diff --git a/package.json b/package.json
index 683fa136..981eca70 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cordova-plugin-calendar",
-  "version": "4.4.5",
+  "version": "4.4.6",
   "description": "This plugin allows you to manipulate the native calendar.",
   "cordova": {
     "id": "cordova-plugin-calendar",
diff --git a/src/android/nl/xservices/plugins/Calendar.java b/src/android/nl/xservices/plugins/Calendar.java
index a7f23cc2..6b3826a9 100644
--- a/src/android/nl/xservices/plugins/Calendar.java
+++ b/src/android/nl/xservices/plugins/Calendar.java
@@ -451,7 +451,7 @@ public void run() {
   }
 
   private static String getPossibleNullString(String param, JSONObject from) {
-    return from.isNull(param) ? null : from.optString(param);
+    return from.isNull(param) || "null".equals(from.optString(param)) ? null : from.optString(param);
   }
 
   private void listEventsInRange(JSONArray args) {
diff --git a/src/android/nl/xservices/plugins/accessor/AbstractCalendarAccessor.java b/src/android/nl/xservices/plugins/accessor/AbstractCalendarAccessor.java
index 38f05efd..eb0359df 100644
--- a/src/android/nl/xservices/plugins/accessor/AbstractCalendarAccessor.java
+++ b/src/android/nl/xservices/plugins/accessor/AbstractCalendarAccessor.java
@@ -205,8 +205,8 @@ private Event[] fetchEventInstances(String title, String location, long startFro
       if (!"".equals(selection)) {
         selection += " AND ";
       }
-      selection += Events.EVENT_LOCATION + "=?";
-      selectionList.add(location);
+      selection += Events.EVENT_LOCATION + " LIKE ?";
+      selectionList.add("%" + location + "%");
     }
 
     String[] selectionArgs = new String[selectionList.size()];
diff --git a/src/ios/Calendar.m b/src/ios/Calendar.m
index 156ebba5..f38a37c4 100644
--- a/src/ios/Calendar.m
+++ b/src/ios/Calendar.m
@@ -9,22 +9,18 @@ @implementation Calendar
 @synthesize eventStore;
 @synthesize interactiveCallbackId;
 
-#pragma mark Initialisation functions
+#pragma mark Initialization functions
 
-- (CDVPlugin*) initWithWebView:(UIWebView*)theWebView {
-  self = (Calendar*)[super initWithWebView:theWebView];
-  if (self) {
+- (void) pluginInitialize {
     [self initEventStoreWithCalendarCapabilities];
-  }
-  return self;
 }
 
 - (void) initEventStoreWithCalendarCapabilities {
   __block BOOL accessGranted = NO;
-  eventStore= [[EKEventStore alloc] init];
-  if([eventStore respondsToSelector:@selector(requestAccessToEntityType:completion:)]) {
+  EKEventStore* eventStoreCandidate = [[EKEventStore alloc] init];
+  if([eventStoreCandidate respondsToSelector:@selector(requestAccessToEntityType:completion:)]) {
     dispatch_semaphore_t sema = dispatch_semaphore_create(0);
-    [eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
+    [eventStoreCandidate requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
       accessGranted = granted;
       dispatch_semaphore_signal(sema);
     }];
@@ -32,9 +28,9 @@ - (void) initEventStoreWithCalendarCapabilities {
   } else { // we're on iOS 5 or older
     accessGranted = YES;
   }
-
+    
   if (accessGranted) {
-    self.eventStore = eventStore;
+    self.eventStore = eventStoreCandidate;
   }
 }
 
@@ -313,11 +309,11 @@ - (NSArray*) findEKEventsWithTitle: (NSString *)title
   }
   if (location != (id)[NSNull null] && location.length > 0) {
     location = [location stringByReplacingOccurrencesOfString:@"'" withString:@"\\'"];
-    [predicateStrings addObject:[NSString stringWithFormat:@"location == '%@'", location]];
+    [predicateStrings addObject:[NSString stringWithFormat:@"location contains[c] '%@'", location]];
   }
   if (notes != (id)[NSNull null] && notes.length > 0) {
     notes = [notes stringByReplacingOccurrencesOfString:@"'" withString:@"\\'"];
-    [predicateStrings addObject:[NSString stringWithFormat:@"notes == '%@'", notes]];
+    [predicateStrings addObject:[NSString stringWithFormat:@"notes contains[c] '%@'", notes]];
   }
 
   NSString *predicateString = [predicateStrings componentsJoinedByString:@" AND "];
@@ -891,34 +887,42 @@ - (void) eventEditViewController:(EKEventEditViewController*)controller didCompl
   [self.commandDelegate sendPluginResult:pluginResult callbackId:self.interactiveCallbackId];
 }
 
+
+/* There is no distingtion between read and write access in iOS */
 - (void)hasReadPermission:(CDVInvokedUrlCommand*)command {
-  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:YES];
+  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:(self.eventStore != nil)];
   [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
 }
 
 - (void)requestReadPermission:(CDVInvokedUrlCommand*)command {
-  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
+  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:[self requestCalendarAccess]];
   [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
 }
 
 - (void)hasWritePermission:(CDVInvokedUrlCommand*)command {
-  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:YES];
+  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:(self.eventStore != nil)];
   [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
 }
 
 - (void)requestWritePermission:(CDVInvokedUrlCommand*)command {
-  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
+  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:[self requestCalendarAccess]];
   [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
 }
 
 - (void)hasReadWritePermission:(CDVInvokedUrlCommand*)command {
-  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:YES];
+  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsBool:(self.eventStore != nil)];
   [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
 }
 
 - (void)requestReadWritePermission:(CDVInvokedUrlCommand*)command {
-  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
+  CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:[self requestCalendarAccess]];
   [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
 }
 
+-(CDVCommandStatus)requestCalendarAccess{
+    [self initEventStoreWithCalendarCapabilities];
+    return (self.eventStore != nil) ? CDVCommandStatus_OK : CDVCommandStatus_ERROR;
+}
+
+
 @end