# Mergin Maps Mobile App Interface

Below is a description of various items within the user interface of Mergin Maps mobile app.

Mergin Maps mobile app user interface


To get familiar with the mobile app, we recommend going through our Get Started tutorials.

# Main page, projects and account details

On the main page of the mobile app, there are three tabs in the bottom navigation bar:

  • Home contains the overview of downloaded projects
  • Projects displays all projects in the current workspace available for download
  • Explore includes the list of all public projects

The account icon in the right upper corner of the screen can be used to manage the account and workspaces in the mobile app.

# Home

In the Home tab, you can find the list of projects that are downloaded to your mobile device, including local projects that are yet to be synchronised to Mergin Maps.

Mergin Maps mobile app Home tab

  • Open a project by tapping on its name
  • Use the Create project button to create a new project in the mobile app. For detailed steps, go to Create a project in Mergin Maps mobile app.
  • Use the button next to the project name to upload a local project to the cloud, synchronise the project, see local changes or remove the project from your device

# Projects

The Projects tab contains the list of all projects in your current workspace. The workspace name is displayed on the top of the screen (here: my-team).

Mergin Maps mobile app Projects tab

  • Tap the Download button next to the project name to download it to your mobile device
  • For projects that are already downloaded to your device, you can use the button next to the project name to synchronise the project, see local changes or remove the project from your device


If you need to download a project from another workspace, you need to switch to this workspace in the mobile app first.

# Explore

In the Explore tab, you can browse public projects.

Mergin Maps mobile app Projects tab

Use the search bar to narrow the results. Public projects can be downloaded and opened on your mobile device, however, you cannot synchronise your local changes unless you have appropriate permissions.

# Workspaces and Mergin Maps account

Your Mergin Maps account can be accessed by tapping the icon on the top right of the main page.

Here, you can sign up to Mergin Maps or sign in if you already have a Mergin Maps account. If you are already logged in, you will see your account details.

Account details in Mergin Maps mobile app

  • The current workspace (here: my team) is displayed in the Workspaces section. Tap on it to switch to another workspace or to create a new workspace.
    Mergin Maps mobile app Selecting workspace

  • Manage Account is a shortcut to the dashboard where you can manage your projects, workspaces and subscriptions

  • Sign out to sign out or to switch to a different account

  • Close account can be used to delete your account within the mobile app


Be careful! If you delete your account, you will lose access to your Mergin Maps projects both on the mobile device and on the dashboard.

# Working with a project

A project is opened by tapping its name in the Home or in the Projects tab. You have to download the project in order to be able to work with it.

When a project is opened, you will see the map window. The map can be moved by dragging around and zoomed in/out by pinching open/close. Tapping on a feature displays the attributes form.

A project opened in Mergin Maps mobile app

# Current position and GPS info

To see your current position and GPS info, you have to enable location services in your mobile device.

Tapping the location button in the right bottom corner of the screen centres the map to your current position and keeps it centred while you are moving. If you move the map manually, the auto-centre mode turns off automatically.

Mergin Maps mobile app GPS accuracy

In the left bottom corner of the screen, there is a GPS button that displays the GPS accuracy as reported by your mobile device. The colour of the button denotes the accuracy threshold set in GPS settings in the mobile app.

Tapping the GPS accuracy button opens the GPS info panel:
GPS info panel

  • Source: internal GPS of the mobile device or external GPS receiver connected via Bluetooth
  • Longitude, Latitude: current position
  • X, Y: current position in project's coordinate reference system
  • Horizontal and Vertical accuracy of the GPS position
  • Altitude: ellipsoidal height if internal GPS is used. External GPS devices usually return orthometric heights (ellipsoid with the geoid separation applied).
  • Satellites (in use/view): number of satellites
  • Speed
  • Last fix: time of the last received GPS position
  • GPS antenna height that can be set in GPS settings

# Sync

The Sync button can be used to synchronise changes during the field survey.

It also indicates that synchronisation is in progress.

Mergin Maps mobile app Sync button

# Add

Tap the Add button to enter the recording mode so you are able to survey new features.
Mergin Maps mobile app Add button

The active layer currently used for the survey is displayed on the top of the screen. Tap on it to choose another active layer from editable layers in the project.
Active survey layer


How to Add, Edit, Delete Features will show you how to capture points, lines and polygons in Mergin Maps mobile app as well as how to edit their geometry and attributes.

# Layers

Tap the Layers button to display the layers in your project.

Here, you can toggle specific layers on and off to change their visibility on the map, see layers legend, and browse features in the layers.

More details can be found in Layers in Mergin Maps Mobile App.

Mergin Maps mobile app Layers

# More options: Zoom to project, Map themes, Position tracking, Local changes, Settings

The More button opens a list of additional options

Mergin Maps mobile app More button

# GPS settings

  • GPS accuracy threshold: value used to change the colour of GPS accuracy indicator to yellow
  • Manage GPS receivers: option to switch between internal GPS and external GPS receiver connected via Bluetooth. See External GPS for more details.
  • GPS antenna height: option to enter the height of a GPS antenna (e.g. when a surveying pole is used)

Mergin Maps mobile app GPS Settings

# Streaming mode and recording settings

Streaming mode can be used when surveying lines or polygons to capture vertices based on the GPS location.

  • Interval threshold type: the type of interval in streaming mode, can be set to Time elapsed or Distance travelled .
  • Threshold interval the interval of recording vertices

Recording setting contains options to:

  • Reuse last value option if used, last entered values of selected attributes will be automatically filled in when creating a new feature.
  • Automatically sync changes if used, local changes will be synchronised automatically.

Mergin Maps mobile app Streaming mode and recording settings