and may lead to thromboembolism. Maven’s at-home tracking of rest patterns and breathing can help you and your vet watch for change.
Your vet may suggest a lower sodium approach or specific diets. Maven adds value by showing how your dog responds over time, including energy, rest, and breathing changes after adjustments.
Yes. Maven automatically tracks your dog’s resting heart rate whenever they’re still, then summarizes changes over days and weeks so you can share clear trends with your vet.

While Maven helps you continuously monitor heart rate trends at home, it doesn’t perform electrocardiograms (EKGs) or replace diagnostic tools like a Holter monitor. Instead, it gives you and your vet valuable context between checkups, helping detect changes earlier.
Some medications can change heart or breathing rates. Maven tracks those trends so your vet can adjust doses early.

Catch heart disease in dogs before it catches them.

Heart disease in dogs does not wait for your next appointment. Start tracking resting respiratory rate, resting heart rate, sleep, and activity today. See small changes early and walk into the clinic with confidence.

Explore Dog Health Tracker
Get Maven for my Dog