diff --git a/public/v4/apps/duplicati.yml b/public/v4/apps/duplicati.yml
new file mode 100644
index 0000000..8c2bcef
--- /dev/null
+++ b/public/v4/apps/duplicati.yml
@@ -0,0 +1,54 @@
+captainVersion: 4
+services:
+    # Duplicati
+    $$cap_appname:
+        image: linuxserver/duplicati:$$cap_duplicati_version
+        environment:
+            TZ: $$cap_tz
+            PUID: $$cap_puid
+            PGID: $$cap_guid
+            CLI_ARGS: $$cap_cli_args
+        volumes:
+            - $$cap_appname-config:/config # Contains all relevant configuration files.
+            - $$cap_localpath:/backups # Path to store local backups.
+            - $$cap_sourcepath:/source # Path to source for files to backup.
+        caproverExtra:
+            containerHttpPort: '8200'
+caproverOneClickApp:
+    variables:
+        - id: $$cap_tz
+          label: Timezone
+          description: Specify a timezone to use EG Europe/London, find yours at https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
+          defaultValue: Europe/Brussels
+        - id: $$cap_duplicati_version
+          label: Version Tag
+          description: Check out their Docker page for the valid tags https://hub.docker.com/r/linuxserver/duplicati/tags
+          defaultValue: 'version-v2.0.5.1-2.0.5.1_beta_2020-01-18'
+        - id: $$cap_puid
+          label: User ID
+          defaultValue: '1000'
+          description: User ID that the process uses, run (id $user) in your instance to see the id
+          validRegex: /.{1,}/
+        - id: $$cap_guid
+          label: Group ID
+          defaultValue: '1000'
+          description: Group ID that the process uses, run (id $user) in your instance to see the id
+          validRegex: /.{1,}/
+        - id: $$cap_localpath
+          label: Path to store local backups.
+        - id: $$cap_sourcepath
+          label: Path to source for files to backup.
+          description: 'eg: /var/lib/docker/volumes or just / So you can select the folders you want to backup'
+        - id: $$cap_cli_args
+          label: Command line arguments
+          description: Optionally specify any CLI variables you want to launch the app with, see https://duplicati.readthedocs.io/en/latest/07-other-command-line-utilities/
+    instructions:
+        start: |-
+            Duplicati works with standard protocols like FTP, SSH, WebDAV as well as popular services like Microsoft OneDrive, Amazon Cloud Drive & S3, Google Drive, box.com, Mega, hubiC and many others.
+        end: |-
+            Aaaand you're done! 😄
+            Your service is available at http://$$cap_appname.$$cap_root_domain
+    displayName: Duplicati
+    isOfficial: true
+    description: Free backup software to store encrypted backups online For Windows, macOS and Linux
+    documentation: https://docs.linuxserver.io/images/docker-duplicati
diff --git a/public/v4/apps/lychee.yml b/public/v4/apps/lychee.yml
index bc76b66..b944357 100644
--- a/public/v4/apps/lychee.yml
+++ b/public/v4/apps/lychee.yml
@@ -17,8 +17,6 @@ services:
             DB_USERNAME: $$cap_mariadb-user
             DB_PASSWORD: $$cap_mariadb-password
             STARTUP_DELAY: '30'
-        ports:
-            - $$cap_webui_port:80
         volumes:
             - $$cap_appname-conf:/conf
             - $$cap_appname-uploads:/uploads
@@ -57,10 +55,6 @@ caproverOneClickApp:
           defaultValue: '1000'
           description: Group ID that the process uses, run (id $user) in your instance to see the id
           validRegex: /.{1,}/
-        - id: $$cap_webui_port
-          label: Lychee WebUI Port
-          description: The port used to access Lychee
-          defaultValue: '90'
         - id: $$cap_mariadb_version
           label: MariaDB Version
           defaultValue: '10.5.6'
diff --git a/public/v4/logos/duplicati.png b/public/v4/logos/duplicati.png
new file mode 100644
index 0000000..fa5ef33
Binary files /dev/null and b/public/v4/logos/duplicati.png differ