Name: OnlyCat - Microchip Cat Flap with Prey Detection
SKU: OC-1000
Availability: InStock
Rating: 4.88 (618 reviews)

618 owner reviews4.88/5

Rated 5 out of 5

Greg Wilton – 2 September 2025 Google

For two years our little Gus was regularly (sometimes three times in one night) bringing in live mice, then chasing them around the house. We would find ourselves strategically leaving tuppaware containers around the house to aid the quick capture of his prey. It got to the point that I’d struggle sleeping, waiting to hear the old cat flap go, fully expecting him to be bringing in more victims.
Since the installation of the onlycat flap in December we have not had one uninvited guest. It has correctly identified every single time that Gus has approached with contraband in his mouth. It is a fantastic product that has genuinely improved my sleep/life.
In addition the onlycat team has been on hand to aid with any questions I have had. Five stars just isn’t enough for this product/team. THANK YOU.
Rated 5 out of 5

Sarah Bonam – 2 September 2025 Google

Absolute game changer! If anyone else fears the bang of the cat flap, especially at this time of year, this solves that problem and takes away a whole load of stress.

I was constantly checking our garden cameras when they went out to make sure one of the cats wasn’t bringing anything back with them that I was going to have to chase round the house. It was easy to swap over from our previous microchip cat flap and the app has been more stable.

There are some things on this app that I miss, like a quick list of which cat is out and in, but OnlyCat are working on that and they regularly roll out updates that have also learnt that from the contraband alerts.

If you have a ninja cat that can defeat the locked in lock – one of ours worked out how to push it down and pull the door in! – you can get an optional modification done but make sure you get it done before it ships or you have to take the flap back out and send it back. They did sort it and return it within 3 days but covering the hole in the door up was a pain during that time.

If you have cats that hunt and don’t want to deal with the drama you need OnlyCat in your life for sure!
Rated 5 out of 5

Samantha Barham – 2 September 2025 Google

Had the Only at cat flap for over a month now. Easy to set up and install (quick swap from SureFlap), I love seeing the videos of my boys coming and going throughout the day, whilst knowing I’m not going to come home to carcases on the carpet or worse, live creatures running around! Any time I’ve needed support, they’ve been quick to respond and sorted things easily. Great product and a team that really seem to care they get things right
Rated 5 out of 5

Mo Gillespie – 2 September 2025 Google

This product is FANTASTIC! I installed my OnlyCat a couple of weeks ago, and today (for the first time since installation) my naughty cat attempted to bring in a mouse. OnlyCat did its thing – ‘contraband detected’, secured the flap, and denied entry! I LOVE it. So grateful for the hard work by the OnlyCat team in developing this brilliant product – a must-have for anyone whose cat likes to bring unwanted gifts into the house!
Rated 5 out of 5

Penni Johnson – 2 September 2025 Google

Our cat has been using a regular cat door for 2 years with no issues bringing anything unwanted into the house. He has the luxury of coming & going at his leisure. In late April he brought home a dead, gutted chipmunk and the next day he brought home a live “house mouse”. I yelled his name, he let it go, it ran under the couch, and we bought 20 glue traps and 10 mouse traps. Never did get the darn thing!! After that we locked his door and he proceeded to drive us nuts meowing to go out and then at the window to come in. After an exhaustive search trying to find a cat door that wouldn’t allow “contraband” to enter the house, I came upon OnlyCat. After debating the cost and that he could go back to his life of leisure and asking lots of questions to the company, we decided it was worth it. We took him to the vet and got him microchipped and connected the door to our Wi-Fi and it recognized his chip automatically. We initially set it up to unlock when it detected his chip but it takes 1-2 seconds for the door to unlock itself and he would bump his head into the flap and then walk away. We changed it to the “training” mode so door does not lock but made sure to click on the detect contraband and lock door option. Once we passed him through a couple of times he got the hang of it and realized he could now come & go. Initially he would test the door with his paw to make sure it was open. Hysterical watching on the video feed!! 😀 Two nights ago at 10:49pm he tried to bring in a field mouse, 3 times the size of a house mouse! I didn’t know he tried that as I didn’t check the video until later in the day after I went into the garage and there was the dead mouse with his head lying next to him 🤢. I put a pail over it and when my husband got home I said, “The cat door paid for itself, he tried to bring in a mouse last night. It’s in the garage under the pail.” My hubby said, “That’s a big mouse!” We’ve had it for 1-1/2 weeks and it did its job the first time! Love a product that works as advertised 👍. Hopefully the cat will learn he can’t bring anything in with him, although the grandkids & I enjoyed the “contraband caper”!!
Rated 5 out of 5

Moos – 2 September 2025 Google

I have had my cat flap for a week now, and I am very happy with it.
Unfortunately, my first cat flap was defective, but after contacting OnlyCat, they provided excellent support. I received a new cat flap, and the communication was smooth and very customer-friendly.
Rated 5 out of 5

Sam Chapman – 2 September 2025 Google

Simply the best cat flap. If you have a cat that keeps bringing ‘presents’ (some presents being more alive than others), this will be the best thing you’ll buy all year. It really works at detecting prey in your cat’s mouth, is a very solid build, and looks great! I hadn’t considered about the aesthetics of a cat flap, until I saw how nice the OnlyCat one was, and now I can’t look at another cat flat without thinking how much better the OnlyCat one is. If you have a nice door, then it only makes sense to get a nice cat flap!

Communication with them has also been great, answered any questions/queries quickly which always helps. 10/10 would recommend, it will change your life!
Rated 5 out of 5

Katarina Green – 2 September 2025 Google

No more Mr Mice Guy! Exchanging my existing cat flap (Sure flap) to OnlyCat took me five minutes, installation to wifi and app to set up the system took additionally three minutes. One hour later all the three cats were identified and “trained” to the cat flap. Within 24 hours the system blocked cats with “unwanted gifts” twice. A total life saver.
Rated 5 out of 5

Cathy Marsh – 2 September 2025 Google

I’ve waited 9 long years to be able to sleep the whole night without the worry of my much loved cat bringing me unwanted live presents to deal with. This has meant getting up & down up to 5 times a night to let her in & out & check her jaws are free of unwanted presents.
Always a little skeptical with big purchases, are they worth it, do they do what they say on the tin. Shouldn’t have worried 100% worth it, got my sleep nights back & can go on holiday as family will now cat sit again. The prey detection works a dream & lots of extra features on the app I didn’t think I’d need nor use. Wish this had been around years ago.
Much relieved cat Mum.
Rated 5 out of 5

Andrew Nordbruch – 2 September 2025 Google

What a life changing product this is! No more picking up dead mice, or hunting down live ones in the house! I saw results within the first few days of it being installed! Easy straight swap from a Sure flap (same shape), and being mains powered means it can never run out of batteries and lock my cat out!
Rated 5 out of 5

Rodger Mann – 2 September 2025 Google

This product works brilliantly! Our cat is a stealthy killer of anything smaller than a possum . It would regularly bring in bunnies, lizards, and rats, and being in Texas, snakes. She has tried several times to bring in various types of prey only to be blocked – I highly enjoyed seeing the technology work! This is a fantastic product and a great team of people made this product a reality. Well done!
Rated 5 out of 5

Ben Murphy-Ryan – 2 September 2025 Google

Love the OnlyCat – was an early backer and had the flap in for a year now – such a great product and reassurance that no contraband will come through. The app is evolving as more functionality comes out, but it does exactly what you need it to right now – help manage profiles, curfew, see who has come in/out and recognise chips of our and neighbourhood cats. Like any product there may be some issues, but found onlycat very responsive and proactive in identifying what’s happening – sometimes before we even spotted the issue.

Overall – thoroughly recommend – well done to the team and look forward to seeing the success from the onlycat community!
Rated 5 out of 5

Jorick Jansen – 2 September 2025 Google

The OnlyCat is a great product! Especially in the summer, my cat brings a lot of mouses and birds inside (which are still alive…).

After installing the OnlyCat, my house is finally prey free!

Installing was quite easy, cause it fits the dimensions and screw holes of my previous cat flap. Besides that, it was really easy to pair the chip of my cat and activate a door policy. Had some trouble with the app in the beginning, but that was because of the VPN which was active. After disabling it, it worked flawlessly!

The first weeks my cat was a bit afraid of entering from the outside (maybe because of the infrared lights?), but after a couple of times she was used to it, entering and exits multiple times a night.

Great product, 5 stars recommendation! 🥳
Rated 5 out of 5

Sara Odell – 2 September 2025 Google

Works perfectly, peace has been restored!
My husband easily installed this door and it stopped my cat from bringing in a vole the very first day! Since then we’ve seen several stops AND there haven’t been any misses. I no longer wake up dreading what “gift” is going to left on our stairs, my carpets actually stay clean, and I can better enjoy my cat and my house. Great product, HIGHLY HIGHLY recommend.
Rated 5 out of 5

oksana pugach – 2 September 2025 Google

Great product and great team. This cat flap solved our problem of our cats bringing us “gifts” ( both dead and alive) into the house. Since installation, the flap has sensed and prevented every attempt. In addition to the product, the OnlyCat team is super helpful with any issues or questions. Highly recommend!
Rated 5 out of 5

Leah Bywater – 2 September 2025 Google

I cannot praise this company and product enough. For years with different cats and in particular with our 2 year old boy we have had to live with them bringing in mice and rats and birds. Our young man brought in a live rat and dropped it in the bedroom for us, so kind! This cat flap is a game changer. I can go to bed and keep my bedroom door open and sleep easy. The company is fantastic as well, you ask a question and get an immediate response, they have also set up a fb page for purchasers of the cat flap so we can all share our experiences and help each other. They are fantastic and the product is out of this world.
Rated 5 out of 5

Peter – 1 September 2025 Trustpilot

No more Mr Mice Guy

No more Mr Mice Guy! Exchanging my existing cat flap (Sure flap) to OnlyCat took me five minutes, installation to wifi and app to set up the system took additionally three minutes. One hour later all the three cats were identified and “trained” to the cat flap. Within 24 hours the system blocked cats with “unwanted gifts” twice. A total life saver.
Rated 5 out of 5

Tony M – 30 August 2025 Trustpilot

OnlyCat has saved my sanity.

I was fed up with frequent nights of broken sleep and having to remove live or dead mice at 4am – and usually live but injured birds at all times of the day. Whilst not 100% perfect, OnlyCat has changed all of that and saved my sanity.
It videos the cat entering the flap and locks, if there is any sign of ‘contraband’ in the cats mouth. I’m not too good on the technical stuff but put simply everyone videos are uploaded to the OnlyCat server where the programme learns, evolves, adapts and improves for the benefit of all users and new purchasers. Users also have access to the company via email, Facebook user group, message and even telephone and they are super keen to help.
All in all I’m very pleased with the product and the amazing company support and very happy to recommend it to anyone.
Rated 5 out of 5

B. Fischer – 21 August 2025 Trustpilot

Got our quality of life back

We were already using a SureFlap cat flap. Unfortunately our two cats prefer to deliver their prey to us alive (mice, birds, bats, earthworms).

On rainy nights we often had to chase mice around the house several times. It wore our nerves down. Birds that messed up the whole house while we were at work and then got plucked anyway are also a thing of the past now.

The flap was in stock and delivery reached us within a week. On delivery there were about €35 of customs charges. Payment was by credit card or advance transfer.

Installation was easy, as the flap fits the SureFlap opening. The OnlyCat does need power, though. A socket has to be within reach.

At first our flap did not show up as a device in the app. Support solved that straight away.

The app is now also available in German, which makes handling considerably easier.

One cat was going in and out after just 2 days. The second cat took two weeks to start using it.

Prey was detected from the very beginning! What a gain for our lives.

Translated from German

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Lebensqualität zurückbekommen

Wir hatten bereits eine SureFlap Katzenklappe in Gebrauch. Leider bevorzugen unsere zwei Katzen uns ihre Beute lebendig zu überbringen (Mäuse, Vögel, Fledermäuse, Regenwürmer).

In regnerischen Nächten mussten wir oft mehrmals Mäuse im Haus jagen. Es zehrte an unseren Nerven. Auch Vögel, die während wir in der Arbeit waren, das Haus vollk….. und dann doch noch gerupft wurden, gehören nun der Vergangenheit an.

Die Klappe war auf Lager und die Lieferung war innerhalb einer Woche bei uns. Bei Lieferung wurden ~35€ Zollgebühren fällig.
Bezahlung ging per Kreditkarte oder Vorab-Überweisung.

Installation war einfach, da die Klappe in die SureFlap-Öffnung passt. Jedoch benötigt die OnlyCat Strom. Eine Steckdose muss in Reichweite sein.

Unsere Klappe wurde erst nicht in der App als Gerät angezeigt. Der Support löste dieses Problem umgehend.

Inzwischen gibt es die App auch in „Deutsch“, was das Handling deutlich einfacher macht.

Eine Katze ging bereits nach 2 Tagen ein- und aus. Die 2. Katze brauchte zwei Wochen um sie zu nutzen.

Beute wurde von Anfang an erkannt! Was für ein Gewinn für unser Leben.
Rated 5 out of 5

Consumer – 20 August 2025 Trustpilot

Best purchase this year

Well after some stressful times with unwanted guests being brought home through our standard cat flap – we looked at the OnlyCat flap – well it has been a revelation – easy fitting and setting up of the app and monitoring our cats movements in and out.
It is truly a revolution in cat flap technology and must be the best product on the market.
For those that question the cost – please don’t worry – for it is a great product – extremely well made and you will not regret purchasing it.
The technology is so impressive and the quality of the video is outstanding.
Now we can have a good nights sleep without wondering what our little hunter is up to.
If you love your cat and want them to have the freedom they deserve – this is the perfect product for you.

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OnlyCat – Microchip Cat Flap with Prey Detection

Let cats be cats — and keep what they catch outside.

618 owner reviews4.88/5