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

Ali – 2 March 2026 Google

OnlyCat is a game changer. Brilliantly engineered design from lovely people with amazing service. So glad I found this.
Rated 5 out of 5

Ruben Leten – 2 March 2026 Google

Since buying an OnlyCat, we sleep well knowing our cats can´t bring in anything anymore. Our cats brought in many live mice before, not anymore, the OnlyCat is working for 100% of the attempts they make smuggling in contraband. It´s so satisfying looking at the video´s of the attempts! Can 100% recommend. If buying from Belgium, like me, know there will be some extra customs costs.
Rated 5 out of 5

Ludwig Keyser – 2 March 2026 Google

The OnlyCat AI cat door has a 100% success rate in identifying prey and blocking our prolific hunter from bringing mice into the house. We were hoping for a reduction to get more sleep, but the door surpassed our expectations. Well done to the OnlyCat team.
Rated 5 out of 5

Oli Jenkins – 2 March 2026 Google

Purchased an OnlyCat cat flap to help reduce the number of unwanted presents brought into the house by our 4 cats and I’ll admit, I didn’t have too much hope that it would be as effective or awesome as it has turned out to be. Setup was a cinch and on the first night, it blocked 3 rodents from being brought in. An added bonus is being able to see out cats confused little faces when they try to enter the house and get access denied! Yes, it’s very expensive for a cat flap, but I honestly cannot recommend this higher to anyone who has cats who are prolific hunters. Truly amazing.
Rated 5 out of 5

Samantha Burt – 2 March 2026 Google

Im always a bit dubious when something sounds too good to be true – so far Onlycat does exactly what it is supposed to. My cats can not even bring a leaf or a feather into the house let alone a bird or a mouse. Im sooooo happy its a life changer
Rated 1 out of 5

Jessica Hargreaves – 2 March 2026 Google

*Edit to address the response* – to the question on the survey about whether I had clocked there was mains power required, I replied “I didn’t know this but I can make it work” per your email record to me of the survey response. I did try to make it work. I did also email customer support for advice on the wiring and didn’t receive any suggestions of how to address the issue. The cable supplied is white – there really are no pictures showing this on the website, although I see there is now a link to some customer photos. It’s genuinely not clear. I can also see that other customers have raised this point.

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This product requires a permanent, wired power source. That means it is not suitable for installation in doors (a typical place to install a cat flap). This is not at all clear from the website. For example, none of the pictures show a cat flap with a wire coming out the bottom of the unit. Ours was installed in the back door and the wire inevitably broke in the connection to the cat flap itself and is now unusable. If the need for a permanent wired power connection had been clear on the website, I would not have bought this product. It’s expensive and has, unfortunately, been a huge waste of money in my case.
Rated 5 out of 5

Andrea Litzenberg – 2 March 2026 Google

Amazing product! I have wanted something like this for the last few years. My cat, Mack started bringing in snakes, mice and bunnies because I was letting him outside and leaving the door cracked open for him. I learned my lesson and started keeping the door closed. But after he got a taste for hunting he was driving me crazy with going in and out. Sometimes not coming home before I went to bed when the weather was warm. I worried about him being locked outside all night and my attempts to keep him inside failed as he is fast and sneaky. I also knew a pet flap would just allow him to continue bringing me gifts. So, I was super excited to learn about OnlyCat. I did my research before purchase due to the price. It was worth every penny! It’s easy to install and most importantly it works! Support is always available with a quick response through a chat with a real person. Upon purchase I was invited to a Facebook group with others who share experiences and ideas. Mack was comfortable using the door within less than a week and last night was his first attempt to bring in a mouse. The door locked and alerted me. It was fantastic. The opening is small so it may be a struggle for bigger cats. Mack is a long cat. He struggled getting his hind legs through because he has to leave them straight and pull his back legs through with his upper body strength when exiting the house. Coming into the house the entry is a little wider. I highly recommend OnlyCat for anyone who has the same issues I had. My other cat stays inside but I don’t have to worry about her venturing out because the door only opens for Mack since he’s wearing the microchip on his collar.
Rated 5 out of 5

Zanner Rudi Scheef Rudi – 1 March 2026 Trustpilot

The best flap there is.

The best flap there is.
The price is justified.
Happy to recommend it.
Regards, Rudi

Translated from German

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Beste Klappe die es gibt.

Beste Klappe die es gibt.
Preis ist gerechtfertigt.
Gerne zur Weiterempfehlung.
Grüße Rudi
Rated 5 out of 5

Alan Catt – 1 March 2026 Trustpilot

Proactive, helpful, and excellent customer service

We’ve had a problem with one of our cats who is a prolific ‘mouser’, sometimes several per day

I saw this on Dragons Den, and I thought I’d try anything that prevented me chasing critters round the house at all hours of the day & night

The problem: I needed to marry this standard size cat flap on to the tunnel of a Sure Flap large pet door, and as suspected, it was a terrible match when it arrived

The solution: when I explained the problem to the company, they made me an adapter, 3D printed so it matched perfectly

Look, the product is pricey, but it contains new tech, and if it performs how I hope it will, I’ll forget the cost quite quickly

I can only say, that emails were answered, and Ross spent a lot of time of the phone with me to make this work, so good luck to them
Rated 5 out of 5

Adam Wilson – 28 February 2026 Trustpilot

Cutting edge technology; outstanding customer experience

While we had to exercise a lot of patience after our initial order, we have been overwhelmingly impressed with how well OnlyCat works. Not only that, but the company is very engaged with their customers, both directly and via their active Facebook group. Topping all this off is the great feeling of supporting a British company.
Rated 5 out of 5

Murray Kelso – 26 February 2026 Trustpilot

Superb customer support

Not only is this a fantastic cat flap which works exactly as intended, the after sales support is superb:
My not-very-bright cat has, against all odds, managed to find a loophole in the contraband protocol by leaving her rodent kills in the entrance tunnel then breezing through the flap with a ‘clear mouth’, only to turn around and pretend to exit, grabbing her victim from the tunnel and bringing it in.
Within five minutes of my emergency email to support at 10.30pm (UK time) I had a reply offering to remotely set up a lockout period after contraband is detected, and was given the choice of how long in minutes I wanted it set to. This was done very quickly and I’m now content that my cat will get bored of looking at her succulent kills waiting for her in the tunnel and take them away to dine on them somewhere that isn’t here.
100% recommended 👍
Rated 5 out of 5

Irene Kunz – 26 February 2026 Trustpilot

Cat flap

Fast delivery, works flawlessly. The product is worth every Rappen!

Translated from German

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Katzenklappe

Schnelle Lieferung, funktioniert einwandfrei. Das Produkt ist jeden Rappen wert!
Rated 5 out of 5

paul fannon – 21 February 2026 Trustpilot

game changer

game changer! This lets us go on holiday and the cat is fine. We can set it so his chip is the only one allowed in. It auto scans the chip so setup is very intuitive in the app. But essentially, it always picks up if he has a mouse and blocks entry. It’s not a cheap item but it works!! It really really just works. You get live video event too. Absolutely do get it
Rated 5 out of 5

Bridge Beauty – 16 February 2026 Trustpilot

Excellent cat flap!!!!!

Excellent cat flap!!!!!! Detects everything from rats, mice & elastic bands that my cats try to bring in lol! One cats microchip has slipped so it doesn’t pick him up so easily but we turned off the microchip detection and it’s now fine. No other cats try and get in so it’s no bother! Wouldn’t be without this cat flap and would highly recommend it for anyone with a murderous cat 🐈‍⬛ 🐭😂
Rated 5 out of 5

Joakim Byström – 15 February 2026 Trustpilot

Works perfect

Works perfect, blocked 5 mouse , never misses. Also blocked a bird and a big rat twice to enter the cat door.
Rated 5 out of 5

Andy L – 13 February 2026 Trustpilot

Brilliant cat flap....no more standing on a chair!

We previously had a microchip cat flap, that worked well….but we had issues with our cat bringing in presents. And often we would either find her ‘playing’ with what she bought in or find the scene of a horror movie with blood and bits everywhere. With this in mind it made it hard to let our cat out when we are away also..and lastly I was fed up of my wife standing on a chair (she not a fan of mice!)

I found this on a crowdfunding site and whilst it was expensive, I felt it would provide a long term benefit to all.

Since it arrived I have been extremely impressed with it.

The detection is really good, and we haven’t had one issue of not detecting…..

The app and notifications are good, and it provides a video of your cat entering and leaving.

With how well it works, it gives us the confidence to let the cat come and go even when we are not at home, which I’m sure the cat appreciates, as it’s likes going out exploring.
Rated 5 out of 5

Niamh Kinsella – 12 February 2026 Trustpilot

Have had it for nearly a year now and…

Have had it for nearly a year now and has worked flawlessly so far, always catches when my cats bring prey in, it’s an amazing product.
Rated 5 out of 5

Lea W – 12 February 2026 Trustpilot

No more unwanted gifts

This cat flap does what it claims. Gifts and random cats are kept out. Only your cat can get in. Any issues are dealt with swiftly and their customer service is excellent. One of the best companies I have ever dealt with. Thank you Onlycat for designing the cat flap I needed!
Rated 5 out of 5

Winnie – 10 February 2026 Trustpilot

Love love love this catflap

Love love love this catflap. It has saved me from meny mice and birds inside my House. It works very Well. And on new years eve I could close the flap so my kitties didn’t get hurt from fireworks and rude drunk people.
Rated 5 out of 5

Susanne – 9 February 2026 Trustpilot

Fantastic

Fantastic! Only Cat works reliably and smoothly. In winter it's a bit of a squeeze for our chubby Frieda - her coat is pretty thick at that time of year too 😉 We should maybe have ordered the larger version here. Once she's got her bikini figure back in summer it works better. For our slim Wilma it works fine any time.
A really good buy in any case and a huge relief, worth every euro!

Translated from German

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Fantastisch

Fantastisch! Only Cat funktioniert zuverlässig und reibungslos. Im Winter ein bisschen knapp für unsere dicke Frieda, ihr Fell ist da halt auch recht dicht 😉 Eventuell hätten wir hier die größere Variante bestellen sollen. Wenn sie im Sommer ihre Bikinifugur hat funktioniert das besser. Für unsere schlanke Wilma klappt das jederzeit gut.
Auf jeden Fall ein richtig guter Kauf und große Erleichterung, jeden Euro wert!

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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