Bai.k uses a data card to be able to send its positioning and its warnings in autonomous mode. The cost of the same the first year (€ 15) is assumed in the sale price of the product. Mundo Pirulina does not apply profit margins to the service of the data provider. That is, we do not make money with the SIM card.
From the second year, the Bai.k user must pay the annual cost (€ 15) at the beginning of the annual cycle; little more than 1 euro a month. This price is only possible for the contracted system whose data is shared among the thousands of SIM cards that we buy. That is, what another person does not consume is available to you.