If you encounter a situation where you can see all the information on the website but not on the app, updating the topo will very likely help you.

The same goes to a situation where your friend has more information in the topo than you have. 

Here's how to make sure you have the latest information in a topo:

1. Go to the main view of the topo in the app.

2. Pull down which makes an option to update appear (picture below).

3. Click "update" and wait for the loading to finish.

Now you have the latest version of the topo!