Signum Outdoors
For boaters and paddlers

Keep every boat on one map.

Signum links your group by radio, so you can see where each boat was last heard and message the others across the water. Pin the put-in, the portage and camp.

Join the field-test list How it works
Signum map of a group with waypoints, a recorded track and a radio
01

Boats drift apart, and the water is wide.

A paddling group strings out along a shoreline. One boat stops to fish, another takes the far side of the bay, and the last one is behind a point.

There is no cell signal on most of the water you want to be on, and shouting does not carry as far as you would like.

You want to know where the other boats were last heard, and have a place to leave a note for the group.

0 BARS LAST HEARD 4 MIN AGO
02

A lake trip

  1. At the put-in, you make a group and each boat scans the QR code to join.
  2. You save the put-in and the planned camp as waypoints before launching.
  3. Out on the lake, you open the map at a rest and see where each boat was last heard.
  4. One boat is behind the point, so you send a short message and pin the landing you are heading for.
  5. At the portage, you drop a waypoint at the carry trail so the others can find the start.
  6. At camp, you record where you paddled and send the track to the group.
03

What you get

Every boat on one map

See each boat's last-known position and how old it is.

Put-in, portage and camp

Waypoints everyone in the group can see.

Offline maps

Download the lake or river area before you leave coverage.

Messages and small photos

Send a note or a low-detail photo to the group without cell service.

Record the paddle

Log the distance and send a simplified track to the group.

Map and chat together

Read the group chat without losing the map.

04

See it

Signum group chat with a photo, reactions and a shared track
Chat without a tower
Signum recorded track with distance, climb and an elevation chart
Record where you went
Signum split view with the map above and the group chat below
Map and chat together

Swipe for more

Demo group in Yosemite Valley. People and messages are for demo purposes.

05

Ready in three steps

  1. 1

    Protect your gear

    Put your phone and radio in the waterproofing they need.

  2. 2

    Pair and scan

    Pair a compatible radio and scan a QR code to join.

  3. 3

    Pin the put-in

    Save the put-in and camp before you launch.

Signum is not an emergency service and makes no range promises. Good to know

Keep the group together on the water.

Join the field-test list Other ways to use Signum