One tier. One price. No subscription.

CritterKey is free forever for pet owners. Shelters and vets pay a one-time hardware price — no monthly fees, no consumables, no upsells.

🛡️

CritterKey

One-time hardware: $149 per shelter/vet device — owners always free.

Free for owners. One-time for clinics. No subscription. No renewal. No consumables.

See how it works

📷 Biometric ID

🐾 Multi-pet

🚫 No monthly fees

📡 On-device reliability

Six things worth comparing side by side.

	CritterKey	Whisker+
Subscription cost	None. One-time hardware.	Monthly subscription.
AI reliability / camera pass rate	On-device edge match — works offline.	Cloud-dependent; weaker offline.
Biometric per-pet identity	True biometric hash per pet (nose/face/iris).	RFID/proximity tag, per-cat.
Multi-pet support	Unlimited pets per owner, no per-pet fees.	Per-cat subscription.
Consumables pricing	None — standard cleaners only.	Proprietary consumables required.
Warranty	Lifetime on hardware, free owner records forever.	Limited, tied to active subscription.

Free for every pet owner. Register one pet in about two minutes.