diff --git a/Signal/src/Storyboard/Main.storyboard b/Signal/src/Storyboard/Main.storyboard
index d6fc0bd7a..cf072a635 100644
--- a/Signal/src/Storyboard/Main.storyboard
+++ b/Signal/src/Storyboard/Main.storyboard
@@ -1,11 +1,11 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12118" systemVersion="16E195" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" colorMatched="YES" initialViewController="tuk-0x-yCb">
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11762" systemVersion="15G1217" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" colorMatched="YES" initialViewController="tuk-0x-yCb">
     <device id="retina4_7" orientation="portrait">
         <adaptation id="fullscreen"/>
     </device>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12086"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11757"/>
         <capability name="Aspect ratio constraints" minToolsVersion="5.1"/>
         <capability name="Constraints to layout margins" minToolsVersion="6.0"/>
         <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
@@ -678,7 +678,7 @@
             <objects>
                 <navigationController storyboardIdentifier="UserInitialViewController" automaticallyAdjustsScrollViewInsets="NO" useStoryboardIdentifierAsRestorationIdentifier="YES" id="tuk-0x-yCb" customClass="SignalsNavigationController" sceneMemberID="viewController">
                     <toolbarItems/>
-                    <navigationBar key="navigationBar" contentMode="scaleToFill" misplaced="YES" id="VNq-cN-pk9">
+                    <navigationBar key="navigationBar" contentMode="scaleToFill" id="VNq-cN-pk9">
                         <rect key="frame" x="0.0" y="0.0" width="320" height="44"/>
                         <autoresizingMask key="autoresizingMask"/>
                         <color key="barTintColor" red="0.082137122750282288" green="0.46843802928924561" blue="0.91112053394317627" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
@@ -788,7 +788,7 @@
         <scene sceneID="nF7-wR-ITu">
             <objects>
                 <navigationController storyboardIdentifier="SettingsNavigationController" id="u7y-N1-6Ba" sceneMemberID="viewController">
-                    <navigationBar key="navigationBar" contentMode="scaleToFill" misplaced="YES" id="OEe-gh-9Ii">
+                    <navigationBar key="navigationBar" contentMode="scaleToFill" id="OEe-gh-9Ii">
                         <rect key="frame" x="0.0" y="0.0" width="375" height="44"/>
                         <autoresizingMask key="autoresizingMask"/>
                     </navigationBar>
@@ -1069,7 +1069,7 @@
                     <connections>
                         <outlet property="aboutLabel" destination="qeN-f1-cIQ" id="kmc-iU-NK5"/>
                         <outlet property="advancedLabel" destination="dkL-Nz-E6H" id="HUw-SB-apQ"/>
-                        <outlet property="blocklistLabel" destination="jQa-vx-tCW" id="m54-NJ-dpu"/>
+                        <outlet property="blockListLabel" destination="jQa-vx-tCW" id="m54-NJ-dpu"/>
                         <outlet property="destroyAccountButton" destination="4Mk-ly-6fq" id="6Xj-Rb-kfF"/>
                         <outlet property="inviteLabel" destination="9FD-M0-WLe" id="TfU-b4-OtN"/>
                         <outlet property="linkedDevicesLabel" destination="hrc-lZ-NeA" id="VkD-E5-2kW"/>
@@ -1181,7 +1181,7 @@
             <objects>
                 <navigationController automaticallyAdjustsScrollViewInsets="NO" id="cZ7-de-SUi" sceneMemberID="viewController">
                     <toolbarItems/>
-                    <navigationBar key="navigationBar" contentMode="scaleToFill" misplaced="YES" translucent="NO" id="gzw-fh-en2">
+                    <navigationBar key="navigationBar" contentMode="scaleToFill" translucent="NO" id="gzw-fh-en2">
                         <rect key="frame" x="0.0" y="0.0" width="320" height="44"/>
                         <autoresizingMask key="autoresizingMask"/>
                         <color key="barTintColor" red="0.082137122750282288" green="0.46843802928924561" blue="0.91112053394317627" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
@@ -1306,11 +1306,11 @@
                         <viewControllerLayoutGuide type="bottom" id="kH6-9L-pzh"/>
                     </layoutGuides>
                     <view key="view" contentMode="scaleToFill" id="P0X-AM-Yjw">
-                        <rect key="frame" x="0.0" y="64" width="375" height="603"/>
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
                             <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="Ukg-om-VX3" userLabel="Group Details">
-                                <rect key="frame" x="0.0" y="0.0" width="375" height="100"/>
+                                <rect key="frame" x="0.0" y="20" width="375" height="100"/>
                                 <subviews>
                                     <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Ul8-NY-i4c">
                                         <rect key="frame" x="8" y="20" width="60" height="60"/>
@@ -1345,7 +1345,7 @@
                                 </constraints>
                             </view>
                             <tableView clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" allowsMultipleSelection="YES" rowHeight="44" sectionHeaderHeight="22" sectionFooterHeight="22" translatesAutoresizingMaskIntoConstraints="NO" id="cFo-AT-Srf">
-                                <rect key="frame" x="0.0" y="108" width="375" height="495"/>
+                                <rect key="frame" x="0.0" y="128" width="375" height="539"/>
                                 <color key="backgroundColor" red="0.94901960780000005" green="0.94901960780000005" blue="0.94901960780000005" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                                 <view key="tableHeaderView" contentMode="scaleToFill" id="ekO-kw-iHV" userLabel="Header View">
                                     <rect key="frame" x="0.0" y="0.0" width="375" height="40"/>
diff --git a/Signal/src/ViewControllers/AddToBlockListViewController.m b/Signal/src/ViewControllers/AddToBlockListViewController.m
index 038fed395..f027edcf7 100644
--- a/Signal/src/ViewControllers/AddToBlockListViewController.m
+++ b/Signal/src/ViewControllers/AddToBlockListViewController.m
@@ -83,8 +83,9 @@ NSString * const kAddToBlockListViewControllerCellIdentifier = @"kAddToBlockList
     _countryNameButton.titleLabel.font = [UIFont ows_mediumFontWithSize:16.f];
     [_countryNameButton setTitleColor:[UIColor blackColor]
                              forState:UIControlStateNormal];
-    [_countryNameButton setTitle:NSLocalizedString(@"REGISTRATION_DEFAULT_COUNTRY_NAME", @"")
-                        forState:UIControlStateNormal];
+    [_countryNameButton
+        setTitle:NSLocalizedString(@"REGISTRATION_DEFAULT_COUNTRY_NAME", @"Label for the country code field")
+        forState:UIControlStateNormal];
     [_countryNameButton addTarget:self
                            action:@selector(showCountryCodeView:)
                  forControlEvents:UIControlEventTouchUpInside];
@@ -116,7 +117,8 @@ NSString * const kAddToBlockListViewControllerCellIdentifier = @"kAddToBlockList
     UILabel *phoneNumberLabel = [UILabel new];
     phoneNumberLabel.font = [UIFont ows_mediumFontWithSize:16.f];
     phoneNumberLabel.textColor = [UIColor blackColor];
-    phoneNumberLabel.text = NSLocalizedString(@"REGISTRATION_PHONENUMBER_BUTTON", @"");
+    phoneNumberLabel.text
+        = NSLocalizedString(@"REGISTRATION_PHONENUMBER_BUTTON", @"Label for the phone number textfield");
     [phoneNumberRow addSubview:phoneNumberLabel];
     [phoneNumberLabel autoPinEdgeToSuperviewEdge:ALEdgeLeft withInset:20.f];
     [phoneNumberLabel autoVCenterInSuperview];
@@ -125,7 +127,8 @@ NSString * const kAddToBlockListViewControllerCellIdentifier = @"kAddToBlockList
     _phoneNumberTextField.font = [UIFont ows_mediumFontWithSize:16.f];
     _phoneNumberTextField.textAlignment = NSTextAlignmentRight;
     _phoneNumberTextField.textColor = [UIColor ows_signalBrandBlueColor];
-    _phoneNumberTextField.placeholder = NSLocalizedString(@"REGISTRATION_ENTERNUMBER_DEFAULT_TEXT", @"");
+    _phoneNumberTextField.placeholder = NSLocalizedString(
+        @"REGISTRATION_ENTERNUMBER_DEFAULT_TEXT", @"Placeholder text for the phone number textfield");
     _phoneNumberTextField.keyboardType = UIKeyboardTypeNumberPad;
     _phoneNumberTextField.delegate = self;
     [_phoneNumberTextField addTarget:self
@@ -206,7 +209,7 @@ NSString * const kAddToBlockListViewControllerCellIdentifier = @"kAddToBlockList
     [_countryCodeButton layoutSubviews];
 }
 
-- (void)setcallingCode:(NSString *)callingCode
+- (void)setCallingCode:(NSString *)callingCode
 {
     _callingCode = callingCode;
 
@@ -233,6 +236,7 @@ NSString * const kAddToBlockListViewControllerCellIdentifier = @"kAddToBlockList
 - (void)tryToBlockPhoneNumber
 {
     if (![self hasValidPhoneNumber]) {
+        OWSAssert(0);
         return;
     }
 
@@ -248,8 +252,7 @@ NSString * const kAddToBlockListViewControllerCellIdentifier = @"kAddToBlockList
                          message:[NSString
                                      stringWithFormat:NSLocalizedString(@"BLOCK_LIST_VIEW_BLOCKED_ALERT_MESSAGE_FORMAT",
                                                           @"The message format of the 'phone number blocked' alert in "
-                                                          @"the block view. It is populated with the blocked phone "
-                                                          @"number."),
+                                                          @"the block view. Embeds {{the blocked phone number}}."),
                                      [parsedPhoneNumber toE164]]
                   preferredStyle:UIAlertControllerStyleAlert];
 
diff --git a/Signal/src/ViewControllers/BlockListViewController.m b/Signal/src/ViewControllers/BlockListViewController.m
index 060eebac7..8365a3e3c 100644
--- a/Signal/src/ViewControllers/BlockListViewController.m
+++ b/Signal/src/ViewControllers/BlockListViewController.m
@@ -10,8 +10,6 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-NSString * const kBlockListViewControllerCellIdentifier = @"kBlockListViewControllerCellIdentifier";
-
 // TODO: We should label phone numbers with contact names where possible.
 @interface BlockListViewController ()
 
@@ -42,10 +40,8 @@ typedef NS_ENUM(NSInteger, BlockListViewControllerSection) {
     _blockingManager = [OWSBlockingManager sharedManager];
     _blockedPhoneNumbers = [_blockingManager blockedPhoneNumbers];
 
-    self.title = NSLocalizedString(@"SETTINGS_BLOCK_LIST_TITLE", @"");
-
-    [self.tableView registerClass:[UITableViewCell class]
-           forCellReuseIdentifier:kBlockListViewControllerCellIdentifier];
+    self.title
+        = NSLocalizedString(@"SETTINGS_BLOCK_LIST_TITLE", @"Label for the block list section of the settings view");
 
     [self addNotificationListeners];
 }
@@ -102,7 +98,7 @@ typedef NS_ENUM(NSInteger, BlockListViewControllerSection) {
 
 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
 {
-    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:kBlockListViewControllerCellIdentifier];
+    UITableViewCell *cell = [UITableViewCell new];
     OWSAssert(cell);
     
     switch (indexPath.section) {
diff --git a/Signal/src/ViewControllers/DebugUITableViewController.h b/Signal/src/ViewControllers/DebugUITableViewController.h
index c29a438ef..fa2412759 100644
--- a/Signal/src/ViewControllers/DebugUITableViewController.h
+++ b/Signal/src/ViewControllers/DebugUITableViewController.h
@@ -4,6 +4,8 @@
 
 #import "OWSTableViewController.h"
 
+NS_ASSUME_NONNULL_BEGIN
+
 @class TSThread;
 
 @interface DebugUITableViewController : OWSTableViewController
@@ -12,3 +14,5 @@
              fromViewController:(UIViewController *)fromViewController;
 
 @end
+
+NS_ASSUME_NONNULL_END
diff --git a/Signal/src/ViewControllers/OWSTableViewController.h b/Signal/src/ViewControllers/OWSTableViewController.h
index 7c73c8401..860c22015 100644
--- a/Signal/src/ViewControllers/OWSTableViewController.h
+++ b/Signal/src/ViewControllers/OWSTableViewController.h
@@ -4,6 +4,8 @@
 
 #import <UIKit/UIKit.h>
 
+NS_ASSUME_NONNULL_BEGIN
+
 @class OWSTableItem;
 @class OWSTableSection;
 
@@ -19,10 +21,9 @@
 
 @interface OWSTableSection : NSObject
 
-@property (nonatomic) NSString *title;
+@property (nonatomic, nullable) NSString *title;
 
-+ (OWSTableSection *)sectionWithTitle:(NSString *)title
-                                items:(NSArray *)items;
++ (OWSTableSection *)sectionWithTitle:(NSString *)title items:(NSArray<OWSTableItem *> *)items;
 
 - (void)addItem:(OWSTableItem *)item;
 
@@ -54,3 +55,5 @@ typedef void (^OWSTableActionBlock)();
 - (void)presentFromViewController:(UIViewController *)fromViewController;
 
 @end
+
+NS_ASSUME_NONNULL_END
diff --git a/Signal/src/ViewControllers/OWSTableViewController.m b/Signal/src/ViewControllers/OWSTableViewController.m
index a93ac7d09..d556a8844 100644
--- a/Signal/src/ViewControllers/OWSTableViewController.m
+++ b/Signal/src/ViewControllers/OWSTableViewController.m
@@ -3,8 +3,6 @@
 //
 
 #import "OWSTableViewController.h"
-//#import "Environment.h"
-//#import "Signal-Swift.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
@@ -18,14 +16,16 @@ NS_ASSUME_NONNULL_BEGIN
 
 @implementation OWSTableContents
 
--(instancetype)init {
+- (instancetype)init
+{
     if (self = [super init]) {
         _sections = [NSMutableArray new];
     }
     return self;
 }
 
-- (void)addSection:(OWSTableSection *)section {
+- (void)addSection:(OWSTableSection *)section
+{
     OWSAssert(section);
     
     [_sections addObject:section];
@@ -45,28 +45,26 @@ NS_ASSUME_NONNULL_BEGIN
 
 @implementation OWSTableSection
 
-+ (OWSTableSection *)sectionWithTitle:(NSString *)title
-                                items:(NSArray *)items {
++ (OWSTableSection *)sectionWithTitle:(NSString *)title items:(NSArray<OWSTableItem *> *)items
+{
     OWSTableSection *section = [OWSTableSection new];
     section.title = title;
     section.items = [items mutableCopy];
     return section;
 }
 
--(instancetype)init {
+- (instancetype)init
+{
     if (self = [super init]) {
         _items = [NSMutableArray new];
     }
     return self;
 }
 
-- (void)addItem:(OWSTableItem *)item {
+- (void)addItem:(OWSTableItem *)item
+{
     OWSAssert(item);
-    
-    if (!_items) {
-        _items = [NSMutableArray new];
-    }
-    
+
     [_items addObject:item];
 }
 
@@ -77,8 +75,8 @@ NS_ASSUME_NONNULL_BEGIN
 @interface OWSTableItem ()
 
 @property (nonatomic) OWSTableItemType itemType;
-@property (nonatomic) NSString *title;
-@property (nonatomic) OWSTableActionBlock actionBlock;
+@property (nonatomic, nullable) NSString *title;
+@property (nonatomic, nullable) OWSTableActionBlock actionBlock;
 
 @end
 
@@ -86,8 +84,8 @@ NS_ASSUME_NONNULL_BEGIN
 
 @implementation OWSTableItem
 
-+ (OWSTableItem *)actionWithTitle:(NSString *)title
-                      actionBlock:(OWSTableActionBlock)actionBlock {
++ (OWSTableItem *)actionWithTitle:(NSString *)title actionBlock:(OWSTableActionBlock)actionBlock
+{
     OWSAssert(title.length > 0);
     
     OWSTableItem *item = [OWSTableItem new];
@@ -105,7 +103,8 @@ NSString * const kOWSTableCellIdentifier = @"kOWSTableCellIdentifier";
 
 @implementation OWSTableViewController
 
-- (void)viewDidLoad {
+- (void)viewDidLoad
+{
     [super viewDidLoad];
     [self.navigationController.navigationBar setTranslucent:NO];
 }
@@ -150,14 +149,16 @@ NSString * const kOWSTableCellIdentifier = @"kOWSTableCellIdentifier";
 
 #pragma mark - Table view data source
 
-- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
+- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
+{
     OWSAssert(self.contents);
 
     OWSAssert(self.contents.sections.count > 0);
     return (NSInteger) self.contents.sections.count;
 }
 
-- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)sectionIndex {
+- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)sectionIndex
+{
     OWSTableSection *section = [self sectionForIndex:sectionIndex];
     OWSAssert(section.items.count > 0);
     return (NSInteger) section.items.count;
@@ -180,7 +181,8 @@ NSString * const kOWSTableCellIdentifier = @"kOWSTableCellIdentifier";
     return cell;
 }
 
-- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
+- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
+{
     [tableView deselectRowAtIndexPath:indexPath animated:YES];
 
     OWSTableItem *item = [self itemForIndexPath:indexPath];
@@ -204,7 +206,8 @@ NSString * const kOWSTableCellIdentifier = @"kOWSTableCellIdentifier";
 
 #pragma mark - Presentation
 
-- (void)presentFromViewController:(UIViewController *)fromViewController {
+- (void)presentFromViewController:(UIViewController *)fromViewController
+{
     OWSAssert(fromViewController);
     
     UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:self];
@@ -217,7 +220,8 @@ NSString * const kOWSTableCellIdentifier = @"kOWSTableCellIdentifier";
                                    completion:nil];
 }
 
-- (void)donePressed:(id)sender {
+- (void)donePressed:(id)sender
+{
     [self dismissViewControllerAnimated:YES completion:nil];
 }
 
diff --git a/Signal/src/ViewControllers/RegistrationViewController.m b/Signal/src/ViewControllers/RegistrationViewController.m
index e5d90cb7e..c15275854 100644
--- a/Signal/src/ViewControllers/RegistrationViewController.m
+++ b/Signal/src/ViewControllers/RegistrationViewController.m
@@ -35,11 +35,14 @@ static NSString *const kCodeSentSegue = @"codeSent";
     [[Environment getCurrent] setSignUpFlowNavigationController:self.navigationController];
 
     _titleLabel.text = NSLocalizedString(@"REGISTRATION_TITLE_LABEL", @"");
-    [_countryNameButton setTitle:NSLocalizedString(@"REGISTRATION_DEFAULT_COUNTRY_NAME", @"")
-                        forState:UIControlStateNormal];
-    _phoneNumberTextField.placeholder = NSLocalizedString(@"REGISTRATION_ENTERNUMBER_DEFAULT_TEXT", @"");
-    [_phoneNumberButton setTitle:NSLocalizedString(@"REGISTRATION_PHONENUMBER_BUTTON", @"")
-                        forState:UIControlStateNormal];
+    [_countryNameButton
+        setTitle:NSLocalizedString(@"REGISTRATION_DEFAULT_COUNTRY_NAME", @"Label for the country code field")
+        forState:UIControlStateNormal];
+    _phoneNumberTextField.placeholder = NSLocalizedString(
+        @"REGISTRATION_ENTERNUMBER_DEFAULT_TEXT", @"Placeholder text for the phone number textfield");
+    [_phoneNumberButton
+        setTitle:NSLocalizedString(@"REGISTRATION_PHONENUMBER_BUTTON", @"Label for the phone number textfield")
+        forState:UIControlStateNormal];
     [_phoneNumberButton.titleLabel setAdjustsFontSizeToFitWidth:YES];
     [_sendCodeButton setTitle:NSLocalizedString(@"REGISTRATION_VERIFY_DEVICE", @"") forState:UIControlStateNormal];
     [_existingUserButton setTitle:NSLocalizedString(@"ALREADY_HAVE_ACCOUNT_BUTTON", @"registration button text")
diff --git a/Signal/src/ViewControllers/SettingsTableViewController.h b/Signal/src/ViewControllers/SettingsTableViewController.h
index 22eb313d2..b5cc92b14 100644
--- a/Signal/src/ViewControllers/SettingsTableViewController.h
+++ b/Signal/src/ViewControllers/SettingsTableViewController.h
@@ -1,9 +1,5 @@
 //
-//  SettingsTableViewController.h
-//  Signal
-//
-//  Created by Dylan Bourgeois on 03/11/14.
-//  Copyright (c) 2014 Open Whisper Systems. All rights reserved.
+//  Copyright (c) 2017 Open Whisper Systems. All rights reserved.
 //
 
 #import <UIKit/UIKit.h>
@@ -19,7 +15,7 @@
 @property (strong, nonatomic) IBOutlet UILabel *linkedDevicesLabel;
 @property (strong, nonatomic) IBOutlet UILabel *advancedLabel;
 @property (strong, nonatomic) IBOutlet UILabel *aboutLabel;
-@property (strong, nonatomic) IBOutlet UILabel *blocklistLabel;
+@property (strong, nonatomic) IBOutlet UILabel *blockListLabel;
 @property (strong, nonatomic) IBOutlet UILabel *inviteLabel;
 @property (strong, nonatomic) IBOutlet UIButton *destroyAccountButton;
 
diff --git a/Signal/src/ViewControllers/SettingsTableViewController.m b/Signal/src/ViewControllers/SettingsTableViewController.m
index 214dcad74..a182bc032 100644
--- a/Signal/src/ViewControllers/SettingsTableViewController.m
+++ b/Signal/src/ViewControllers/SettingsTableViewController.m
@@ -107,7 +107,8 @@ typedef enum {
     self.linkedDevicesLabel.text
         = NSLocalizedString(@"LINKED_DEVICES_TITLE", @"Menu item and navbar title for the device manager");
     self.inviteLabel.text = NSLocalizedString(@"SETTINGS_INVITE_TITLE", @"Settings table view cell label");
-    self.blocklistLabel.text = NSLocalizedString(@"SETTINGS_BLOCK_LIST_TITLE", @"Label for the block list row of the settings view");
+    self.blockListLabel.text
+        = NSLocalizedString(@"SETTINGS_BLOCK_LIST_TITLE", @"Label for the block list section of the settings view");
 
     [self.destroyAccountButton setTitle:NSLocalizedString(@"SETTINGS_DELETE_ACCOUNT_BUTTON", @"")
                                forState:UIControlStateNormal];
diff --git a/Signal/src/ViewControllers/ViewControllerUtils.h b/Signal/src/ViewControllers/ViewControllerUtils.h
index fe334769d..acaea323e 100644
--- a/Signal/src/ViewControllers/ViewControllerUtils.h
+++ b/Signal/src/ViewControllers/ViewControllerUtils.h
@@ -8,8 +8,9 @@
 
 - (instancetype)init NS_UNAVAILABLE;
 
-// This convenience function can be used to reformat a phone number
-// text field as the types, pastes, etc.
+// This convenience function can be used to reformat the contents of
+// a phone number text field as the user modifies its text by typing,
+// pasting, etc.
 + (void)phoneNumberTextField:(UITextField *)textField
     shouldChangeCharactersInRange:(NSRange)range
                 replacementString:(NSString *)insertionText