Yes, some GPS tracking services may include hidden fees. While the upfront cost covers the device itself, ongoing subscription fees for data usage, software access, and support are common. Some providers charge activation fees, data overage fees (for exceeding data limits), or require multi-year contracts with early termination fees. Software upgrades or access to premium features might also come with additional costs. It’s crucial to ask providers for a full breakdown of potential fees, read the contract terms carefully, and consider the long-term expenses beyond the initial purchase price.