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. Robert Arcon – Google

    The OnlyCat cat flap is by far one of the best things I’ve purchased. I’m so happy that I trusted the reviews I read. Now I can keep tack of our two cats better than before and we do not get any prey 🐭 delivered to us anymore. …

  2. Lisa Coppen – Google

    This is the best thing I think I’ve ever bought!
    We have a cat who is a prolific hunter, we were getting mice, birds even a squirrel brought into the house. The final straw was the mouse on the bed in the middle of the night!
    The cat flap was easy to install and the cat didn’t notice we had changed it. In the first week the cat tried multiple times to bring prey in but as he wasn’t allowed he soon stopped trying. We are a few years in now and he doesn’t even try to bring things in now he just leaves them on the lawn!
    It has made being in the house much more relaxing, we don’t come down in the morning worried about what creatures are running around. It really has made life so much easier.
    Thank you OnlyCat.
    Ps the customer service is top notch

  3. Petr Sobotka – Google

    Amazing

  4. Liam Caffrey – Google

    Love it. Worth its weight in gold!!

  5. Hassani Sabbah – Google

    Best cat flap on the market. No prey any longer!!!

  6. Greg B – Google

    This is one of the best investments you can make, if rodents in the residence are frustrating you.
    Happy to spend the money and sleep at night. Costly machine, but worth every penny.

  7. Mark Kininmont – Google

    So, after installing the OnlyCat cat flap, in the first night it detected two attempted entries with prey! Then a little while later when our cat came back without prey the cat flap let her in! It really does work well………….
    Photo attached by Mark Kininmont

  8. Lisa Nichols – Google

    This cat flap is the best purchase ever. No more 2am mouse massacres. Whilst the cat flap seems expensive, if you’re having trouble with mice then this is a brilliant investment. The cat flap detects contraband in micro seconds. Not to mention the cute snapshots you get of your furry friends when they go in and out of your house. No more mice and a peaceful, uninterrupted sleep. Thanks OnlyCat, couldn’t recommend enough!

  9. Penny Tayler – Google

    My beautiful little girl has it all now! She can come and go when she likes and doesn’t bring in surprise visitors to her Mummies great relief. She brought in a baby snake once…… I am very happy with OnlyCat and their support team.
    Photo attached by Penny Tayler

  10. Danielle Davies – Google

    Has stopped the killer cat bringing in ‘gifts’. Day one of installation and it had already paid for itself. Also stops the other cat bringing in inanimate objects such as crisp packets and leaves! It is worth it.
    Photo attached by Danielle Davies

  11. dawn goodwin – Google

    I know it’s disturbing to see so much dead wildlife but OnlyCat works so well it has actually curbed my cats hunting instinct. Because they can’t bring their prey inside they seem to have lost interest in the activity altogether. Before, my cats were wearing giant custom bells on their collar but nothing worked. I was chasing prey all over the house and often finding them dead – so stressful. This product changed my life and saved the lives of countless critters – worth every penny
    Photo attached by dawn goodwinPhoto attached by dawn goodwinPhoto attached by dawn goodwin

  12. Andrew Delamare – Google

    I have been using this product for just over a year. It’s been really good. My cat likes to collect animals from the garden, bring them in and use them as cat toys in the house at all times of the night. This isn’t great for the house as injured animals sadly make a mess everywhere. However, with OnlyCat she has been taught to leave them in the garden! It works off her id tag so it also stops other cats coming in. It’s a great product and I stand by its effectiveness
    Photo attached by Andrew Delamare

  13. Michelle A – Google

    Delivery took a while but great customer service when emailed. Quite simple to set up and get the app going. This flap has already saved us from my cat’s catches several times. Has relieved the anxiety I used to feel in the mornings at what mess I was going to find.

  14. Katrina Te Punga – Google

    Great product. So good at detecting things in the cats mouth and not letting them in. Great responsive support if you need help or to suggest changes. Stable app and updates seamless. They ship and support worldwide

  15. Jody Turner – Trustpilot

    I was plagued with rats being brought in

    I was plagued with rats being brought in alive and dropped in the flat to run off and hide. Quite the nightmare and very hard to retrieve them. I had been waiting for this type of flap for a long time. This has quite literally changed my life. I can sit and feel comfortable in my home without the fear of my cats bringing something in. It’s fantastic and completely reliable and 100% works.

  16. Phillip Wardle – Trustpilot

    I have to give this 5 stars even though…

    I have to give this 5 stars even though I had to return it. I did so because my cat just wouldn’t use the flap. I tried everything that is recommended by vets and online sources, he’s just a very nervous and easily frightened cat. Super easy to install and very sturdy. Setting up was easy too and the App is easy to use. I had to give it a go and very disappointed it didn’t work for us, as I’m back to chasing my gifts around the house.

  17. RJ Cambridge – Trustpilot

    This cat flap is excellent

    This cat flap is the best money I’ve ever spent. It gives me complete peace of mind.
    There was one “contraband” incident when I first installed it due to the length of time the cat flap remained open after exit. I messaged the guys and they got back to me within the hour and remedied it by shortening the time cat-flap stayed open during exit. Nothing has been allowed in since!
    My cat is now learning that if she tries, unsuccessfully, to come in with contraband then she won’t bother again!
    I can’t recommend this product or customer service highly enough.
    Excellent cat flap, you won’t regret it.

  18. Yolanda Bertolaso – Trustpilot

    a great device

    a great device, very easy and clear to use in the app, offers many options and there is great, friendly and competent support finding solutions even in more difficult problems.
    No unwanted visitors us anymore🐀🙏🏻🐾⭐️

  19. Gianluca – Trustpilot

    The best £400 we ever spent!

    The best cat door ever!
    Our cats used to bring in the house live mouse and birds even day! We didn’t know what to do anymore, until we discovered Only Cat !!!

  20. Gavin Williams – Trustpilot

    An amazing product and so easy to fit

    An amazing product and so easy to fit, we live on a disused farm and we were receiving 5/6 dead animals a day courtesy of our cat, now that’s all stopped and the cat learned very quickly that its entry was blocked with CONTRABAND 😂👍🏻
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