Google hasn’t given a reason. Neither its help page nor its forum post explains the decision. The wider direction is clear, though: Google’s real smartwatch effort now sits with the Pixel Watch and Wear OS, and there has been no new Sense or Versa model since 2022.
The Fitbit App Gallery was never as big as Apple’s App Store or Google Play, but older Versa and Sense watches once ran third-party apps for things like Strava, Uber and Starbucks, along with barcode tools and small utilities. That openness made the watches feel expandable. It has been shrinking for years, and November 28 effectively ends new third-party Fitbit smartwatch software worldwide.
If third-party apps and faces are a must for you, the realistic paths lead off Fitbit OS: a Pixel Watch if you use Android, an Apple Watch if you use an iPhone, or a Garmin watch with its Connect IQ store. Fitbit developers who want to keep their apps alive would need to rebuild them for Wear OS to reach Google Play.