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. Tuesday Reese – Google

    Only cat has changed our lives and the lives of our cats for the better. Well with the purchase. I’d recommend this product and this company to anyone.

  2. Thomas Hueber – Google

    We use it since two months and think it’s great, other cats keep out and we always see what’s happening. Expensive, but it’s worth it!
    Photo attached by Thomas Hueber

  3. Cat Welfare Luton – Google

    Love our OnlyCat cat flap, we were chasing up to 3 live mice around the house every single day and now none. It’s been the best purchase we’ve ever made and the support team sorted an initial teething issue very promptly.

  4. Dr Renee – Google

    I could not be more delighted with my Only cat flap. I have two cats, one has to stay in at the moment, they both stay in at night and not only can it differentiate the cats, I can remotely open and close it which is such a bonus… and if that wasn’t enough, it stops any kills entering the house! It’s brilliant. Worth every penny!

  5. Jane – Trustpilot

    Fantastic

    Fantastic! Has worked perfectly since we got it and stops stray cats and dead mice. It’s really fun looking and the videos in the morning to see what’s been going on over night.

  6. Pauline – Trustpilot

    This product has changed my life

    This product has changed my life. For the first time in years my cats no longer bring prey into the house. The relief is marvellous.

  7. Sam Sutton – Trustpilot

    LIFE CHANGING PRODUCT.

    LIFE CHANGING PRODUCT.

    Decent customer service & community.

  8. David Boyer – Trustpilot

    We both have our freedom!

    Fell in love with this cat. She is incredibly smart and no trouble in all ways but one. Dead animals and worse yet chasing live ones was taking a toll. Onlycat ended this hell. Almost 2 years that only the cat came through the door. The bond between my fuzzy friend and me continues to grow. All good no bad. Onlycat is worth every penny and if it wears out before my cat, I will buy another. She loves her freedom, now I have mine!!!

  9. Consumer – Trustpilot

    Love it

    Love it! It works perfectly!

  10. James Pike – Trustpilot

    Greatest thing I have bought we have…

    Greatest thing I have bought we have our life back and sleep !

  11. Karen England – Trustpilot

    Absolutely brilliant!

    Incredible product. It’s changed our lives- no more rats, mice, birds in the house every morning. And the support service from Onlycat is superb – very helpful & responsive. One of our best purchases ever! And the videos of attempted entry (denied!) with contraband are a constant source of entertainment!

  12. Michiel – Trustpilot

    Great product

    Great product, works well and easy to replace our existing Cat Flap.

  13. Gail Kane – Trustpilot

    The best piece of kit ever!To anybody thinking of buying this

    To anybody thinking of buying this, I say go for it.
    My cats fondness for bringing mice in both dead and alive was causing so much stress.
    The last straw was treading on a dead mouse in the middle of the night.
    Customer service is exemplary.
    If you want your cat to have freedom but hate the “presents” this is for you.
    The peace of mind justifies the cost.

  14. Cate – Trustpilot

    Genuinely life changing

    Genuinely life changing. The best money I have ever spent. No more dead rats, birds and squirrels on my living room carpet. No more mess! I can now just watch on the camera as he tries and fails to bring them in. Absolutely genius! Thank you!

  15. Alyson – Trustpilot

    The best money I've ever spent!

    This cat flap has genuinely changed our lives! That sounds dramatic, but one of our cats was bringing in live rats and mice nearly every night, sometimes twice a night. We have the flap over a year now and it has been the best money we’ve ever spent.
    There were a few teething issues at the very beginning but customer service were excellent at getting everything sorted for us. Since then, we’ve had relatively no issues.
    It is excellent at contraband detection. We’ve never had anything get in that shouldn’t have! My cats have gotten used to the fact that they can’t bring their prey in, so they don’t even try anymore. They do still hunt from time to time, but it has reduced dramatically. And when they do hunt, they leave their “gifts” in the back garden instead of in our kitchen.
    We were wary purchasing this cat flap because it is a lot of money. But I couldn’t recommend it highly enough. We can go to bed at night with peace of mind that we won’t have anything crawling around our house at night.
    It’s a lot of money, but worth every penny. We’ve recommended it to so many of our friends with cats.

  16. Sue Archer – Trustpilot

    This cat flap is the best !

    I just love this cat flap ! It keeps my cats outside when they’re bringing me presents . Much to their annoyance ! It also allows me to see when they’re coming and going , so if they only appear for an hour at 2am I know they’re alive and well just living a good outdoor life. I would totally recommend to anyone .

  17. Russell – Trustpilot

    Cat flat itself seems good but time…

    Cat flat itself seems good. The customer experience and accessories are my biggest concern. Misleading information from customer services prior to my wife purchasing led her to paying £110 on extras that we were assured make the catflap compatible with existing Sureflap Pet Door setup we currently have. After spending an additional £110 on two pieces of plastic that the website shows interlocks with existing tunnel extenders and verified by customer services, I was disappointed to then find out at installation point these do not interlink at all like the website shows in the pictures and per my previous communication with the sales team. I sent a follow up email where I was them told these are designed to be a snug fit that slots inside the tunnel extenders and was accompanied by a guide video which is nothing at all like the description on the website. They do not fit snug at all it is a loose fit inside the tunnel extenders which means when cats walk in and out the tunnel extenders move around and where they are glued they starting coming apart. Once I questioned this, no more replies. This is now no longer a suitable setup for me and I have had to now find my own means of making this Catflap fit for purpose.

    If you just want a Catflap in glass or door you should have no problems, if you have a wall tunnel for a Sureflap then do not believe the website or customer services as the extras are not suitable, the advice is not correct and is an expensive waste of money in my opinion

  18. Alex Munn – Trustpilot

    Great product, keeps presents out of your house!

    At first my wife and I weren’t sure about committing to the OnlyCat cat flap, as it did seem very expensive for a way to let our cat in and out.

    Now 6 months later, I have absolutely zero regrets!

    Every other day my cat is trying to bring some poor small creature in to my house. Yesterday it was a shrew. Today it was a rat.

    My cat also seems to have a knack for finding times when we’re just about to leave the house when to try this. Without a doubt this saved me from missing my daughter’s dance performance.

    It’s a great product, so glad I have it installed.

  19. sonia bland – Trustpilot

    Fantastic

    Fantastic, does just what it says !! Best buy for a long time

  20. Vujica – Trustpilot

    Highly recommend onlycat to anyone…

    Highly recommend onlycat to anyone doubting. Our cat brought prey home several nights a week. We tried zeromouse before buying onlycat, but that didn’t stop prey coming in a single time.

    Onlycat is amazing. Not a single prey has come in. Over 50 tries by our cat in the months that we have this flap. and every-single-one blocked. We have our pieceful sleep back!

    Delivery was Quick (to Netherlands), installing was easy and the app is truly phenomenal. If this one was to break I’d buy a new one immediately. It is a no brainer to me.

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