Based on our record, Hologram.io seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
OVMS is a not cheap module. It comes with a hologram.io SIM card, but you can use any data-only LTE plan. Cost for the module is over $250, and then you'll have to pay somewhere south of $5/mo for a data plan if you go with hologram.io. Source: about 1 year ago
An LTE plan from hologram.io is a few bucks a month... And I'd gladly pay it and not give my money to OnStar's broken stuff :-). Source: over 1 year ago
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