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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
If not Etesync should do what you want via Etesync-Dav. Etesync is $24/yr, but you can try it for 30 days no cost. I think it's a great service that works seamlessly after very minimal initial setup.
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