Different shapes of the same job
Both products live between a diagnostic application and a J1939 bus. The difference is where each lives. The Translator goes in a tech's bag and connects when needed. ecuLink stays plugged into the truck and exposes itself over the network. For tethered shop work, the Translator is a perfectly good answer; for remote work, multi-yard fleets, and shops that want trucks online continuously, ecuLink is the right shape.
Working with JPRO
JPRO is the most common cross-OEM application Noregon ships. ecuLink is fully compatible with JPRO — install it on the same machine and JPRO picks up ecuLink in its adapter list. A common deployment is "JPRO + ecuLink for remote, JPRO + Translator for in-bay," using whichever adapter is appropriate for the truck.
Where ecuLink wins
Three things the Translator wasn't designed to do, that ecuLink does as core product: remote sessions across the public internet with strong authentication; multi-user access with role-based permissions; per-session audit logs that are useful for warranty disputes and insurance subrogation. None of that is "Translator vs. ecuLink" — it is "tethered VCI vs. remote diagnostic platform."
Where the Translator wins
For shops whose customers always come to them, where the VCI lives in a tech's bag and pairs with a known machine, there's no reason to add an extra layer. The Translator is well-built, well-supported, and pairs cleanly with JPRO. Use it.
Pricing notes
ecuLink is one device per truck plus a per-device subscription with unlimited sessions; see the pricing page. Translator pricing is a hardware purchase plus JPRO licensing. The two cost structures are not directly comparable — they're solving different problems.