Based on our record, Google Cloud Monitoring API seems to be more popular. It has been mentiond 1 time 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.
I don't think there is straightforward way of getting usage data from firebase apis, but you can get what you want via Google Cloud Monitoring API. Source: about 2 years ago
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