The subscription is needed to cover the monthly cellular data cost (the tracker use cellular data, just like a smartphone, to send signal).
The tracker does not use a lot of data, which is why we can keep prices as low as €8.99/month. We do not mark up the subscription a lot (only enough to cover taxes, payment processing fees and R&D/future development)
Subscriptions automatically renews – but you can cancel at any time via “My account”.
An active subscription is therefore vital for the tracker to function, as well as being needed for the insurance to be valid.