One subscription works on both your phone and your tablet simultaneously.
If you aren't ready to pay for a full subscription, consider these workarounds that utilize Navionics technology or data. 1. Garmin ActiveCaptain
If the "free" options don't meet your needs, here is how to get the most bang for your buck:
Navionics frequently offers a 50% discount when you renew an existing subscription.
View SonarChart™ HD bathymetry and standard nautical charts.
Since Garmin acquired Navionics, some features have integrated. The allows for some basic mapping and community-sourced data (the "Community Layer") which is often free to access and helps with local hazards. 2. Community Layer Overlays
If you have a compatible sonar/fishfinder, you can sometimes use the app to create your own . While you might need the app, the data you "draw" yourself by driving your boat is yours to view during that session. The Risks of "Cracked" or Pirated Downloads
Don't buy a global subscription; stick to your local lake or coastal region to save money.
It requires an internet connection; you cannot download maps for offline use. The Boating App Trial
The easiest way to use Navionics for free is through their . Access: Open any web browser on a PC, Mac, or tablet.