-
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.
Arcane Tracker has been unofficially maintained on GitHub by it's mastermind since around MaDF. It's updated for FitB, but unlikely he'll keep up through another expansion as he's working on it without being able to test (no Android 10 or lower device).
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.