Apache Flink vs kdb+

Apache Flink

6.4 #9 in Streaming Analytics Software

About Apache Flink

kdb+

5.9 #56 in Database Software

About kdb+
Apache Flinkkdb+
Free planYesNo
Free trialNoNo
Paid fromFree—
Open sourceNoNo
Platformsapi, Linux, self-hostedWindows, macOS, Linux
Free planYes—
Stateful processingYes—
Supported languagesJava, Python, Scala—

Both are listed in Best Streaming Analytics Software. On Freedom251, Apache Flink scores higher on our published basis.