diff --git a/android/app/src/main/assets/litter.scm b/android/app/src/main/assets/litter.scm
new file mode 100644
index 0000000..cb2dc21
--- /dev/null
+++ b/android/app/src/main/assets/litter.scm
@@ -0,0 +1,41 @@
+;; Mongoose 2000 Copyright (C) 2018 FoAM Kernow
+;;
+;; This program is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU Affero General Public License as
+;; published by the Free Software Foundation, either version 3 of the
+;; License, or (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU Affero General Public License for more details.
+;;
+;; You should have received a copy of the GNU Affero General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+(define (init-litter)
+  ;; retreve (and increment) the pack's id info
+  (set-current! 'entity-type "pack")
+  (let ((letter (entity-get-value "litter-code-letter"))
+	(number (entity-get-value "litter-code-number"))
+	(parent (entity-get-value "unique_id")))
+    (let ((name (cond 
+		 ((or (not letter) (not number)) "No ID")
+		 (else
+		  (entity-set-value! "litter-code-number" "int" (+ number 1))
+		  (entity-update-values!) ;; hmm, cancel won't work
+		  (set-current! 'pack (es-ktv-list)) ;; need to remove this pack stuff...
+		  (string-append letter (number->string number))))))
+      (list
+       (ktv "name" "varchar" name)
+       (ktv "parent" "varchar" parent) 
+       (ktv "date" "varchar" (date->string (date-time)))))))
+
+(define (db-current-litter)
+  (db-filter
+   db "sync" "litter"
+   (list
+    (list "pack-id" "varchar" "=" (ktv-get (get-current 'pack '()) "unique_id"))
+    (list "dob" "varchar" "d<" 30))))
+
+
diff --git a/android/app/src/main/java/foam/starwisp/UpdateLitterActivity.java b/android/app/src/main/java/foam/starwisp/UpdateLitterActivity.java
new file mode 100644
index 0000000..fd567f3
--- /dev/null
+++ b/android/app/src/main/java/foam/starwisp/UpdateLitterActivity.java
@@ -0,0 +1,30 @@
+// Starwisp Copyright (C) 2013 Dave Griffiths
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package foam.starwisp;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.content.Context;
+
+public class UpdateLitterActivity extends foam.starwisp.StarwispActivity
+{
+    @Override
+    public void onCreate(Bundle savedInstanceState)
+    {
+        m_Name = "update-litter";
+        super.onCreate(savedInstanceState);
+    }
+}