ZeroMOUSE vs OnlyCat
Side-by-side
| Feature | ZeroMOUSE | OnlyCat |
|---|---|---|
| What you buy | Add-on sensor for your existing flap (or new AI flap) | Complete smart cat flap |
| Stops prey coming in | Yes — blocks the flap when prey is seen | Yes — keeps the flap locked when prey is seen |
| How it recognises your cat | Your flap's microchip reader (new flap: face recognition) | Microchip reading plus camera |
| Power | Mains USB-C — needs a nearby socket | Rechargeable battery |
| Needs Wi-Fi | Yes, for alerts and updates | For alerts and updates |
| Photo alerts in an app | Yes | Yes |
| Typical price (checked Nov 2026) | About £209 for the 2.0 add-on on Amazon UK | About £400 direct |
| Fitting | Add-on is DIY; new flap needs a cut-out | Needs a cut-out like any flap |
Choose ZeroMOUSE if…
- You already own a compatible microchip flap
- There's a plug socket near the door
- You want the lowest-cost route to prey detection
Choose OnlyCat if…
- You don't have a microchip flap yet
- There's no socket near the door
- You want an all-in-one premium flap with a battery
Want either one fitted?
uPVC doors from £60, glass from £280 with a new toughened panel.
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