Listen to the heart you love.
A 30-second scan at home reads your dog's heart rate, rhythm and a murmur screen in seconds, and tracks it for life. Heart Journal is £2.99 for your first month.
No vet trip. No special kit. Just your phone and 30 seconds.
Recording Daisy
Live capture0:12
Daisy's heart check
14 May 2026
Daisy's heart looks healthy.
Heart rate, rhythm and a murmur screen, in plain language.
82
bpm · heart rate
45
ms · variability
3,400+
recordings analysed
UK-registered
cardiologists behind every vet review
95%
agreement with a vet listening with a stethoscope
4.8★
average App Store rating
A heart check at home, in seconds.
01
Record at home
Hold your phone against your dog's chest. The app guides you and it takes about 30 seconds. No fiddly setup.
02
See the results in seconds
See your dog's heart rate, rhythm and a murmur screen straight away, written in plain language you can actually understand.
03
Track their heart for life
Scan again every few months and we track the trend, so any change shows up early. Want a specialist's read? Add a cardiologist review whenever you like.
What you see after every scan
A heart check you can actually read.
Every scan gives you your dog's results in seconds, with heart rate, rhythm and a murmur screen, written so you can understand it. It's also the next entry in your dog's heart history.
- Resting heart rate, measured in beats per minute
- Heart rate variability, an early indicator of stress and recovery
- Rhythm check. Is the heart beating in a steady, even pattern?
- A murmur screen, listening for whooshes, gallops or other flags
- Every scan added to their baseline, so changes show up early
- An optional cardiologist review whenever you want a specialist's read
Daisy's heart check
14 May 2026 · instant result
Heart rate
82 bpm
Variability
45 ms
What this means
"Daisy's heart sounds normal for her age and breed. Nothing to act on. Worth recording again in three months to keep an eye on her variability."
When a heart check matters most.
High-risk breeds
Some breeds, including Cavaliers, Dachshunds and Boxers, carry a higher lifetime chance of heart valve disease (MMVD). Regular checks help spot changes early.
Older dogs
Dogs aged seven and over benefit from regular heart checks. Once a year helps catch gradual changes before they become a problem.
New symptoms
A new cough, tiring more easily on walks, or faster breathing at rest are all worth a check. Scan, then share the report with your vet.
A healthy baseline
A scan while your dog is well sets their normal. It is the reference every later check is measured against.
Based on veterinary cardiology guidance on breed and age.
Know what's normal, catch what isn't.
One scan is a snapshot. A handful, taken over time, become a baseline, your dog's personal normal for heart rate and rhythm. When something drifts, it stands out long before you would notice anything was wrong.
Resting heart rate
Last 6 checks“We know what's normal, so we'll catch what isn't.”
Reassurance today, and every year after.
I'd been worrying about Luna's cough for weeks. Booked her in three times and was always told she was fine. Recording her at home took thirty seconds and the result was there before I'd put the kettle on. I added a cardiologist review for peace of mind, and it finally put my mind at rest in something I could actually read. Now I scan her every few months, just to keep an eye on things.
Sarah M.
Luna, 6-year-old cocker spaniel
Luna's heart rate
78 bpm
Heart rate variability
52 ms
Heart Journal
One subscription. Their heart, all year.
Heart Journal covers the scans, with unlimited at-home heart checks, your instant results and a baseline that follows their heart over time. Start with £2.99 for your first month.
- Unlimited at-home heart scans
- Instant results, with heart rate, HRV, rhythm and a murmur screen
- A baseline that tracks their heart over time
- Check-in reminders so nothing slips
then £39.99 a year · cancel anytime
Get the appNo vet trip, no special kit, just your phone.
Optional add-on
£19.99 per review
A cardiologist review, whenever you want one
Want a specialist's eyes on a recording? Add a vet review for £19.99. A cardiologist listens to the scan and writes it up in plain language.
Common questions
The app walks you through it. You hold your phone against your dog's chest, just behind their front leg, for about 30 seconds while they rest. Most dogs find it relaxing.
Sonus Health is benchmarked against veterinary cardiologists listening with a stethoscope and reaches 95% agreement on heart rate, rhythm and murmur screening. The instant result comes from our AI. When you want a specialist's read, you can add a cardiologist review.
Your result flags it clearly, in plain language, and points you to what to ask your own vet about. For a specialist's written read you can add a cardiologist review. We don't diagnose or replace an in-person exam; we give you and your vet a better starting point.
It's optional. Your scans and instant results come with Heart Journal. When you want a specialist's eyes on a recording, add a cardiologist review for £19.99 and they listen to it and write it up in plain language.
Heart Journal is £2.99 for your first month, then £39.99 a year. That covers unlimited at-home scans, your instant results and baseline tracking. A cardiologist vet review is a separate option at £19.99 whenever you want one. Cancel anytime.
Sonus Health works on dogs of all breeds, sizes and ages, from puppies to seniors. If your dog will sit or lie still for 30 seconds, we can record them.
Yes, anytime, from the app or your app store account. You keep access until the end of the period you have already paid for.