Dyalog APL Free Edition: Commercial‑use permission boundary for low‑traffic workloads

Determine whether Dyalog APL Free Edition can be used for a low‑traffic commercial web service without violating the license.

The free edition documentation states it is intended for learning and non‑production experimentation, allows unlimited code execution, and limits concurrent user sessions, but does not explicitly define the boundary between non‑commercial and commercial use or publish the exact session‑limit threshold.

Does the free edition permit commercial use for low‑traffic workloads? What is the precise concurrent session limit imposed by the free edition? How can users confirm compliance when the license text does not clarify commercial‑use permissions?