256 MB from the REST API; 16 MB from the SDKs . The total data in each write operation should be less than 256 MB. Multi-path updates are subject to the same size limitation. The total bytes written through simultaneous write operations on the database at any given time.
Read moreCan Firebase be used commercially?
You can do whatever you want with Firebase, regardless of payment tier, as long as you adhere to the terms of service .
Read moreCan Firebase be used for production?
We have a lot of large customers who use Firebase in production . The main metric to be aware of are the concurrent users. Basically, how many devices are connected to the app at the same time. The free plan covers you up until 100 concurrent users.7 Oca 2017
Read moreWho is using Firebase in production?
Who uses Firebase? 2688 companies reportedly use Firebase in their tech stacks, including Instacart, LaunchDarkly, and Twitch .
Read more