Fi - GPS Dog Tracker

3.6
3.84K reviews
100K+
Downloads
Content rating
Everyone
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About this app

Fi Series 3+ is the world's smartest GPS dog collar—now powered by AI.

Paired with a Fi collar, the Fi app brings you even closer to your dog. Track their location, monitor activity and health patterns, and get alerts if they ever leave a safe zone. It's peace of mind for the best pet parents out there.

FEATURES

GPS TRACKING

On vacation? Friend walking the dog? Instantly track your dog's location no matter where they are. Fi gives you the confidence to know they're safe from anywhere, anytime.

STOP ESCAPE ARTISTS

Designate safe zones around your home or dog's favorite places. If they leave without a trusted person, we'll alert you immediately. So if they wander anywhere, you'll be the first to know.

ACTIVITY MONITORING

Track your dog's step count daily and start streaks by achieving custom goals you set. Then see how they compare with similar dogs in the Fi community. Every step goes a long way toward keeping them happy and healthy.

AI BEHAVIOR INSIGHTS

Fi Series 3+ tracks more than just steps. Spot trends in activity, rest, scratching, licking, drinking, eating, and barking so you can stay in tune with your dog's health and habits, every day.

LOST DOG MODE

Never lose track again. If your dog goes missing, activate Lost Dog Mode to turn on rapidly refreshing live location updates until they're found.

BATTERY LIFE

With best-in-class battery, our collars lasts up to 3 months on a single charge. No other collar even comes close.

SUPPORT

Need help? We're here for you and your dog. Our support team is just a chat or phone call away when you need.

APPLE WATCH INTEGRATION

With our all new Series 3+, you can view your dog's location and activity directly on your wrist, so you're always connected, even without your phone.


OUR COLLAR

Available in 4 different colors and 5 different sizes to fit dogs of all sizes.

Fi works best when connected near a Bluetooth connected device with the Fi App or the provided charging base. Learn more about what we're building at: www.tryfi.com.
Updated on
Aug 29, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Financial info and Device or other IDs
This app may collect these data types
Location, Personal info and 7 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.6
3.74K reviews
Andrew Nelis
June 2, 2025
When Fi3 came around with the subscription model it was supposed to include hardware upgrades. They had raised the price, where the earlier models you bought the device and paid for the service, for a time, a reduced rate. So they have an actual upgrade which they claim faster seek times, a serious need, they have pulled the free hardware upgrades, right after my subscription reupped. And battery life went from months to maybe 2 weeks. The Apple move. Planned obsolescence. Screw us.
9 people found this review helpful
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Jennifer
September 5, 2025
I'm comparing this to another tracker, the app is more polished, the device is a lot smaller which is great. I haven't had it long enough to test battery yet. I wish the light was a lot brighter as it is on the other tracker. But my main issue and the most important one, is that it takes forever to locate the dog. deducting another star for the fact that you can't cancel your subscription, when I tried to cancel it said a customer service representative would get back to me, I'm still waiting
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Barking Labs Corp
September 3, 2025
Thanks for sharing this thoughtful comparison! We’re glad to hear you’re enjoying the app design and smaller device size. Quick and reliable tracking is core to our mission, so we’d love the chance to troubleshoot the tracking delay you experienced. Feel free to give us a call at (888) 434-3647 and we'll be happy to help!
Evan Black
August 25, 2025
App is terrible now. You can only open the app while connected to the Internet. Bluetooth functionality is dead. Collars no longer connect to phone via Bluetooth. No way to see even collar battery status without Internet, even if you're on the same wifi network as the base. So if you lose Internet, you lose everything. We will likely not continue service because of these issues.
3 people found this review helpful
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Barking Labs Corp
August 29, 2025
Thank you for your feedback. The Fi app works on both cellular data and Wi-Fi, and Bluetooth connectivity should still function. It sounds like you're experiencing an issue we'd be happy to help resolve. Please call us at (888) 434-3647—we're here to help get things back on track.