No Monthly Fee CrossPlatform Compatibility No subscription fees or monthly charges. This pet GPS tracker is compatible with iPhone 14.5 and Android 8.0. iOS users can track with the Find app; Android users should install the SmartTag app before use. Setup is simple: pair with the appropriate app (Find on iOS or SmartTag on Android) and start tracking your pet's location. Realtime Positioning Compatible with Apple iOS and Android systems. Attach the tracker to your cat's collar and view its live position on your smartphone. Follow your cat's movements in real time to stay informed about where they are and what they're doing. Waterproof Long Battery Life IP67 waterproof protection for rain, snow, and water play. Up to 12 months of standby time with a replaceable button battery, enabling worry outdoor adventures. Stable operation even in extreme cold climates. Adjustable Cat Collar Size The cat tracking collar is made of quality nylon, small and durable. Easily measure and cut the collar to fit your cat's neck for a secure, comfortable fit. Suitable for small to medium cats.