There is a 3rd alternative...
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Why choose Spike or Hibox?
Both platforms offer chat, file sharing, mentions, and group channels, but Spike stands out with its additional features such as voice messages, gif and emoji, and 1-1 video calls. Hibox offers integration with other Hibox products, but Spike has add-ons available. However, Hibox offers a free trial while Spike does not. Overall, both platforms offer a good range of features and it would depend on the specific needs of the user to determine which would be a better fit.