A pay as you go SIM card, or a prepaid SIM card, allows users to pay for utilizing of the SIM in advance. In other words, one charges based on actual usage. In IoT applications, these SIM cards are often used in devices with varying data consumption or within unpredictable usage scenarios.
How Pay as You Go Works on Practice?
It’s pretty simple. Users just buy a SIM card with a preloaded balance or top up their account with credits when necessary. As the IoT device transmits data, the usage is deducted from the available balance. When the balance decreases, one can easily top up their account to ensure uninterrupted service. This "pay-as-you-go" model empowers users to control costs and scale their IoT deployments according to demand.
Pay-as-You-Go vs. Flat Fee
The best pay as you go SIM card is not always about the brand but about the use case. Anyway, in some cases, flat rate can be even more relative to the specific application than any pay-as-you-go solution: