diff --git a/MasterPassword/ObjC/iOS/MPUsersViewController.h b/MasterPassword/ObjC/iOS/MPUsersViewController.h
index 651e3ef4..a0b1e5a5 100644
--- a/MasterPassword/ObjC/iOS/MPUsersViewController.h
+++ b/MasterPassword/ObjC/iOS/MPUsersViewController.h
@@ -18,7 +18,7 @@
 
 #import "LLGitTip.h"
 
-@interface MPUsersViewController : UIViewController <UICollectionViewDataSource, UICollectionViewDelegate, UITextFieldDelegate>
+@interface MPUsersViewController : UIViewController <UICollectionViewDataSource, UICollectionViewDelegateFlowLayout, UITextFieldDelegate>
 
 @property (strong, nonatomic) IBOutlet UINavigationBar *navigationBar;
 @property(weak, nonatomic) IBOutlet UIView *userSelectionContainer;
diff --git a/MasterPassword/ObjC/iOS/MPUsersViewController.m b/MasterPassword/ObjC/iOS/MPUsersViewController.m
index 50af9c85..0ec581b5 100644
--- a/MasterPassword/ObjC/iOS/MPUsersViewController.m
+++ b/MasterPassword/ObjC/iOS/MPUsersViewController.m
@@ -242,6 +242,17 @@ typedef NS_ENUM(NSUInteger, MPActiveUserState) {
 
 #pragma mark - UICollectionViewDataSource
 
+- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout
+  sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
+
+    if (collectionView == self.avatarCollectionView) {
+        CGSize parentSize = self.avatarCollectionView.bounds.size;
+        return CGSizeMake( parentSize.width / 2, parentSize.height );
+    }
+
+    Throw(@"unexpected collection view: %@", collectionView);
+}
+
 - (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
 
     if (collectionView == self.avatarCollectionView)
diff --git a/MasterPassword/ObjC/iOS/Storyboard.storyboard b/MasterPassword/ObjC/iOS/Storyboard.storyboard
index a68d81f0..4485c0b5 100644
--- a/MasterPassword/ObjC/iOS/Storyboard.storyboard
+++ b/MasterPassword/ObjC/iOS/Storyboard.storyboard
@@ -16,11 +16,11 @@
                         <viewControllerLayoutGuide type="bottom" id="VGz-R0-vMD"/>
                     </layoutGuides>
                     <view key="view" clipsSubviews="YES" contentMode="scaleToFill" id="DOr-Xu-P9q" userLabel="Root">
-                        <rect key="frame" x="0.0" y="0.0" width="320" height="480"/>
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                         <subviews>
                             <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="rWM-08-aab" userLabel="Users Root">
-                                <rect key="frame" x="0.0" y="0.0" width="320" height="480"/>
+                                <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                 <subviews>
                                     <navigationBar contentMode="scaleToFill" translucent="NO" translatesAutoresizingMaskIntoConstraints="NO" id="790-G2-I8g">
@@ -32,7 +32,7 @@
                                         </items>
                                     </navigationBar>
                                     <collectionView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" minimumZoomScale="0.0" maximumZoomScale="0.0" dataMode="prototypes" translatesAutoresizingMaskIntoConstraints="NO" id="L6J-pd-gcp" userLabel="Avatar Collection">
-                                        <rect key="frame" x="0.0" y="0.0" width="320" height="480"/>
+                                        <rect key="frame" x="0.0" y="20" width="320" height="548"/>
                                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                                         <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
                                         <collectionViewFlowLayout key="collectionViewLayout" scrollDirection="horizontal" minimumLineSpacing="0.0" minimumInteritemSpacing="0.0" id="ATB-kM-EGu">
@@ -43,7 +43,7 @@
                                         </collectionViewFlowLayout>
                                         <cells>
                                             <collectionViewCell opaque="NO" multipleTouchEnabled="YES" contentMode="center" reuseIdentifier="MPAvatarCell" id="Zab-uQ-uk9" customClass="MPAvatarCell">
-                                                <rect key="frame" x="80" y="-44" width="160" height="568"/>
+                                                <rect key="frame" x="80" y="-10" width="160" height="568"/>
                                                 <autoresizingMask key="autoresizingMask" flexibleMinX="YES" flexibleMaxX="YES" flexibleMinY="YES" flexibleMaxY="YES"/>
                                                 <view key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center">
                                                     <rect key="frame" x="0.0" y="0.0" width="160" height="568"/>
@@ -111,11 +111,11 @@
                                             </collectionViewCell>
                                         </cells>
                                         <collectionReusableView key="sectionHeaderView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" id="LD1-mt-htC">
-                                            <rect key="frame" x="0.0" y="0.0" width="80" height="480"/>
+                                            <rect key="frame" x="0.0" y="0.0" width="80" height="548"/>
                                             <autoresizingMask key="autoresizingMask"/>
                                         </collectionReusableView>
                                         <collectionReusableView key="sectionFooterView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" id="G8v-Sb-ilL">
-                                            <rect key="frame" x="240" y="0.0" width="80" height="480"/>
+                                            <rect key="frame" x="240" y="0.0" width="80" height="548"/>
                                             <autoresizingMask key="autoresizingMask"/>
                                         </collectionReusableView>
                                         <connections>
@@ -124,7 +124,7 @@
                                         </connections>
                                     </collectionView>
                                     <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="qp1-nX-o4i" userLabel="Entry">
-                                        <rect key="frame" x="20" y="192" width="280" height="63"/>
+                                        <rect key="frame" x="20" y="280" width="280" height="63"/>
                                         <autoresizingMask key="autoresizingMask" widthSizable="YES" flexibleMaxY="YES"/>
                                         <subviews>
                                             <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" text="Enter your full name:" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="10" translatesAutoresizingMaskIntoConstraints="NO" id="5fe-rt-zFa" userLabel="Entry Label">
@@ -166,7 +166,7 @@
                                         </constraints>
                                     </view>
                                     <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="XEP-O3-ayG" userLabel="Footer">
-                                        <rect key="frame" x="0.0" y="367" width="320" height="113"/>
+                                        <rect key="frame" x="0.0" y="455" width="320" height="113"/>
                                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                         <subviews>
                                             <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="vHz-dw-oPb" userLabel="GitTip" customClass="LLGitTip">
@@ -229,7 +229,6 @@
                                 <constraints>
                                     <constraint firstAttribute="trailing" secondItem="790-G2-I8g" secondAttribute="trailing" id="2Wb-fS-TFg"/>
                                     <constraint firstAttribute="bottom" secondItem="qp1-nX-o4i" secondAttribute="bottom" constant="225" id="4aN-54-XmH"/>
-                                    <constraint firstItem="L6J-pd-gcp" firstAttribute="top" secondItem="rWM-08-aab" secondAttribute="top" id="7tX-gM-6hA"/>
                                     <constraint firstAttribute="trailing" secondItem="L6J-pd-gcp" secondAttribute="trailing" id="9fV-8e-y3E"/>
                                     <constraint firstItem="L6J-pd-gcp" firstAttribute="leading" secondItem="rWM-08-aab" secondAttribute="leading" id="BcO-0y-Nih"/>
                                     <constraint firstItem="qp1-nX-o4i" firstAttribute="leading" secondItem="rWM-08-aab" secondAttribute="leading" constant="20" symbolic="YES" id="DY1-Ad-Mbi"/>
@@ -243,7 +242,7 @@
                                 </constraints>
                             </view>
                             <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="keyboard-dark.png" translatesAutoresizingMaskIntoConstraints="NO" id="WKq-vl-7Xv" userLabel="Keyboard">
-                                <rect key="frame" x="0.0" y="264" width="320" height="216"/>
+                                <rect key="frame" x="0.0" y="352" width="320" height="216"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                             </imageView>
                         </subviews>
@@ -254,6 +253,7 @@
                             <constraint firstAttribute="trailing" secondItem="rWM-08-aab" secondAttribute="trailing" id="UPP-1n-zIe"/>
                             <constraint firstItem="WKq-vl-7Xv" firstAttribute="leading" secondItem="DOr-Xu-P9q" secondAttribute="leading" id="fGF-fl-Mfx"/>
                             <constraint firstItem="VGz-R0-vMD" firstAttribute="top" secondItem="rWM-08-aab" secondAttribute="bottom" id="fcH-lm-76a"/>
+                            <constraint firstItem="L6J-pd-gcp" firstAttribute="top" secondItem="zp4-4O-wZI" secondAttribute="bottom" id="kNw-eU-W01"/>
                             <constraint firstAttribute="trailing" secondItem="WKq-vl-7Xv" secondAttribute="trailing" id="o32-jm-izi"/>
                             <constraint firstAttribute="top" secondItem="rWM-08-aab" secondAttribute="top" id="xBe-1Q-mz2"/>
                             <constraint firstItem="zp4-4O-wZI" firstAttribute="bottom" secondItem="790-G2-I8g" secondAttribute="top" priority="500" id="y7N-re-Hvm"/>
@@ -311,22 +311,22 @@
                         <viewControllerLayoutGuide type="bottom" id="lXD-AZ-Umi"/>
                     </layoutGuides>
                     <view key="view" contentMode="scaleToFill" id="fkJ-D0-yue">
-                        <rect key="frame" x="0.0" y="0.0" width="320" height="480"/>
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                         <subviews>
                             <imageView userInteractionEnabled="NO" contentMode="center" image="background.png" translatesAutoresizingMaskIntoConstraints="NO" id="Lkg-xn-bce" userLabel="Background">
-                                <rect key="frame" x="0.0" y="0.0" width="320" height="480"/>
+                                <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
                                 <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                             </imageView>
                             <containerView clipsSubviews="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="jDK-5y-QRP" userLabel="Users">
-                                <rect key="frame" x="0.0" y="0.0" width="320" height="480"/>
+                                <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
                                 <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                                 <connections>
                                     <segue destination="S8q-YF-Kt9" kind="embed" identifier="users" id="9AR-TX-BkY"/>
                                 </connections>
                             </containerView>
                             <containerView clipsSubviews="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="cs4-pY-dDU" userLabel="Passwords" customClass="PearlUIView">
-                                <rect key="frame" x="0.0" y="0.0" width="320" height="480"/>
+                                <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                 <userDefinedRuntimeAttributes>
                                     <userDefinedRuntimeAttribute type="boolean" keyPath="ignoreTouches" value="YES"/>
@@ -371,11 +371,11 @@
                         <viewControllerLayoutGuide type="bottom" id="c12-XI-Rv9"/>
                     </layoutGuides>
                     <view key="view" contentMode="scaleToFill" id="MSX-uI-cwS" userLabel="Root" customClass="PearlUIView">
-                        <rect key="frame" x="0.0" y="0.0" width="320" height="480"/>
+                        <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                         <subviews>
                             <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="tI8-OT-LrO" userLabel="Passwords Root" customClass="PearlUIView">
-                                <rect key="frame" x="0.0" y="0.0" width="320" height="480"/>
+                                <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
                                 <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                 <subviews>
                                     <navigationBar contentMode="scaleToFill" translucent="NO" translatesAutoresizingMaskIntoConstraints="NO" id="uuT-jm-2La" userLabel="Navigation" customClass="PearlUINavigationBar">
@@ -393,7 +393,7 @@
                                         </userDefinedRuntimeAttributes>
                                     </navigationBar>
                                     <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="K2e-Gh-7hH" userLabel="Passwords Container">
-                                        <rect key="frame" x="0.0" y="64" width="320" height="416"/>
+                                        <rect key="frame" x="0.0" y="64" width="320" height="504"/>
                                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                                         <subviews>
                                             <searchBar contentMode="redraw" barStyle="black" searchBarStyle="minimal" placeholder="eg. apple.com" showsBookmarkButton="YES" translatesAutoresizingMaskIntoConstraints="NO" id="oAG-Ea-TOI">
@@ -405,7 +405,7 @@
                                                 </connections>
                                             </searchBar>
                                             <collectionView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" minimumZoomScale="0.0" maximumZoomScale="0.0" dataMode="prototypes" translatesAutoresizingMaskIntoConstraints="NO" id="aXw-tn-8Sj" userLabel="Password Collection">
-                                                <rect key="frame" x="0.0" y="44" width="320" height="372"/>
+                                                <rect key="frame" x="0.0" y="44" width="320" height="460"/>
                                                 <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                                                 <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
                                                 <collectionViewFlowLayout key="collectionViewLayout" minimumLineSpacing="10" minimumInteritemSpacing="10" id="Mv1-29-TWx">
@@ -1133,6 +1133,6 @@
     <simulatedMetricsContainer key="defaultSimulatedMetrics">
         <simulatedStatusBarMetrics key="statusBar"/>
         <simulatedOrientationMetrics key="orientation"/>
-        <simulatedScreenMetrics key="destination"/>
+        <simulatedScreenMetrics key="destination" type="retina4"/>
     </simulatedMetricsContainer>
 </document>