diff --git a/metadata/mixedbit.speechtrainer.yml b/metadata/mixedbit.speechtrainer.yml
index d381052e1f..cf6f9ce03d 100644
--- a/metadata/mixedbit.speechtrainer.yml
+++ b/metadata/mixedbit.speechtrainer.yml
@@ -1,7 +1,9 @@
 Categories:
   - Multimedia
 License: GPL-3.0-only
-WebSite: http://mixedbit.org
+AuthorName: Jan Wróbel
+AuthorEmail: jan@mixedbit.org
+AuthorWebSite: https://mixedbit.org/
 SourceCode: https://github.com/wrr/speech_trainer
 IssueTracker: https://github.com/wrr/speech_trainer/issues
 
diff --git a/metadata/mkg20001.net.samremote.yml b/metadata/mkg20001.net.samremote.yml
index 4faa902dce..f97404c34e 100644
--- a/metadata/mkg20001.net.samremote.yml
+++ b/metadata/mkg20001.net.samremote.yml
@@ -1,6 +1,9 @@
 Categories:
   - Multimedia
 License: GPL-3.0-or-later
+AuthorName: Maciej Krüger
+AuthorEmail: mkg20001@gmail.com
+AuthorWebSite: https://mkg20001.io/
 WebSite: https://github.com/mkg20001/SamRemote
 SourceCode: https://github.com/mkg20001/SamRemote
 IssueTracker: https://github.com/mkg20001/SamRemote/issues
diff --git a/metadata/mn.tck.semitone.yml b/metadata/mn.tck.semitone.yml
index 5ddb43d421..34bf67d7ef 100644
--- a/metadata/mn.tck.semitone.yml
+++ b/metadata/mn.tck.semitone.yml
@@ -1,6 +1,10 @@
 Categories:
   - Multimedia
 License: GPL-3.0-or-later
+AuthorName: Andy Tockman
+AuthorEmail: andy@tck.mn
+AuthorWebSite: https://tck.mn/
+WebSite: https://tck.mn/semitone/
 SourceCode: https://github.com/tckmn/semitone
 IssueTracker: https://github.com/tckmn/semitone/issues
 
diff --git a/metadata/mobi.boilr.boilr.yml b/metadata/mobi.boilr.boilr.yml
index 066a723ece..cfb871091f 100644
--- a/metadata/mobi.boilr.boilr.yml
+++ b/metadata/mobi.boilr.boilr.yml
@@ -4,6 +4,8 @@ License: GPL-3.0-or-later
 WebSite: http://boilr.mobi
 SourceCode: https://github.com/drpout/boilr
 IssueTracker: https://github.com/drpout/boilr/issues
+Translation: https://hosted.weblate.org/engage/boilr/?
+Changelog: https://github.com/drpout/boilr/releases
 Donate: http://boilr.mobi#donate
 Bitcoin: 1PHuSWfuAwR6oz9qV93rTdMVozfM85Qqxx
 
@@ -14,7 +16,7 @@ Description: |-
 
     Supports 2 alarm types:
 
-    * Price Hit - Triggered when price crosses the alarm's upper or lower limit.
+    * Price Hit - Triggered when price crosses the alarm’s upper or lower limit.
     * Price Change - Triggered when price changes more than X amount (in currency or percentage)
 
     in a specified time frame (e.g. 15 min). It uses a rolling time frame: price is
diff --git a/metadata/mobi.cyann.nstools.yml b/metadata/mobi.cyann.nstools.yml
index b92c7ed2c6..506127b6be 100644
--- a/metadata/mobi.cyann.nstools.yml
+++ b/metadata/mobi.cyann.nstools.yml
@@ -1,7 +1,6 @@
 Categories:
   - Development
 License: GPL-3.0-only
-WebSite: http://cyann.mobi/article/show/nstools
 SourceCode: https://github.com/arifhn/nstools
 IssueTracker: https://github.com/arifhn/nstools/issues
 
diff --git a/metadata/mobi.maptrek.yml b/metadata/mobi.maptrek.yml
index a8e2805557..2ab7f40c97 100644
--- a/metadata/mobi.maptrek.yml
+++ b/metadata/mobi.maptrek.yml
@@ -1,8 +1,11 @@
 Categories:
   - Navigation
 License: GPL-3.0-or-later
+AuthorName: Andrey Novikov
+AuthorWebSite: https://andreynovikov.info/
 SourceCode: https://github.com/andreynovikov/trekarta
 IssueTracker: https://github.com/andreynovikov/trekarta/issues
+Changelog: https://github.com/andreynovikov/trekarta/releases
 
 AutoName: Trekarta
 Description: Trekarta (former MapTrek) is designed for hiking, geocaching, off-roading,
@@ -10,7 +13,7 @@ Description: Trekarta (former MapTrek) is designed for hiking, geocaching, off-r
     do not need to have internet connection. You can easily import places and tracks
     from GPX and KML data formats or create waypoints in application and share them
     to others. It lets you write the track of your journey, even in background, so
-    you will never get lost and be able later see where you've been.
+    you will never get lost and be able later see where you’ve been.
 
 RepoType: git
 Repo: https://github.com/andreynovikov/trekarta
diff --git a/metadata/mobi.omegacentauri.PerApp.yml b/metadata/mobi.omegacentauri.PerApp.yml
index 8157dd35b0..a2052bc89b 100644
--- a/metadata/mobi.omegacentauri.PerApp.yml
+++ b/metadata/mobi.omegacentauri.PerApp.yml
@@ -3,7 +3,7 @@ Categories:
 License: BSD-3-Clause
 SourceCode: https://github.com/arpruss/perapp
 IssueTracker: https://github.com/arpruss/perapp/issues
-Donate: http://forum.xda-developers.com/donatetome.php?u=2714177
+Donate: https://forum.xda-developers.com/donatetome.php?u=2714177
 
 AutoName: PerApp
 Description: |-
diff --git a/metadata/moe.feng.nhentai.yml b/metadata/moe.feng.nhentai.yml
index 2204defeea..eac57069dd 100644
--- a/metadata/moe.feng.nhentai.yml
+++ b/metadata/moe.feng.nhentai.yml
@@ -9,6 +9,8 @@ Changelog: https://github.com/NHMoeDev/NHentai-android/releases
 
 AutoName: NHBooks
 Description: |-
+    '''NOTE:''' Maintenance of this app was suspended.
+
     The program provides a simple and elegant interface in accordance with the
     Material Design specification, and obtains the book from NHentai through the
     API, giving you a lightweight and convenient client. Special declaration
diff --git a/metadata/moe.minori.pgpclipper.yml b/metadata/moe.minori.pgpclipper.yml
index 97c3973190..a438b64cfe 100644
--- a/metadata/moe.minori.pgpclipper.yml
+++ b/metadata/moe.minori.pgpclipper.yml
@@ -3,6 +3,7 @@ Categories:
 License: Apache-2.0
 SourceCode: https://github.com/Mnkai/PGPClipper
 IssueTracker: https://github.com/Mnkai/PGPClipper/issues
+Changelog: https://github.com/Mnkai/PGPClipper/releases
 
 AutoName: PGPClipper
 Description: |-
diff --git a/metadata/mohammad.adib.roundr.yml b/metadata/mohammad.adib.roundr.yml
index 1cc7d99604..6edf955d80 100644
--- a/metadata/mohammad.adib.roundr.yml
+++ b/metadata/mohammad.adib.roundr.yml
@@ -1,13 +1,16 @@
 Categories:
   - System
 License: Apache-2.0
-WebSite: http://forum.xda-developers.com/showthread.php?t=2234079
+AuthorName: Mohammad Adib
+AuthorEmail: m.a.adib96@gmail.com
+AuthorWebSite: https://www.mohammadadib.com/
+WebSite: https://forum.xda-developers.com/showthread.php?t=2234079
 SourceCode: https://github.com/MohammadAdib/RoundR
 IssueTracker: https://github.com/MohammadAdib/RoundR/issues
 
 AutoName: RoundR
 Description: |-
-    RoundR takes advantage of the fact that regardless of the device's color, the
+    RoundR takes advantage of the fact that regardless of the device’s color, the
     screen is surrounded with a pitch black border, the corners of which are rarely
     ever touched. RoundR places four small overlays at the corners of the display,
     to simulate a rounded screen.