diff --git a/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardActivity.java b/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardActivity.java
index d837ec95a..4962279c6 100644
--- a/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardActivity.java
+++ b/xwords4/android/XWords4/src/org/eehouse/android/xw4/BoardActivity.java
@@ -81,6 +81,14 @@ public class BoardActivity extends Activity implements XW_UtilCtxt, Runnable {
         XwJNI.server_do( m_jniGamePtr );
     }
 
+    protected void onDestroy() 
+    {
+        XwJNI.game_dispose( m_jniGamePtr );
+        m_jniGamePtr = 0;
+        super.onDestroy();
+        Utils.logf( "onDestroy done" );
+    }
+
     public boolean onCreateOptionsMenu(Menu menu) {
         MenuInflater inflater = getMenuInflater();
         inflater.inflate( R.menu.board_menu, menu );
diff --git a/xwords4/android/anddict.c b/xwords4/android/anddict.c
index 190a0a1ad..e0d28f4f0 100644
--- a/xwords4/android/anddict.c
+++ b/xwords4/android/anddict.c
@@ -30,7 +30,6 @@ dict_splitFaces( DictionaryCtxt* dict, const XP_U8* bytes,
         ptrs[ii] = next;
         *next++ = *bytes++;
         *next++ = 0;
-        XP_LOGF( "pointing at str: %s", ptrs[ii] );
     }
 
     XP_ASSERT( next == faces + nFaces + nBytes );
@@ -75,7 +74,7 @@ andCountSpecials( AndDictionaryCtxt* ctxt )
     }
 
     return result;
-} /* ceCountSpecials */
+} /* andCountSpecials */
 
 static XP_Bitmap
 andMakeBitmap( XP_U8** ptrp )
@@ -136,10 +135,21 @@ andMakeBitmap( XP_U8** ptrp )
     return (XP_Bitmap)bitmap;
 } /* andMakeBitmap */
 
+static void
+andDeleteBitmap( const AndDictionaryCtxt* XP_UNUSED_DBG(ctxt),
+                 XP_Bitmap* bitmap )
+{
+    if ( !!bitmap ) {
+        XP_ASSERT(0);
+        /* CEBitmapInfo* bmi = (CEBitmapInfo*)bitmap; */
+        /* XP_FREE( ctxt->super.mpool, bmi->bits ); */
+        /* XP_FREE( ctxt->super.mpool, bmi ); */
+    }
+}
+
 static void
 andLoadSpecialData( AndDictionaryCtxt* ctxt, XP_U8** ptrp )
 {
-    LOG_FUNC();
     XP_U16 nSpecials = andCountSpecials( ctxt );
     XP_U8* ptr = *ptrp;
     Tile ii;
@@ -173,13 +183,11 @@ andLoadSpecialData( AndDictionaryCtxt* ctxt, XP_U8** ptrp )
     ctxt->super.bitmaps = bitmaps;
 
     *ptrp = ptr;
-    LOG_RETURN_VOID();
 } /* andLoadSpecialData */
 
 static void
 parseDict( AndDictionaryCtxt* ctxt, XP_U8* ptr, XP_U32 dictLength )
 {
-    LOG_FUNC();
     while( !!ptr ) {           /* lets us break.... */
         XP_U32 offset;
         XP_U16 numFaces, numFaceBytes = 0;
@@ -302,7 +310,39 @@ parseDict( AndDictionaryCtxt* ctxt, XP_U8* ptr, XP_U32 dictLength )
 static void
 and_dictionary_destroy( DictionaryCtxt* dict )
 {
-    
+    LOG_FUNC();
+    AndDictionaryCtxt* ctxt = (AndDictionaryCtxt*)dict;
+    XP_U16 nSpecials = andCountSpecials( ctxt );
+    XP_U16 ii;
+
+    if ( !!ctxt->super.chars ) {
+        for ( ii = 0; ii < nSpecials; ++ii ) {
+            XP_UCHAR* text = ctxt->super.chars[ii];
+            if ( !!text ) {
+                XP_FREE( ctxt->super.mpool, text );
+            }
+        }
+        XP_FREE( ctxt->super.mpool, ctxt->super.chars );
+    }
+    if ( !!ctxt->super.bitmaps ) {
+        for ( ii = 0; ii < nSpecials; ++ii ) {
+            XP_ASSERT( !ctxt->super.bitmaps[ii].largeBM );
+            XP_ASSERT( !ctxt->super.bitmaps[ii].smallBM );
+             andDeleteBitmap( ctxt, ctxt->super.bitmaps[ii].largeBM );
+             andDeleteBitmap( ctxt, ctxt->super.bitmaps[ii].smallBM );
+        }
+        XP_FREE( ctxt->super.mpool, ctxt->super.bitmaps );
+    }
+
+    XP_FREE( ctxt->super.mpool, ctxt->super.faces );
+    XP_FREE( ctxt->super.mpool, ctxt->super.facePtrs );
+    XP_FREE( ctxt->super.mpool, ctxt->super.countsAndValues );
+    XP_FREE( ctxt->super.mpool, ctxt->super.name );
+
+    XP_FREE( ctxt->super.mpool, ctxt->bytes );
+    XP_FREE( ctxt->super.mpool, ctxt );
+
+    LOG_RETURN_VOID();
 }
 
 DictionaryCtxt* 
diff --git a/xwords4/android/drawwrapper.c b/xwords4/android/drawwrapper.c
index 9f74a6835..ad64881bf 100644
--- a/xwords4/android/drawwrapper.c
+++ b/xwords4/android/drawwrapper.c
@@ -25,6 +25,7 @@ typedef struct _AndDraw {
     DrawCtxVTable* vtable;
     JNIEnv *env;
     jobject j_draw;             /* global ref; free it! */
+    MPSLOT
 } AndDraw;
 
 static jobject
@@ -451,11 +452,11 @@ draw_doNothing( DrawCtx* dctx, ... )
 DrawCtx* 
 makeDraw( MPFORMAL JNIEnv *env, jobject j_draw )
 {
-    AndDraw* draw = XP_MALLOC( mpool, sizeof(*draw) );
-    XP_MEMSET( draw, 0, sizeof(*draw) );
+    AndDraw* draw = (AndDraw*)XP_CALLOC( mpool, sizeof(*draw) );
     draw->vtable = XP_MALLOC( mpool, sizeof(*draw->vtable) );
     draw->j_draw = (*env)->NewGlobalRef( env, j_draw );
     draw->env = env;
+    MPASSIGN( draw->mpool, mpool );
 
     int ii;
     for ( ii = 0; ii < sizeof(*draw->vtable)/4; ++ii ) {
@@ -491,3 +492,13 @@ makeDraw( MPFORMAL JNIEnv *env, jobject j_draw )
 
     return (DrawCtx*)draw;
 }
+
+void
+destroyDraw( DrawCtx* dctx )
+{
+    AndDraw* draw = (AndDraw*)dctx;
+    JNIEnv* env = draw->env;
+    (*env)->DeleteGlobalRef( env, draw->j_draw );
+    XP_FREE( draw->mpool, draw->vtable );
+    XP_FREE( draw->mpool, draw );
+}
diff --git a/xwords4/android/drawwrapper.h b/xwords4/android/drawwrapper.h
index b698f5991..7bb82aaf4 100644
--- a/xwords4/android/drawwrapper.h
+++ b/xwords4/android/drawwrapper.h
@@ -27,5 +27,7 @@
 
 DrawCtx* makeDraw( MPFORMAL JNIEnv *env, jobject j_draw );
 
+void destroyDraw( DrawCtx* dctx );
+
 
 #endif
diff --git a/xwords4/android/utilwrapper.c b/xwords4/android/utilwrapper.c
index 812490c80..ef349b8ff 100644
--- a/xwords4/android/utilwrapper.c
+++ b/xwords4/android/utilwrapper.c
@@ -1,4 +1,4 @@
-/* -*-mode: C; fill-column: 76; c-basic-offset: 4; -*- */
+/* -*-mode: C; compile-command: "cd XWords4; ../scripts/ndkbuild.sh"; -*- */
 /* 
  * Copyright 2001-2009 by Eric House (xwords@eehouse.org).  All rights
  * reserved.
@@ -271,14 +271,12 @@ XW_UtilCtxt*
 makeUtil( MPFORMAL JNIEnv *env, jobject j_util, CurGameInfo* gi, 
           AndGlobals* closure )
 {
-    AndUtil* util = XP_MALLOC( mpool, sizeof(*util) );
-    XP_MEMSET( util, 0, sizeof(*util ) );
-    UtilVtable* vtable = XP_MALLOC( mpool, sizeof(*vtable) );
-    XP_MEMSET( vtable, 0, sizeof(*vtable ) );
+    AndUtil* util = (AndUtil*)XP_CALLOC( mpool, sizeof(*util) );
+    UtilVtable* vtable = (UtilVtable*)XP_CALLOC( mpool, sizeof(*vtable) );
     util->env = env;
     util->j_util = (*env)->NewGlobalRef( env, j_util );
     util->util.vtable = vtable;
-    util->util.mpool = mpool;
+    MPASSIGN( util->util.mpool, mpool );
     util->util.closure = closure;
     util->util.gameInfo = gi;
 
@@ -324,3 +322,13 @@ SET_PROC(    turnChanged);
 
     return (XW_UtilCtxt*)util;
 } /* makeUtil */
+
+void
+destroyUtil( XW_UtilCtxt* utilc )
+{
+    AndUtil* util = (AndUtil*)utilc;
+    JNIEnv *env = util->env;
+    (*env)->DeleteGlobalRef( env, util->j_util );
+    XP_FREE( util->util.mpool, util->util.vtable );
+    XP_FREE( util->util.mpool, util );
+}
diff --git a/xwords4/android/utilwrapper.h b/xwords4/android/utilwrapper.h
index 410973bc4..0eb951783 100644
--- a/xwords4/android/utilwrapper.h
+++ b/xwords4/android/utilwrapper.h
@@ -29,6 +29,8 @@
 
 XW_UtilCtxt* makeUtil( MPFORMAL JNIEnv *env, jobject j_util,
                        CurGameInfo* gi, AndGlobals* globals );
+void destroyUtil( XW_UtilCtxt* util );
+
 bool utilTimerFired( XW_UtilCtxt* util, XWTimerReason why, int handle );
 
 
diff --git a/xwords4/android/xwjni.c b/xwords4/android/xwjni.c
index 61a91e88d..42e2f76a5 100644
--- a/xwords4/android/xwjni.c
+++ b/xwords4/android/xwjni.c
@@ -1,4 +1,4 @@
-
+/* -*-mode: C; compile-command: "cd XWords4; ../scripts/ndkbuild.sh"; -*- */
 #include <string.h>
 #include <jni.h>
 #include <android/log.h>
@@ -19,8 +19,7 @@
 static CurGameInfo*
 makeGI( MPFORMAL JNIEnv* env, jobject j_gi )
 {
-    CurGameInfo* gi = XP_MALLOC( mpool, sizeof(*gi) );
-    XP_MEMSET( gi, 0, sizeof(*gi) );
+    CurGameInfo* gi = (CurGameInfo*)XP_CALLOC( mpool, sizeof(*gi) );
     int nPlayers, robotSmartness, boardSize;
     int ii;
     XP_UCHAR buf[256];          /* in case needs whole path */
@@ -75,6 +74,13 @@ makeGI( MPFORMAL JNIEnv* env, jobject j_gi )
     return gi;
 } /* makeGI */
 
+static void
+destroyGI( MPFORMAL CurGameInfo* gi )
+{
+    gi_disposePlayerInfo( MPPARM(mpool) gi );
+    XP_FREE( mpool, gi );
+}
+
 static bool
 loadCommonPrefs( JNIEnv* env, CommonPrefs* cp, jobject j_cp )
 {
@@ -141,15 +147,24 @@ Java_org_eehouse_android_xw4_jni_XwJNI_game_1makeNewGame
     model_setDictionary( game->game.model, dict );
 
     return (jint) game;
-}
+} /* makeNewGame */
 
 JNIEXPORT void JNICALL Java_org_eehouse_android_xw4_jni_XwJNI_game_1dispose
-(JNIEnv * env, jclass claz, jint gamePtr )
+( JNIEnv * env, jclass claz, jint gamePtr )
 {
     GameAndMPool* game = (GameAndMPool*)gamePtr;
     MemPoolCtx* mpool = game->mpool;
+    AndGlobals* globals = game->globals;
+
+    destroyGI( mpool, globals->gi );
+
     game_dispose( &game->game );
-    XP_FREE( mpool, game->globals );
+
+    destroyDraw( globals->dctx );
+    destroyUtil( globals->util );
+    vtmgr_destroy( mpool, globals->vtMgr );
+
+    XP_FREE( mpool, globals );
     XP_FREE( mpool, game );
     mpool_destroy( mpool );
 }