Cellular Connectivity for the Internet of Things
Hologram (hologram.io) has 14 customer reviews on Five Star Index, with an average rating of 3.1 out of 5.
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Showing 1 review with 2 stars · Clear filters
Pat
Got a spam email from them out of nowhere and I just ignored it. Then I got another spam email only 2 days later: Hi ***, I reached out a few days ago to see if you're ready to engage ........ To me that is really pushy so I decided to leave this review.