diff --git a/stats/known_apks.txt b/stats/known_apks.txt
index 3b03bae852..13cbb25965 100644
--- a/stats/known_apks.txt
+++ b/stats/known_apks.txt
@@ -1241,6 +1241,7 @@ dk.andsen.asqlitemanager_9.apk dk.andsen.asqlitemanager 2011-12-08
 dk.jens.backup_3.apk dk.jens.backup 2013-07-22
 dk.jens.backup_4.apk dk.jens.backup 2013-07-24
 dk.jens.backup_5.apk dk.jens.backup 2013-08-07
+dk.jens.backup_6.apk dk.jens.backup 2013-09-02
 dk.mide.fas.cmnightlies_2.apk dk.mide.fas.cmnightlies 2013-04-23
 dk.nindroid.rss_119.apk dk.nindroid.rss 2013-06-24
 edu.killerud.kitchentimer_3.apk edu.killerud.kitchentimer 2012-04-03
@@ -2235,6 +2236,7 @@ org.ntpsync_1.apk org.ntpsync 2012-05-19
 org.ntpsync_2.apk org.ntpsync 2012-06-07
 org.ntpsync_3.apk org.ntpsync 2012-08-29
 org.ntpsync_4.apk org.ntpsync 2013-04-04
+org.ntpsync_9.apk org.ntpsync 2013-09-02
 org.odk.collect.android_1015.apk org.odk.collect.android 2012-10-10
 org.odk.collect.android_1020.apk org.odk.collect.android 2012-10-27
 org.odk.collect.android_1023.apk org.odk.collect.android 2013-01-02