OnlyCat - Microchip Cat Flap with Prey Detection
OnlyCat - Microchip Cat Flap with Prey Detection - Image 2
OnlyCat - Microchip Cat Flap with Prey Detection - Image 3
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OnlyCat – Microchip Cat Flap with Prey Detection

(618 customer reviews)

Price range: £ 275.00 through £ 499.00

Let cats in, keep mice out.

Microchip access in both directions, individual curfews and prey detection—all controlled through one app.

Fits a 165 × 172 mm opening, or a compatible circular glass cutout. Check fit details

Mounting
Where will it be fitted?
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Mounting Adaptor See all sizes and shapes →
Tunnel Extender – 50mm £ 10.00 Details ↗
Power cable

A 3 m power cable and adaptor are included. Mains power is required.

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USB-C Extension Cable — 1m £ 12.00 Details ↗
USB-C Extension Cable — 2m £ 18.00 Details ↗
USB-C Extension Cable — 5m £ 25.00 Details ↗
Optional extras
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Before you order

In stock · typically ships in 2–3 working days · secure payment

SKU: OC-1000 Category:

Wild outside. Calm inside.

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

  • Your cats, in and out. OnlyCat reads your cats’ microchips or compatible collar tags on entry and exit. Choose who may come in, who may go out and when, cat by cat.
  • A decision in the blink of an eye. OnlyCat checks for prey on the flap itself, typically in 0.2 seconds—even after dark.
  • See what happened. Review arrivals, departures and detected prey attempts, with videos, notifications and household sharing in one app.
  • Designed and built in the United Kingdom. Tested before it leaves us, with a two-year warranty and 30 days to try it at home. Read our returns and warranty policy.

“I feel so much better.”

  • “A device that’s given me my life back. Free to finally enjoy outings and holidays without worrying.”

    Fatima B.

  • “Our cat tried 16 times to bring a gift in. Waking up to see we avoided midnight carnage is just amazing.”

    Sarah C.

  • “I love my cat but I couldn’t cope with the presents. The flap did exactly what it was supposed to.”

    L Porquoi.

Rated 4.8 on Trustpilot by owners. Read owner reviews

618 owner reviews4.88/5

  1. Bruno Nussbaum – Google

    The cat flap is the best purchase I could have made. It works very reliably and has great features for training the cat and reading the microchip number.

    Furthermore, the software is constantly being improved. Support usually responds on the same business day.

    I love the product and have even integrated it into my home automation system.

    Translated from German by Google

    Show the original

    Die Klappe ist die beste Kaufentscheidung, die ich nur treffen konnte. Funktioniert sehr zuverlässig und hat tolle Funktionen, um die Katze anzugewöhnen und Chipnummer auszulesen.
    Zudem wird die Software stetig weiterentwickelt. Der Support Antwortet meistens am selben Arbeitstag.
    Ich liebe das Produkt und habe es sogar in meine Hausautimatisierung implementiert.

  2. Bernd K. – Google

    OnlyCat is fantastic! "Contraband" stays reliably outside – no more dead bodies in the house 🫶
    The app is constantly being improved and the service is on the ball (we had a faulty power adapter).

    We highly recommend it! 😀

    Translated from German by Google

    Show the original

    Die OnlyCat ist klasse! "Schmuggelware" bleibt zuverlässig draußen - keine Leichen mehr im Haus 🫶
    Die App wird stetig optimiert und der Service ist auf Zack (wir hatten ein defektes Netzteil).
    Von uns gibt es eine klare Kaufempfehlung!😀

  3. Fiona Whittaker – Google

    Can’t believe how successful this is. It’s stopped two mice and a bird already and only been using it for two weeks. Throughly recommend.

  4. Jaap Hogetoorn – Google

    Works really great
    Photo attached by Jaap Hogetoorn

  5. roel de haan – Google

    Works like a charm! Awesome.

  6. Lucian Lupsan – Google

    No more unwanted gifts, a real peace of mind.

  7. David Rudderham – Google

    Fab device, no contraband yet, only a matter of time but everything else has been easy to use and set up, pricey but worth it.

  8. A J – Google

    Grate device with high reliability to an avoid mouse in the house.

  9. Jacob Diazgranados – Google

    To say that this door has been a game changer for us would be an understatement. This is one of those products that comes once in a lifetime and completely changes everything. Our little hunting machine was bringing in all types of live animals including birds, rabbits, and rats here in Florida, but no, no more. The videos are awesome. The door is not glitchy, always functions as designed. My wife and I could not be any happier wirh this product.

  10. Lionel Bouton – Google

    TLDR: nice hardware and software with software receiving regular updates including fast bug-fixes and new functionalities.

    There’s no need for batteries, it plugs on a mains socket with a small battery inside to cover short grid failures for peace of mind. The RFID chip detection is reliable. The prey detection is quite good : not a single prey made it through and I might have had 2 false positives since I got the Onlycat ~9 months ago. The cat managed to get through by retrying after a short time.

    The integration with HomeAssistant has always been usable with some minor quirks. It is receiving regular updates and gets better with time.

    The policy system seems quite powerful under the hood using JSON to describe it for geeks who wants to tinker with it. That said the user interface is enough for almost all users wanting to setup simple common policies and not to see a single JSON content (I’m very familiar with JSON and although I could, I didn’t need to edit a policy for my needs).

  11. Justin Jones – Google

    Does exactly what it advertised. No glitches. We even learned our one cat was chipped that we didn’t know was chipped.

    We had a long tunnel situation we had to make some adaptations for, but it was easy to customize.

  12. David Martin – Google

    If you’re thinking about buying the OnlyCat catflap, don’t hesitate – it’s a game changer, and the team have been responsive and helpful the couple of times we’ve contacted them.

  13. Laura Chambers – Google

    Incredible piece of kit. Only installed yesterday (super quick and simple) and it has already performed brilliantly by intercepting a mouse delivery last night.

  14. S. K – Google

    I love having this cat door! It works reliable and already has stopped a few attempts to bring in something… It gives me a peace of mind and my cats love the freedom of coming and going as they please.

    My only suggestion for further improvement is to apply a overlay to the video when a mouse is detected… Being someone with a really bad phobia (reason i bought this product) , its hard/impossible for me to open the app and see pictures of them. Or maybe include it in the filter logic .

  15. Daniel Freiberg – Google

    Amazing product and by far the best support service i ever experience! it’s worth any buck! We feel save and oir cats are happy!

  16. James Lloyd – Google

    Amazing cat flap, between my 3 cats who bring presents home daily this has been a life saver. Any questions and small issues I had initially setting up the profiles for the cats was dealt with straight away Support staff have been fantastic. Yes would love to see the app it self have a face lift but imagine that will come in time.

  17. iCurZu – Google

    Great catflap, works as intended so far, has stopped several contrabands and other cats which is why I bought it.

    The app is developing over time and has improved during the time I have had it, have had some issues with not letting out my cat but a quick reboot fixes that.

    Keep up the good work, its a Great product!

  18. Rachel Bushnell – Google

    I have had my OnlyCat for nearly a year now and it is amazing. Easy to set up and program, and has blocked every attempt by my two cats to bring home prey. The video feature is very useful (and sometimes hilarious!). The app is user friendly and the team are quick to respond to any queries. Loving the new updates on the app and overall well worth the investment.

  19. James Faulkner – Google

    I was an early adopter of this amazing product, so nearly two years of faultless operation. I can honestly say this is one of the best tech purchases I have ever made and has proved to be totally reliable.
    Photo attached by James Faulkner

  20. Jane Pitson – Google

    my cat keeps bringing me unwanted gifts e.g mice and birds many of which are alive not much fun trying to catch them this cat flap which has only been installed a week has already prevented 2 gifts to me this is worth every penny I can now sleep in the knowledge that there no unwanted gifts in the middle of the night.
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