Whistle pet trackers are shutting down next month

Whistle, a subsidiary of Mars that makes pet trackers, has announced that it’s being acquired by Tractive. As part of the acquisition, Whistle trackers will stop working, but Tractive is offering to replace those trackers for free for a limited time.

The official shutdown date for Whistle’s pet trackers is August 31, 2025. Users will be able to request a replacement tracker until September 30, 2025 by providing their tracker’s serial number and then choosing a new Tractive tracker. Tractive will also credit pre-paid Whistle subscriptions to new Tractive accounts, and give anyone with a Whistle tracker without an active subscription two months of a Tractive subscription for free.

Whistle’s devices, like the Whistle Go Explore or Whistle Fit, focused on using GPS, Wi-Fi, and AT&T’s network to keep tabs on the whereabouts of your dogs and cats. Tractive goes further by offering similar tracking features alongside wearable-style health monitoring. If you pay for the company’s subscription — a Basic plan gets you all the most important features for $108 per year — you’ll be able to see your dog’s heart rate, respiratory rate and track if it’s barking more than usual.

If you’re willing to pay even more, Tractive offers a Premium plan for $120 per year that unlocks things like “worldwide coverage” for its trackers and the ability export the GPS data your tracker collects. It’s annoying to have to claim a new tracker and transfer accounts, but as far as acquisitions go, this seems like a best-case scenario.