Reviews

This incredible gadget is heaven sent for anyone who dreads coming home to yet another feline murder scene. My cat is a dedicated mouse hit man and I've spent the last two years finding disgusting surprises - dead or alive - throughout the house. Turns out we didn't have a mouse problem until we got a cat. He recently upgraded his skill set to rats, and something inside me broke. Although this cat flap cost more than my last holiday, it's made life so much more relaxing. I no longer have to wonder what carnage I have to come home to or what on earth I've trodden on in the dark at 3am on the way to the loo. Thank you, OnlyCat. No really, THANK YOU.

This product have changed our lives. No mouse (dead or hurt) are waiting out side the bedroom door in the morning. It’s 100% amazing. This door have blocked our cat every time he tries to get in, carrying a mouse in his mouth. It has also blocked a big rat, trying to get in by itself.

I had this installed and within 1 hour saved me from having a pigeon in my house! Within 2 hours it stopped a mouse running round and now 3 days in stopped my cat bringing a rat indoors! This is the best product I’ve purchased and well worth the money, I just wish we had it sooner! With my second cat being let loose in a few days it has reduced my anxiety ten fold. THANK YOU ONLYCAT.

Only Cat has literally changed my life. No more living in fear every time the cat flap opens and no more chasing mice round at 3am. As someone who is irrationally terrified of mice my only regret is not buying OnlyCat sooner.
Martin and Tomas should be very proud of their creation. The customer service they provide is 10/10, always getting back to you quickly with any queries!
I was hesitant about it the cost, but it’s worth every penny.

Purchased the Onlycat after one of my cats brought a live rat in to the house. I am really pleased with it and its working brilliantly, great having the option to set curfews. Customer service is second to none. Emma had the patience of a saint helping me set it up which was'nt difficult, I'm just bad with technology !!! Would highly recommend

Wonderful machine, perfect service, great product.

After many 3am surprise deliveries from my cat (mouse,rat,bat,bird) I began my search for a catflap that could keep these surprises outside and not running around my bedroom.
Enter Onlycat....
This is a one of a kind and remarkable!
It works with an AI camera that learns to recognise my cat and allows her access in/out of home, but it also recognises when she brings home contraband and locks the door and keeps her outside.
It has an app,which sends a little video each time the catflap is used, which is really helpful to know when she's in/out/barred temporarily and it brings me immense peace of mind.
I cannot recommend it enough.

Absolutely brilliant device! Yes it’s expensive but it’s worth the money given the tech involved! My wife and kids love our cat but go into panic mode if he brings them a ‘present’! This cat flap stops him in his tracks literally! Is very effective stopping the cat bringing in contraband and also very funny watching him try through the app! Also due to its microchip recognition, we are now looking to introduce a kitten to the household, with the confidence he can’t get out while allowing our other cat to carry on as normal. Great bit of kit!

OnlyCat works as advertised - we're so glad we got it! No more mice, rats and birds loose in the house. The app is easy to use and the staff are friendly and helpful. Highly recommended.

It was a tricky start as the latch wasn't popping up, allowing an outside cat to come in and spray, but after a chat with the very helpful support people and a custom rule being sent to our cat flap the sprayer hasn't been able to get in, and we don't even see it trying any more. One aspect that was interesting is the flap making an angry meow noise when it detected the spraying cat, that was quite effective but needed changing as they seem to have got used to it.
Our cats were nervous about it at first and we had to help the second cat through manually a few times before they got the idea but they are happy with it now.

I love our cats, but I hate rodents. Only cat is an amazing bit of kit. Its detection sensitivity is superb and has so far had a 100% success rate with ‘contraband detected’ and their entry barred. On one occasion just having a tongue sticking out was enough to temporarily bar entry.
Not cheap, but worth every single penny. I’m telling everyone I know who has a cat about it .

Updated review 4/20/26
After the first 2 months we finally saw one of our cats kept out due to having a rat in his mouth, which was great.

However in March my husband noticed a weird smell and something off about the cat door. The wall adaptor was hot to the touch due to the wires of the cord separating from the metal piece that goes into the adaptor. This resulted in the wall outlet needing to be replaced and could have started a fire if my husband had not been home at the time. I reached out to customer service and this was their response:
"I’m sorry to hear about this issue. We’ll raise it with our power adapter supplier for further investigation.

Incidents like this are extremely rare. In some cases, a localised fault can lead to overheating and minor plastic deformation, which may cause the adapter to stop functioning. That can happen if the cable is snagged, leading to damage of the internal connection, increasing resistance, and ultimately localised heating/melting.

In the meantime, you can safely use an alternative adapter, such as one from an iPhone, MacBook, or Android device. Would you like us to send you a replacement adaptor?

Apologies for the inconvenience caused, and thank you for bringing this to our attention."

We have never had a similar issue with any other charging cables and the low sense of urgency from customer help has soured our impression of this door.

In addition to the above experience we a were disappointed that clear installation instructions were not included in the box, the app is not intuitive for a first time customer and the size of the entry flap for our cats is too small. Our cats (9 pounds and 16 pounds) will use the door but we can tell that they do not like it compared to the size of the SureFlap Pet Door.

This product is not worth $700-$900, it's more of a $300-$400 product but since they are currently the only company that currently has a prey detecting pet door available for purchase they can charge a lot.

Some things in life are expensive. Some things in life are priceless. OnlyCat falls into the latter category. I can’t begin to put a price on the peace of mind having an almost foolproof way of preventing my cats from bringing in all manner of critters, from fieldmice to rats, birds to bats, and frogs, into the house.

Not only can I sleep soundly, not listening out for the familiar sounds of a cat toying with its prey, or find decaying remnants of animals that have been batted under sofas, cupboards and beds, but this has changed the behaviour of the cats. Just over a year since installation and I’m being alerted to far fewer ‘contraband detected’ incidents, to the point where now, the cats don’t even bother trying the cat flap so I sometimes wake up to a dead mouse on the outside door mat, but far less often than I was being woken up to previously.

This is seriously worth the money.

Honest review with pros and cons

I bought an Onlycat catflap and I can honestly say it has been completely life changing for us. Our cat is proper hunter, it started with worms, then mice and birds and then she moved onto large pigeons. We were up countless nights chasing half dead mice or coming home to decapitated pigeons in our living room. I saw the catflap and it’s not cheap, but after looking into ZeroMouse and other options which are simply not as effective, I took the plunge and bought one. A few hours after installing it, it blocked the first mouse being brought in, and I have lost count how many pigpens and birds and other animals it’s blocked since having it in October. Maybe about 20+ attempts? The technology absolutely amazes me. The customer services are also really on it. I had one tiny installing issue and within an hour it got sorted. The only con, which isn’t really a con, is that it took one of my two cats about 5 days to learn how to open it. As it scans every exit an entry, so it has a tiny delay until it clicks open. Cats learn it very quick. Mine is wired in via a plug near-ish our door. It comes with a long string cable. Everything pings up on my phone. You can download the videos if you want, I usually download the ones where my cat is being blocked with a bird in its mouth so I can laugh at it and celebrate.
So my verdict overall. It’s not cheap! But the technology is absolutely incredible. We’ve not had a single dead animal in our home since. It got so bad that I was going to rehome our cat. We have our cat, and we can all sleep at night again. I don’t know how to attach videos but I have many to show !

This is a great product.
It was easy to swap out our sureflap for this new catflap & although I needed a longer USB cable it was easy enough to route it to a power point.
We've now successfully repelled over a dozen attempts by our cats to bring in mice in only a 2 week period.
We also found that one of the neighbours' cats regularly poke its head into the cat flap!