Comparison

ZeroMOUSE™ vs OnlyCat

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ZeroMOUSE™

This AI-powered add-on prevents your cat from bringing prey inside by blocking the RFID cat flap. It's a simple upgrade to your existing flap, avoiding the need for a new purchase. Enjoy a cleaner home without replacing your current cat door.

Highlights
  • AI-powered prey detection
  • Blocks RFID cat flap
  • Add-on for existing flaps
  • Prevents prey entry
  • Easy installation
Features
Read full description

ZeroMOUSE™ is an add-on for your modern RFID cat flap. It uses AI to detect when your cat tries to bring home prey and blocks the flap from opening. Since it is an add-on, you do not have to buy and install a new cat flap, but may simply continue using the one you already have.

About

OnlyCat

This advanced cat flap uses AI to detect and prevent prey from entering your home. It offers selective access control for each pet, real-time notifications, and allows for timed curfews. Manage multiple cats and track their activities with personalized profiles and video highlights.

Highlights
  • AI prey detection
  • Selective access control
  • Smart notifications
  • Multi-cat management
  • Timed curfews
  • Activity tracking
  • Personalized cat profiles
Features
Read full description

Wild outside. Calm inside. Your cat comes and goes. OnlyCat watches the door — you don't have to. The flap sees every arrival, recognises every cat, and when someone tries to bring home a "gift" — a mouse, a bird, whatever tried its luck — the door quietly says no. You sleep through the night. You leave the house. The hallway stays clean. And every morning you can see exactly what happened while you weren't looking. PROTECT THE HOME • Prey detection stops contraband at the threshold — the flap simply doesn't open. • Review the evidence later: every event on video, from routine transits to heroically thwarted deliveries. • Contraband detected. Crisis averted. FREEDOM FOR THEM • No collars, no compromises: recognises your cats by their microchips. • Rules per cat: who may go out, who may come in — and when. • Unlimited cats per device — harmony for the whole household. BRING THEM HOME SAFE • Night curfews bring wanderers home before dark — set once, forgotten. • Who's in and who's out, at a glance. • Real-time notifications for arrivals, exits and attempted smuggling. THE APP • A live activity feed with video of every coming and going. • A profile for every cat: habits, daily rhythms, prey attempts. • Remote unlock, door policies and curfews — control from the sofa. • Share the clips. "Nice try, Mabel." Works with your OnlyCat® flap. Set up in minutes. Stay connected. Feel relieved. Let cats be cats.

Screenshots

ZeroMOUSE™4 screens
OnlyCat4 screens

Verdict

The call

The clearest difference is rating: OnlyCat at 5.0 against ZeroMOUSE™'s 4.0. OnlyCat also leads on review sentiment (91% vs 50%). ZeroMOUSE™'s advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 3 months). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OnlyCat holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 50% of ZeroMOUSE™'s written reviews are positive against 91% of OnlyCat's.

UpkeepUpdate frequency

ZeroMOUSE™ ships an update every 3 weeks, OnlyCat every 3 months. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
ZeroMOUSE™ versus OnlyCat: the parameters behind the verdict, then further details
ParameterZeroMOUSE™OnlyCat
PriceFreeFree
Rating4.0 (2 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews90.9% of reviews — better
Number of ratings2 — better1
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationAd-supportedAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.1 — better15.5
Further details — not scored
Size70 MB61 MB
Age rating12+12+
DeveloperMousebouncer GmbhOnlyCat

Customer experience

ZeroMOUSE™

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

OnlyCat

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive90.9%
Neutral9.1%
Negative0.0%

In-app purchases

None

ZeroMOUSE™

No in-app purchases

None

OnlyCat

No in-app purchases

Questions

Is ZeroMOUSE™ free?
ZeroMOUSE™ is free to download, with no in-app purchases.
Is OnlyCat free?
OnlyCat is free to download, with no in-app purchases.
Which has better reviews, ZeroMOUSE™ or OnlyCat?
OnlyCat is rated higher. ZeroMOUSE™ averages 4.0 out of 5 from 2 ratings, while OnlyCat averages 5.0 from 1 ratings.
Do ZeroMOUSE™ or OnlyCat have ads?
OnlyCat shows ads; ZeroMOUSE™ does not.
Which is updated more often, ZeroMOUSE™ or OnlyCat?
ZeroMOUSE™ ships an update every 3 weeks, and OnlyCat every 3 months. Most recently, ZeroMOUSE™ was updated on October 17, 2026 and OnlyCat on October 10, 2026.

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