What is AusENC and who provides it?

The official ENC service for Australian waters, provided by the AHO.

Are AusENC charts free or subscription-based?

Subscription-based (varying terms from 3 to 12 months).

Difference between AusENC and commercial ENCs?

AusENC is official government data; commercial (Navionics) is third-party.

What is an ENC cell and how do I know which I need?

A "cell" is a digital chart tile; use the Chart Index to find specific cell IDs.

Can I use ENCs on a tablet or only on plotters?

Both, provided the app supports S-63 encryption (e.g., SEAiq).

What does ECDIS mean and do recreational boaters need it?

Electronic Chart Display and Information System; required for ships, not rec boats.

Which chart formats work with common plotters?

Most use proprietary cards (Navionics, C-MAP) or S-57/S-63 for official ENCs.

How do I import GPX/KML routes to a marine app?

Use the "Import" function in the app settings (e.g., Navionics, Boating).

Are digital marine charts accepted by AMSA?

Only official ENCs used on an approved ECDIS or ECS. Unofficial apps like Navionics do not meet legal carriage requirements for commercial vessels.

Best marine navigation apps in Australia?

Navionics (Boating), C-MAP, SEAiq, and Savvy Navvy.

Are free nautical chart websites reliable?

Generally no; they are often outdated and "not for navigation."