United Kingdom
One product, done properly, and an ecosystem behind it
SureFlap makes microchip flaps, and effectively nothing else. Four of them are reviewed here, from the plain battery-powered flap to the large Connect pet door.
The range is honestly organized. The differences between models are size, app connectivity and curfew — not a ladder of arbitrary features. That makes choosing straightforward in a way this niche rarely is: decide whether you need a big opening and whether you want a schedule, and the model follows.
The fitting parts are where the budget goes. Tunnel extenders are 50 mm each and proprietary; a masonry wall needs several. None of them come with the flap. Anyone comparing SureFlap against a cheaper flap should add the tunnel before comparing.
The collar tag is the quiet answer to the one real failure. Microchip doors depend on reading a chip that may have migrated. A tag costs a tenth of a new door and solves most of those cases — and SureFlap sells it rather than pretending the problem does not exist.
The four doors carry a single reference across all six of our markets, which is the best coverage anywhere on this site. Consumables are listed under both “SureFlap” and “Sure Petcare” depending on the item.
Dual scan · exit permissions per cat · 32 cats · 4 × AA, 12 months
A microchip cat door that scans in both directions, setting exit permission for each of up to 32 cats individually.
Best for: A multi-cat house where one cat must stay in and another must not
Microchip · 4 × AA · up to 12 months of battery · 4 locking modes
The plain SureFlap: it reads your cat’s chip, keeps the neighbor’s cat out, runs a year on four AA cells, and has no app at all. It is the one most households actually need.
Best for: One or two cats, a wooden door, and no interest in an app — which describes most homes.
≈ $135
Microchip or RFID tag · app monitoring · in-and-out logging
The standard-sized Connect flap: the same chip reading as the plain model, with the app that logs when your cat came and went.
Best for: Anyone who wants to know whether the cat is in or out from work — or to notice, in the log, that it has stopped going out.
Microchip or RFID tag · app · timed curfew · 178 × 170 mm (7.01 × 6.69 in) opening
The large Connect flap: app control, a programmable curfew, and an opening of 178 × 170 mm (7.01 × 6.69 in) for big cats and small dogs.
Best for: A household that wants the cat in before dark without standing at the door — and a cat too big for a standard flap.
≈ $260
9, 10 and 15-digit chips · 32 pets · 6 11/16 × 7 in · 4 × C, 12 months
A microchip pet door for large cats and small dogs, naming all three chip standards, with a collar tag supplied.
Best for: A large cat or a small dog, in a household that wants the chip standards stated
9, 10 and 15-digit chips · 32 pets · curfew · 4 × C, 12 months
A microchip pet door in white, naming all three chip standards, with a programmable curfew and a three-year warranty.
Best for: A white door frame, if the fourteen dollars and the tag do not matter
Large opening · microchip or RFID · app · timed curfew
The largest flap SureFlap makes with an app: chip reading, curfew, and an opening sized for big cats and small dogs. It is also the largest hole you will cut in a door here.
Best for: A small dog, or a household with both cats and a dog using the same door.
