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

Mark G Zarquain – 17 April 2026 Trustpilot

Worth it, honestly.

We love our cats, but we definitely didn’t love catching prey at 3am or finding prey parts scattered around the house.

As winter came to an end and the cats starting to bring ‘friends’ home again, we looked for a solution and found this cat flap advertised, we were unsure how realistic the claims were but decided to give it a go, it was worth a shot at least.

We’re so glad we did, we installed the cat flap about a month ago and it’s detected all our cats attempts to bring home prey, leading to a much calmer home. I can’t tell you how happy we are with it.

The app is great too, very clean and easy to use, and you can view the videos of your cats entering and leaving, as a bonus we’ve also learned about our cats activity, what times they like to go in and out etc.

Just brilliant, honestly, so worth it.
Rated 2 out of 5

Lyn Scott – 16 April 2026 Trustpilot

Extortionate restocking fee

Extortionate restocking fee
I ordered the cat flap and unfortunately because whoever installed the current one had cemented it in I couldn’t fit the new one. I returned the cat flap and Emma in customer service was very helpful sending me the details to return. I didn’t expect to be charged a £35 restocking fee
Yes it’s on their website and I didn’t see it so I understand that technically it’s my fault but I have never come across this before and feel it’s extremely excessive.
So my advice make sure it can definitely be fitted beforehand
They even sent you a questionnaire before they post out the cat flap and I put I was worried there wouldn’t be enough room for the cable underneath the flap so they popped a note in with the cat flap and I think a different connection. They could have replied to my email pointing out the restocking fee then I probably would have cancelled my order.
Emma contacted me after I posted this review and said that as the cat flap had not been used I would get a full refund so the additional money was sent. It’s a shame it took the posting of this to get it sorted out
Rated 5 out of 5

Sue Frencham – 14 April 2026 Trustpilot

Well worth the money

I don’t normally leave comments but I had to this time. The catflatp was delivered promptly. Our cats needed some encouragement to use it as they didn’t like the light and the click it made when scanning but less than a week later they are using it as normal. It has stopped all prey coming into the house which is a great relief. Expensive but well worth the money.
Rated 5 out of 5

Naomi Richardson – 9 April 2026 Trustpilot

This device works!!

Last night was the 1st time the cat tried to bring in a rodent friend. At 1:20am she tried for over 60 seconds. This catflap is worth every penny and I recommend it to every cat owner. I hope one day it works for small dogs 2.
Rated 5 out of 5

Hilary – 9 April 2026 Trustpilot

I love my OnlyCat cat flap

I love my OnlyCat cat flap for 3 reasons. First, exactly as advertised and why I invested, it has successfully prevented my cat from bringing prey in to the house. I don’t have any more worries about the still alive or not quite dead rodents that crawl off in to a corner to hide/die. That alone is worth every penny.
Second, I can control and then monitor the activity of my cat. He is young and still finding his feet so I have set an overnight curfew. I like knowing that he is at home and I like watching the video to check that he is safely inside. During curfew he often tries to leave but the lock doesn’t click open so there is no audible cue that he can go out. I’m hoping he will learn to stop trying because I get a slightly confusing “cleared for exit” despite the door remaining shut. Maybe if the message could be “curfew exit denied” or something similar then it would be clearer but that’s my only niggle. The OnlyCat flap is doing its job perfectly and that’s all that matters to me.
Third, the cat flap slotted straight in to the space vacated by my previous sureflap which was a great result.
I love it and I wouldn’t hesitate to recommend it plus you get some pretty cute videos to boot!
Rated 5 out of 5

Beverley – 9 April 2026 Trustpilot

This cat flap is AMAZING!

This cat flap is AMAZING!! It took just one day for our two cats to get used to using, even with the different lights around the mounting which allow the video function. So far all mice denied entry! The contraband detection alarm on the app is great, you are alerted immediately to the cat trying to bring something in. Video footage also good, and very useful to keep a track of your cats! That’s without the comical footage of the cats, my son shows them to eagerly waiting work colleagues, as I can share them, just brilliant! A big thank you to Tomas and Ross at OnlyCat for being at the other end of the customer support button! This is life changing for us, fabulous product.
Murray Kelso – 9 April 2026 Email

As an early Kickstarter backer of OnlyCat, I have been amazed at how well your cat flap works, and its AI detection is surprisingly-powerful.
Rated 5 out of 5

MRS V BOWDITCH – 3 April 2026 Trustpilot

Bloody brilliant

Bloody brilliant! If I could give it a 100 stars I would! I brought this prey cat only flap as my cats kept bring in live mice to my home. It was a living nightmare trying to catch them! I’d had enough so I done some research on prey detection cat flaps. I was concerned about the price of these cat flaps but I have to say its the best £500 I’ve spent! Does exactly what it says on the tin! Easy to fit and set up and I’m a techno thickie! And customer support is awesome they sort out any issues. I had concerns that the flap wasn’t closing Fast enough after my cats entered the house so I email customer support they emailed back and adjusted the locking time remotely so now everything is perfect. Thank you so much to these guys Top class service. Thank you, thank you, thank you!!
I would 200% recommend this prey detection cat flap its just brilliant!
Rated 5 out of 5

Mariane Colmant – 2 April 2026 Google

Excellent prey detector; my cat got stuck with a lizard in its mouth.

Translated from French by Google

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Très bon capteur de proies mon chat a ete bloqué avec un lézard dans la gueule
Rated 5 out of 5

Michaela Bauer – 2 April 2026 Google

Works perfectly! No more stray cats, mice, or snakes. 5 stars and a thousand thanks!!!

Translated from German by Google

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Funktioniert perfekt! Keine fremden Katzen, keine Mäuse, keine Schlangen mehr. 5 Sterne und tausendmal Dankeschön!!!
Rated 5 out of 5

Steffen Seiler – 2 April 2026 Google

The OnlyCat cat flap is a huge relief for us, as we used to be woken up every morning at 5 a.m. by our cats wanting to go out, then come back in, and thus keeping us from sleeping. After a few days of initial confusion, they both figured out how it worked. One uses it regularly, and the other still gets excited when we open the door, but also knows how to use it in an emergency.

A few days ago, we put it to the test: someone brought home a mouse – and lo and behold, the flap wouldn't open… After a few tries, we placed the mouse down, and then the flap opened! It's worked perfectly several times now. We're thrilled!

Translated from German by Google

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Die OnlyCat Katzenklappe ist für uns eine Ruesen-Erleichterung, da wir bisher immer um 5 Uhr morgens von unseren Katzen geweckt wurden, weil sie raus wollten, wieder rein wollten und uns so vom schlafen abgehalten haben. Nach einigen Tagen Verwunderung haben beide das System verstanden. Eine nutzt sie regelmäßig, die andere freut sich immer noch, wenn wir die Tür öffnen, weiß aber im Ernstfall auch, wie es geht.

Vor ein paar Tagen kam dann der Testfall: Mäusebeute wurde mitgebracht- und siehe da, die Klappe ging nicht auf… ein paar mal probiert, dann Maus abgelegt und schon ging die Klappe auf! Hat jetzt mehrfach super funktioniert. Wir sind begeistert!
Rated 5 out of 5

Erwin van Woudenberg – 2 April 2026 Google

I am really impressed. Next to functionality, which is really good, it is fun to see and service is perfect.
Rated 5 out of 5

Michael Köhler – 2 April 2026 Google

wonderful product. it protected us already 5x times in one week
Rated 5 out of 5

Elisabeth “Lise” Van Passel – 2 April 2026 Google

We love our cat door with face recognition. We feel reassured that she cant bring in any (living or dead) gifts , like mice or birds😅 . …
Rated 5 out of 5

Paula Rainbird – 2 April 2026 Google

Brilliant product , it’s saved my sanity !!
I’m no longer worried about unwanted gifts being brought in …..,, worth every penny
Rated 5 out of 5

Bridget Wann – 2 April 2026 Google

The OnlyCat saved our sleep! It works exceptionally well and has kept out every mouse and gopher our sweet cat has tried to share with us since installing it. It has also blocked a feral cat and many raccoons! The staff at OnlyCat are wonderfully attentive as well when we had to troubleshoot connection issues. Thank you for giving us peace of mind and good sleep again OnlyCat!
Rated 5 out of 5

Jacqueline Odiatu – 2 April 2026 Google

Excellent. We have had this cat flap for a number of months and we have had no unexpected visitors. When out cat tried to bring in a uninvited visitor (rat) 🐀. He was locked out. This has been an excellent investment. …
Rated 5 out of 5

Sophie – 2 April 2026 Google

Life changing….if you’re thinking about buying OnlyCat, just do it!! Their customer service is 10/10. I’ve not had one incident in nearly a year, faultless every time.
Rated 5 out of 5

Elizabeth Geurin – 2 April 2026 Google

This thing is awesome. Its accuracy is remarkable. Both times that our cat tried to bring contraband inside (ie a mouse and a lizard), the cat door locked and denied her access. This is definitely worth the purchase.
Rated 5 out of 5

Andrew Bartlett – 2 April 2026 Google

OnlyCat works as advertised and has given us peace of mind. No more unwelcome guests! Our cat learned to use it very quickly and we can see he knows that when he comes without any “contraband” he can get in easily. Excellent customer service and an easy to use app on the phone makes this a product we’re glad we bought. Highly recommended.

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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