diff --git a/metadata/net.mypapit.mobile.myposition.yml b/metadata/net.mypapit.mobile.myposition.yml
index 61d9398449..3583fb67b4 100644
--- a/metadata/net.mypapit.mobile.myposition.yml
+++ b/metadata/net.mypapit.mobile.myposition.yml
@@ -1,6 +1,9 @@
 Categories:
   - Navigation
 License: GPL-2.0-or-later
+AuthorName: GDR!
+AuthorEmail: gdr@gdr.name
+AuthorWebSite: https://gdr.name/
 SourceCode: https://github.com/gjedeer/mylocation
 IssueTracker: https://github.com/gjedeer/mylocation/issues
 Changelog: https://github.com/gjedeer/mylocation/releases
diff --git a/metadata/net.nightwhistler.pageturner.yml b/metadata/net.nightwhistler.pageturner.yml
index 16d5a70a7a..3fc231a05b 100644
--- a/metadata/net.nightwhistler.pageturner.yml
+++ b/metadata/net.nightwhistler.pageturner.yml
@@ -1,6 +1,9 @@
 Categories:
   - Reading
 License: GPL-3.0-only
+AuthorName: Alex Kuiper
+AuthorEmail: alex@nightwhistler.net
+AuthorWebSite: https://nightwhistler.net/
 WebSite: http://pageturner-reader.org
 SourceCode: https://github.com/NightWhistler/PageTurner
 IssueTracker: https://github.com/NightWhistler/PageTurner/issues
@@ -9,6 +12,13 @@ FlattrID: '462097'
 
 AutoName: PageTurner
 Description: |-
+    PageTurner allows you to grab little moments of reading time, always,
+    everywhere. Read a bit on your phone while you’re waiting for the bus. Read
+    a bit more at home in bed on your tablet. Have the app read to you while
+    you drive or work out… all seamlessly synchronized. You just open the app
+    and it takes you to the place you left off, no matter which device you are
+    reading on.
+
     * Cloud synchronization for reading progress
     * Integrates with Calibre content server (or other OPDS/Stanza sources)
     * Search OPDS / Stanza catalogs
diff --git a/metadata/net.nullsum.audinaut.yml b/metadata/net.nullsum.audinaut.yml
index 2ab4f76f1d..ecbc075740 100644
--- a/metadata/net.nullsum.audinaut.yml
+++ b/metadata/net.nullsum.audinaut.yml
@@ -2,6 +2,8 @@ Categories:
   - Multimedia
 License: GPL-3.0-only
 AuthorName: Andrew Rabert
+AuthorEmail: nullsum.net@gmail.com
+AuthorWebSite: https://nullsum.net/
 SourceCode: https://github.com/nvllsvm/Audinaut
 IssueTracker: https://github.com/nvllsvm/Audinaut/issues
 Changelog: https://github.com/nvllsvm/Audinaut/blob/HEAD/CHANGELOG.md
diff --git a/metadata/net.nurik.roman.dashclock.yml b/metadata/net.nurik.roman.dashclock.yml
index da6b08a28f..2f589e8078 100644
--- a/metadata/net.nurik.roman.dashclock.yml
+++ b/metadata/net.nurik.roman.dashclock.yml
@@ -1,12 +1,16 @@
 Categories:
   - Theming
 License: Apache-2.0
+AuthorName: Roman Nurik
+AuthorWebSite: https://roman.nurik.net/
 SourceCode: https://github.com/romannurik/dashclock/
 IssueTracker: https://github.com/romannurik/dashclock/issues
 Changelog: https://github.com/romannurik/dashclock/wiki/Changelog
 
 AutoName: DashClock Widget
 Description: |-
+    '''NOTE:''' this app was deprecated by its author.
+
     DashClock is a replacement lock screen clock widget for Android 4.2+. It also
     exposes additional status items called extensions. The widget comes bundled with
     extensions that give you instant access to:
@@ -16,7 +20,7 @@ Description: |-
     * Your next scheduled alarm
     * Weather from choice of location
 
-    Other extensions are available. To add the widget to your Android 4.2 device's
+    Other extensions are available. To add the widget to your Android 4.2 device’s
     lock screen, simply swipe to the left-most page of your lock screen and touch
     the "+" icon. Then, select "DashClock" to customize and add the widget. You can
     make this the primary lock screen widget, replacing the default clock, by first
diff --git a/metadata/net.nurik.roman.muzei.yml b/metadata/net.nurik.roman.muzei.yml
index 77b4a52e6d..d692ffbc1d 100644
--- a/metadata/net.nurik.roman.muzei.yml
+++ b/metadata/net.nurik.roman.muzei.yml
@@ -4,7 +4,9 @@ Categories:
   - Multimedia
   - Theming
 License: Apache-2.0
-WebSite: http://www.muzei.co
+AuthorName: Roman Nurik and Ian Lake
+AuthorEmail: support@muzei.co
+WebSite: https://muzei.co/
 SourceCode: https://github.com/romannurik/muzei
 IssueTracker: https://github.com/romannurik/muzei/issues