How do I select maps in the web app?
To select and overlay two base maps in the web app, follow these steps:
- Click on the base maps you want to display.
- Use the vertical bar between the two backgrounds to adjust their opacity:
- Drag the slider to the left or right to make one of the two backgrounds more or less visible.
- If you move the slider to one end, you will see only one background map.

This overlay system is useful for comparing different types of maps (IGN, satellite, etc.).
⚠️ Please note
Not all base maps available on the mobile app are yet accessible in the Web App.
We are working to gradually expand this feature.
Want to learn more about using the Web App? Watch the presentation of this feature by Tim Maclean, CEO of Iphigénie:
Updated on: 07/05/2026
Thank you!