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
OnlyCat - Microchip Cat Flap with Prey Detection - Image 4

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. Oksana Rasskazova – Trustpilot

    Saved a lot of stress

    Super accurate! We have 2 cats and everything stays outside! Detection is super, we can customise it when they go outside and we absolutely love this product. Saved a lot of stress!

  2. Alix – Trustpilot

    My cat thinks he’s in the Serengeti…

    My cat thinks he’s in the Serengeti and is out hunting all the time. This flap has been a complete game changer for us. No prey has got through so far and, in fact, he’s even stopped trying to drag creatures in now as no ‘contraband’ has been detected on the camera for months. We were nervous about spending such a lot of money on a cat flap, but it is honestly been worth every penny. If you’re hesitant, go for it! It’s a fantastic product.

  3. Stuart Newman – Trustpilot

    A truly amazing cat flap

    A truly amazing cat flap! The company are fantastic to deal with and it took away the stress and anxiety each night of what we were going to wake up to! I wouldn’t hesitate in recommending this product to anybody with cats.

  4. James Tailford – Trustpilot

    Amazing for what it is

    Amazing for what it is. But agree. Cost us high.

  5. flo – Trustpilot

    Brilliant

    OnlyCat has created a very innovative product that allowed me to have peace of mind and my cats absolute freedom. It works very reliably and the app gets new features now and then. They even support integration into home assistant through the cloud although I will be even happier if they manage to add a local access. On top of that interactions with the customer service are a pleasure. They are extremely quick in responding and very helpful.

  6. Aksel Schei Hansen – Trustpilot

    OnlyCat saves our night's sleep

    The cat flap has meant that the cat has not been allowed in with prey since it was installed. It is expensive, but in our opinion it has already paid for itself, since the night-time mouse hunts have stopped completely. We needed a little help getting it going; support replied quickly and helpfully. The product and the company are recommended!

    Translated from Norwegian

    Show the original

    OnlyCat redder nattesøvnen

    Katteluka har gjort at katten ikke har hatt adgang med bytte siden den ble installert. Den er dyr, men etter vår mening har den allerede betalt seg, siden det er helt slutt på nattlige musejakter. Trengte litt hjelp med å sette den i gang, support svarte raskt og hjelpsomt. Produktet og firmaet anbefales!

  7. H.J.Rauh – Trustpilot

    Great, apart from a few compromises

    Fantastic cat flap! What a relief for our lives. Technically it works flawlessly and has detected every prey animal so far.
    Only three things to criticise:
    1) The opening of the flap is (slightly) too small. Compared with the previous flap (from PetSafe), my normal-sized tomcats have more trouble getting through and one of them still refuses to pass through at all. I could not position the flap higher, as I had to fit it into the existing opening in the cellar door.
    2) Fitting it into the thick wooden door (with a tunnel extension) was quite difficult, because the fixing screws (which were too short anyway) have to be threaded from the outside into the small holes of the inner panel. That makes sense when fitting into a glass door, but with a thick door or a wall it would be better if the outer part and inner part could be screwed directly into the wood or the wall from their respective sides.
    3) "Thanks" to Brexit, on top of the (justifiably) high purchase price and shipping costs you also have to pay EU customs duty!

    Translated from German

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    Großartig - bis auf ein paar Abstriche

    Phantastische Katzenklappe! Welche Erleichterung für unser Leben. Sie funktioniert technisch einwandfrei und erkennt bisher alle Beutetiere.
    Nur drei Dinge sind zu bemängeln:
    1) Die Öffnung der Klappe ist (etwas) zu klein. Im Vergleich zur vorigen Klappe (von PetSafe) kommen meine normal großen Kater schwerer durch und einer verweigert bis jetzt überhaupt den Durchgang. Ich konnte die Klappe nicht höher positionieren, da ich sie in die bereits vorhandene Öffnung der Kellertüre einbauen musste.
    2) Der Einbau in die dicke Holztüre (mit Tunnelverlängerung) war ziemlich schwierig, da die Befestigungsschrauben (die sowieso zu kurz waren) von der Außenseite in die kleinen Löcher der Innenverkleidung eingefädelt werden müssen. Beim Einbau in eine Glastüre macht das Sinn, aber bei einer dicken Türe oder Mauer wäre es besser, wenn man den Außenteil und den Innenteil von der jeweiligen Seite aus direkt im Holz oder der Mauer anschrauben könnte.
    3) "Dank" Brexit muss man noch zu den (gerechtfertigt) hohen Anschaffungskosten und Versandkosten einen EU-Zoll bezahlen!

  8. Sean – Trustpilot

    Five stars from us.

    We’ve had our OnlyCat cat flap for a couple years now, I guess we were early adopters. We absolutely love it and thanks to updates to the device and app, it just keeps getting better.
    One of our cats is a constant hunter and she loved to bring animals in the house.
    The OnlyCat flap has stopped that. Thank goodness! The app is customizable so we have our door configured for several situations. Some examples are what we call IN-ONLY, Curfew and Quarantine. We can allow them to come inside only but prevent any of them leaving again or in the case of Quarantine set it so only one is allowed or barred as the case may be. You also set for scheduled events (our curfew setting). How you set it is up to you and OnlyCat engineers will help if you struggle with the setup.
    We absolutely love our flap and will not be without one now. It’s expensive but worth it in our opinion. Five stars.

  9. Dr M – Trustpilot

    Stops unwanted gifts

    Our multi cat household means a lot of unwanted gifts. No more. It’s not cheap, but does what it is supposed to. The app allows specific rules for individual cats. You can see the toing and froing of daily cat life. It’s useful to see who is in or out at a glance. If you’re away from home you can monitor from afar. In summary, impressive.

  10. The IT guy. – Trustpilot

    More than paid for itself.

    We must’ve spent many times more than the price of OnlyCat in repairs caused by rodents brought in to the house by our two cats.
    Since installing, three attempt have been made to bring in mice or larger rodents, all thwarted. Paid for itself many times over.

  11. SB – Trustpilot

    Amazing product

    Amazing product my cats cannot get in the house with anything, not a leaf or a feather let alone an animal. Also customer service is excellent my queries answered very quickly and helpfully . Love it

  12. Sophie Tanith Davison – Trustpilot

    Genuinely works

    Genuinely works. Saves us a lot of hassle and worth the time to teach them how to use a cat flap.

  13. Debbie Robus – Trustpilot

    A really good cat flap

    A really good cat flap. Fitted perfectly into my old Sureflap space. Connected to cats chip immediately and without stress to the cat. It’s already prevented contraband so I’m really happy with it.
    Customer service prompt and helpful as initially had a problem getting the flap linked to the app but all sorted.

  14. J S – Trustpilot

    Wonderful product

    I have had my only Cat for not even a month, it already blocked attempts to bring in 2 mice and 1 pidgeon, the piece of mind this product brought me is worth every penny, my only regret is not buying one earlier.

  15. Rene Westerveld – Trustpilot

    Best buy ever

    Best buy ever. Works all the time. Perfect. No more mouses. Everybody happy.

  16. L Parker – Trustpilot

    Transformed our lives

    Transformed our lives. My cats used to bring presents almost every night, usually alive so we’d spend hours chasing mice around the house in the middle of the night. But no more, my furry murderers have been foiled!

  17. WG liefhebber – Trustpilot

    the product works VERY good

    the product works VERY good, app etc works good, unlocking and recognizing too. maybe check if rain cant get inside(had to use some Kit to seal it). i recommend this product.

    Only downside: the price is way to high. So maybe they sell them all but they must look into that.

  18. Frank Draeger – Trustpilot

    Excellent product and team

    Excellent product provided by an excellent team. Support is very responsive, friendly and competent.

  19. Consumer – Trustpilot

    Superb product

    Superb product. One of the most amusing things we’ve seen in recent years is the shocked facial expression of each of our 3 cats when prevented from bringing “contraband” through the cat flap. Comedy gold. We’ve now had this 2 months and had a 100% success rate on blocking the little gits. Before that we got something once a day…

  20. Mr Bevan – Trustpilot

    Best electronic cat flap

    The best bit of kit I’ve ever purchased! Already stopped my two from bringing in a mouse so worth its money already.
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