If you're a Whistle GPS tracker owner, the news isn't good: your device no longer works. Tractive, the Austrian GPS tracker company, completed its acquisition of Whistle in July 2025, and all Whistle tracking devices were permanently deactivated on August 31, 2025. No firmware update, no workaround — the servers are gone.
Here's everything you need to know about what happened, what your options are, and which replacement tracker we recommend based on our independent testing.
Whistle was one of the original GPS pet tracker brands in the US, with millions of devices sold over a decade. In July 2025, Tractive — already the largest GPS pet tracker company globally — acquired Whistle's parent company.
Rather than maintaining two competing platforms, Tractive made the business decision to shut down Whistle's infrastructure entirely. The Whistle app stopped providing location data, the servers were decommissioned, and there is no path to reactivate any Whistle device.
Between July and September 2025, Tractive offered free replacement GPS trackers to verified Whistle owners. That offer expired on September 30, 2025. If you missed it, you'll need to purchase a new tracker at retail price.
After testing 12 GPS dog trackers in our 2026 GPS Tracker Rankings, the Tractive GPS Dog LTE earned our #1 spot with a score of 9.3/10. It's also the most natural transition for former Whistle owners because:
Consumer Reports, Wirecutter, and Reviewed.com all independently named the Tractive GPS Dog LTE their top recommendation in 2025–2026 — a rare consensus.
Our #1 rated GPS tracker. $55.30 device (sale, was $79) + $5/mo subscription.
Buy on Amazon →If the Tractive doesn't fit your needs, here are three alternatives from our rankings:
If you're shopping for a replacement, make sure you buy a 4G LTE device. The US 3G network shutdown is complete — any tracker still running on 3G is effectively dead. All five trackers in our GPS rankings use 4G LTE.
Losing your Whistle tracker is frustrating, but the silver lining is that the current generation of GPS trackers is significantly better than what Whistle offered in its final years. The Tractive GPS Dog LTE delivers better accuracy, longer battery life, and lower subscription costs than Whistle ever did.
If you're ready to switch, read our full 2026 GPS tracker rankings for the complete comparison.
Disclosure: PawTech Review participates in the Amazon Associates affiliate program. Links marked "Buy on Amazon" include our affiliate tag (pawtechrevi05-20) and we may earn a commission at no extra cost to you. Prices and availability are subject to change. We do not accept payment for rankings — all scores reflect independent editorial assessment.