diff --git a/app/Console/Commands/SpeedtestCommand.php b/app/Console/Commands/SpeedtestCommand.php
index d0015d73..e0aaea56 100644
--- a/app/Console/Commands/SpeedtestCommand.php
+++ b/app/Console/Commands/SpeedtestCommand.php
@@ -32,9 +32,9 @@ class SpeedtestCommand extends Command
     }
 
     /**
-     * Execute the console command.
+     * Runs a speedtest synchroonously and displays the results..
      *
-     * @return mixed
+     * @return null
      */
     public function handle()
     {
diff --git a/app/Console/Commands/SpeedtestLatestCommand.php b/app/Console/Commands/SpeedtestLatestCommand.php
index 0f3b2587..c96eacc6 100644
--- a/app/Console/Commands/SpeedtestLatestCommand.php
+++ b/app/Console/Commands/SpeedtestLatestCommand.php
@@ -33,9 +33,9 @@ class SpeedtestLatestCommand extends Command
     }
 
     /**
-     * Execute the console command.
+     * Prints the latest speedtest values.
      *
-     * @return mixed
+     * @return null
      */
     public function handle()
     {
diff --git a/app/Helpers/BackupHelper.php b/app/Helpers/BackupHelper.php
index b62beaee..49708421 100644
--- a/app/Helpers/BackupHelper.php
+++ b/app/Helpers/BackupHelper.php
@@ -9,7 +9,14 @@ use Illuminate\Support\Facades\Log;
 use Illuminate\Support\Facades\Storage;
 
 class BackupHelper {
-    public static function backup($format = 'json')
+
+    /**
+     * Generates a backup of all speedtests.
+     *
+     * @param string    $format json|csv
+     * @return string   $name   Returns the filename of the backup.
+     */
+    public static function backup(String $format = 'json')
     {
         $timestamp = new DateTime();
         $timestamp = $timestamp->format('Y-m-d_H:i:s');
@@ -43,6 +50,13 @@ class BackupHelper {
         return $name;
     }
 
+    /**
+     * Restore data from a backup in CSV or JSON format
+     *
+     * @param   array|string    $array  Backup data
+     * @param   string          $format json|csv
+     * @return  boolean
+     */
     public static function restore($array, $format)
     {
         if($format == 'json') {
diff --git a/app/Helpers/SettingsHelper.php b/app/Helpers/SettingsHelper.php
index ad79d859..3c3df623 100644
--- a/app/Helpers/SettingsHelper.php
+++ b/app/Helpers/SettingsHelper.php
@@ -5,6 +5,13 @@ namespace App\Helpers;
 use App\Setting;
 
 class SettingsHelper {
+
+    /**
+     * Get a Setting object by name
+     *
+     * @param   String                  $name   The name field in the setting table
+     * @return  \App\Setting|boolean    $name   The Setting object. Returns false if no mathcing obj.
+     */
     public static function get(String $name)
     {
         $name = Setting::where('name', $name)->get();
@@ -19,6 +26,13 @@ class SettingsHelper {
         }
     }
 
+    /**
+     * Create / update value for Setting object.
+     *
+     * @param   String  $name   Name of setting
+     * @param   String  $value  Value of setting
+     * @return  \App\Setting
+     */
     public static function set(String $name, String $value)
     {
         $setting = SettingsHelper::get($name);
@@ -36,6 +50,11 @@ class SettingsHelper {
         return $setting;
     }
 
+    /**
+     * Get the app's base path
+     *
+     * @return string
+     */
     public static function getBase()
     {
         $base = env('BASE_PATH', '/');
diff --git a/app/Helpers/SpeedtestHelper.php b/app/Helpers/SpeedtestHelper.php
index 5a1f18a2..0697148b 100644
--- a/app/Helpers/SpeedtestHelper.php
+++ b/app/Helpers/SpeedtestHelper.php
@@ -13,6 +13,13 @@ use JsonException;
 use SimpleXMLElement;
 
 class SpeedtestHelper {
+
+    /**
+     * Runs/processes speedtest output to created a Speedtest object
+     *
+     * @param   boolean|string  $output If false, new speedtest runs. If anything else, will try to parse as JSON for speedtest results.
+     * @return \App\Speedtest|boolean
+     */
     public static function runSpeedtest($output = false)
     {
         if($output === false) {
@@ -36,6 +43,11 @@ class SpeedtestHelper {
         return (isset($test)) ? $test : false;
     }
 
+    /**
+     * Gets the output of executing speedtest binary.
+     *
+     * @return boolean|string
+     */
     public static function output()
     {
         $server = SettingsHelper::get('server')['value'];
@@ -54,10 +66,21 @@ class SpeedtestHelper {
         return shell_exec($binPath . ' -f json');
     }
 
+    /**
+     * Converts bytes/s to Mbps
+     *
+     * @param   int|float   $bytes
+     * @return int|float
+     */
     public static function convert($bytes) {
         return ( $bytes * 8 ) / 1000000;
     }
 
+    /**
+     * Returns the latest speedtest object.
+     *
+     * @return boolean|\App\Speedtest
+     */
     public static function latest()
     {
         $data = Speedtest::latest()->get();
@@ -69,6 +92,12 @@ class SpeedtestHelper {
         return $data->first();
     }
 
+    /**
+     * Parses network speeds and return converted to Mbps
+     *
+     * @param   array  $input
+     * @return  array
+     */
     public static function parseUnits($input)
     {
         $input = explode(' ', $input);
diff --git a/app/Helpers/UpdateHelper.php b/app/Helpers/UpdateHelper.php
index 1a39b23d..d14cc551 100644
--- a/app/Helpers/UpdateHelper.php
+++ b/app/Helpers/UpdateHelper.php
@@ -10,10 +10,39 @@ use RecursiveIteratorIterator;
 use ZipArchive;
 
 class UpdateHelper {
+    /**
+     * URL of updates
+     *
+     * @var string
+     */
     public $url;
+
+    /**
+     * Current app version number
+     *
+     * @var string
+     */
     public $currentVersion;
+
+    /**
+     * Username of GitHub repo
+     *
+     * @var string
+     */
     public $user;
+
+    /**
+     * Name of GitHub repo
+     *
+     * @var string
+     */
     public $repo;
+
+    /**
+     * Branch of GitHub repo
+     *
+     * @var string
+     */
     public $branch;
 
     function __construct() {
@@ -25,6 +54,11 @@ class UpdateHelper {
         $this->download = null;
     }
 
+    /**
+     * Returns data on new version available
+     *
+     * @return  boolean|array   false|[ version, changelog ]
+     */
     public function check()
     {
         Log::info('Checking for new version');
@@ -50,6 +84,11 @@ class UpdateHelper {
         }
     }
 
+    /**
+     * Gets the latest version number from GitHub
+     *
+     * @return  array   [ repo, branch, version ]
+     */
     public function checkLatestVersion()
     {
         $url = 'https://raw.githubusercontent.com/'
@@ -78,6 +117,11 @@ class UpdateHelper {
         ];
     }
 
+    /**
+     * Gets the latest changelog from GitHub
+     *
+     * @return  array
+     */
     public function getChangelog()
     {
         $url = 'https://raw.githubusercontent.com/'
@@ -97,6 +141,11 @@ class UpdateHelper {
         return $changelog;
     }
 
+    /**
+     * Downloads the latest version from GitHub
+     *
+     * @return  boolean|Exception
+     */
     public function downloadLatest()
     {
         Log::info('Downloading the latest version from GitHub');
@@ -121,6 +170,11 @@ class UpdateHelper {
         }
     }
 
+    /**
+     * Extracts zip archive from update
+     *
+     * @return  boolean
+     */
     public function extractFiles()
     {
         Log::info('Extracting the update');
@@ -137,6 +191,11 @@ class UpdateHelper {
         }
     }
 
+    /**
+     * Replace existing files with newly downloaded files
+     *
+     * @return  void
+     */
     public function updateFiles()
     {
         Log::info('Applying update');
@@ -151,6 +210,14 @@ class UpdateHelper {
         Log::info('Successfully applied update');
     }
 
+    /**
+     * Deletes default templates from updated files.
+     * This is for things like .env so that user specified files are not
+     * overwritten.
+     *
+     * @param   string  $path
+     * @return  void
+     */
     private function deleteExcluded($path)
     {
         Log::info('Deleting excluded items from update directory');
@@ -172,6 +239,11 @@ class UpdateHelper {
         Log::info('Excluded items deleted from update directory');
     }
 
+    /**
+     * Creates a ZIP backup of current installation
+     *
+     * @return  void
+     */
     private function backupCurrent()
     {
         Log::info('Backing up current installation');
@@ -209,6 +281,11 @@ class UpdateHelper {
         Log::info('Backup created at: ' . $backupZip);
     }
 
+    /**
+     * Move updated files into server dir.
+     *
+     * @return  void
+     */
     private function moveFiles()
     {
             $new = array_filter(glob('/tmp/'.$this->repo.'-update/*'), 'is_dir');
@@ -242,6 +319,11 @@ class UpdateHelper {
 
     }
 
+    /**
+     * Make a copy of excluded, user customised files
+     *
+     * @return  void
+     */
     private function tempStoreExcludedFiles()
     {
         Log::info('Temporarily moving exluded files from root directory');
@@ -263,6 +345,11 @@ class UpdateHelper {
         }
     }
 
+    /**
+     * Restore user cusotmised files from the copy
+     *
+     * @return  void
+     */
     private function restoreExcludedFiles()
     {
         Log::info('Restoring exluded files to root directory');
@@ -284,6 +371,11 @@ class UpdateHelper {
         }
     }
 
+    /**
+     * Delete update files from download dir.
+     *
+     * @return  void
+     */
     private function clearup()
     {
         try {
diff --git a/app/Http/Controllers/BackupController.php b/app/Http/Controllers/BackupController.php
index 634a6c80..0354151e 100644
--- a/app/Http/Controllers/BackupController.php
+++ b/app/Http/Controllers/BackupController.php
@@ -10,6 +10,13 @@ use Illuminate\Support\Facades\Validator;
 
 class BackupController extends Controller
 {
+
+    /**
+     * Get backup of speedtests
+     *
+     * @param   Request $request
+     * @return  file
+     */
     public function backup(Request $request)
     {
         $validator = Validator::make($request->all(), [ 'format' => 'in:json,csv' ]);
@@ -25,6 +32,12 @@ class BackupController extends Controller
         return Storage::disk('local')->download($filename);
     }
 
+    /**
+     * Retore from a backup
+     *
+     * @param   Request $request
+     * @return  Response
+     */
     public function restore(Request $request)
     {
         $rule = [
diff --git a/app/Http/Controllers/SettingsController.php b/app/Http/Controllers/SettingsController.php
index 5c010eae..b6bb4234 100644
--- a/app/Http/Controllers/SettingsController.php
+++ b/app/Http/Controllers/SettingsController.php
@@ -10,16 +10,34 @@ use Illuminate\Support\Facades\Validator;
 
 class SettingsController extends Controller
 {
+
+    /**
+     * Return all settings
+     *
+     * @return  array
+     */
     public function index()
     {
         return Setting::get()->keyBy('name');
     }
 
+    /**
+     * Get setting by id
+     *
+     * @param   Setting $setting
+     * @return  Setting
+     */
     public function get(Setting $setting)
     {
         return $setting;
     }
 
+    /**
+     * Store/update a setting
+     *
+     * @param   Request $request
+     * @return  Response
+     */
     public function store(Request $request)
     {
         $rule = [
@@ -49,6 +67,11 @@ class SettingsController extends Controller
         ], 200);
     }
 
+    /**
+     * Returns instance config
+     *
+     * @return  array
+     */
     public function config()
     {
 
diff --git a/app/Http/Controllers/SpeedtestController.php b/app/Http/Controllers/SpeedtestController.php
index e63f782e..41bab815 100644
--- a/app/Http/Controllers/SpeedtestController.php
+++ b/app/Http/Controllers/SpeedtestController.php
@@ -13,6 +13,12 @@ use Illuminate\Support\Facades\Validator;
 
 class SpeedtestController extends Controller
 {
+
+    /**
+     * Returns paginated list of speedtests
+     *
+     * @return  Response
+     */
     public function index()
     {
         $data = Speedtest::orderBy('created_at', 'desc')
@@ -24,6 +30,12 @@ class SpeedtestController extends Controller
         ], 200);
     }
 
+    /**
+     * Returns speedtest going back 'x' days
+     *
+     * @param   int     $days
+     * @return  void
+     */
     public function time($days)
     {
         $rule = [
@@ -50,6 +62,11 @@ class SpeedtestController extends Controller
         ], 200);
     }
 
+    /**
+     * Return latest speedtest
+     *
+     * @return  Response
+     */
     public function latest()
     {
         $data = SpeedtestHelper::latest();
@@ -73,6 +90,11 @@ class SpeedtestController extends Controller
         }
     }
 
+    /**
+     * Queue a new speedtest
+     *
+     * @return Response
+     */
     public function run()
     {
         try {
diff --git a/app/Http/Controllers/UpdateController.php b/app/Http/Controllers/UpdateController.php
index b5c6ad4f..ed8bbe31 100644
--- a/app/Http/Controllers/UpdateController.php
+++ b/app/Http/Controllers/UpdateController.php
@@ -8,6 +8,12 @@ use Illuminate\Http\Request;
 
 class UpdateController extends Controller
 {
+
+    /**
+     * Check for new update
+     *
+     * @return  Response
+     */
     public function checkForUpdate()
     {
         return response()->json([
@@ -16,6 +22,11 @@ class UpdateController extends Controller
         ], 200);
     }
 
+    /**
+     * Download new update
+     *
+     * @return  Response
+     */
     public function downloadUpdate()
     {
         $dl = Updater::downloadLatest();
@@ -33,6 +44,11 @@ class UpdateController extends Controller
         }
     }
 
+    /**
+     * Trigger update extraction
+     *
+     * @return  Response
+     */
     public function extractUpdate()
     {
         $ex = Updater::extractFiles();
@@ -50,6 +66,11 @@ class UpdateController extends Controller
         }
     }
 
+    /**
+     * Trigger update file move
+     *
+     * @return  Response
+     */
     public function moveUpdate()
     {
         $cp = Updater::updateFiles();
@@ -60,6 +81,11 @@ class UpdateController extends Controller
         ], 200);
     }
 
+    /**
+     * Get local changelog
+     *
+     * @return  Response
+     */
     public function changelog()
     {
         $url = base_path() . '/changelog.json';
diff --git a/app/Jobs/SpeedtestJob.php b/app/Jobs/SpeedtestJob.php
index 0682f61b..ecae55ef 100644
--- a/app/Jobs/SpeedtestJob.php
+++ b/app/Jobs/SpeedtestJob.php
@@ -25,9 +25,9 @@ class SpeedtestJob implements ShouldQueue
     }
 
     /**
-     * Execute the job.
+     * Runs a speedtest
      *
-     * @return void
+     * @return \App\Speedtest
      */
     public function handle()
     {
diff --git a/app/Listeners/SpeedtestCompleteListener.php b/app/Listeners/SpeedtestCompleteListener.php
index fe7a1728..6155c4b0 100644
--- a/app/Listeners/SpeedtestCompleteListener.php
+++ b/app/Listeners/SpeedtestCompleteListener.php
@@ -22,7 +22,7 @@ class SpeedtestCompleteListener
     }
 
     /**
-     * Handle the event.
+     * Handle what to do after speedtest completes
      *
      * @param  object  $event
      * @return void
diff --git a/app/Notifications/SpeedtestComplete.php b/app/Notifications/SpeedtestComplete.php
index 4771d35e..a4e542b9 100644
--- a/app/Notifications/SpeedtestComplete.php
+++ b/app/Notifications/SpeedtestComplete.php
@@ -34,6 +34,12 @@ class SpeedtestComplete extends Notification
         return ['slack'];
     }
 
+    /**
+     * Format slack notification
+     *
+     * @param   mixed   $notifiable
+     * @return  SlackMessage
+     */
     public function toSlack($notifiable)
     {
         $speedtest = $this->speedtest;
diff --git a/app/Rules/Cron.php b/app/Rules/Cron.php
index 6de599aa..f7547a57 100644
--- a/app/Rules/Cron.php
+++ b/app/Rules/Cron.php
@@ -18,7 +18,7 @@ class Cron implements Rule
     }
 
     /**
-     * Determine if the validation rule passes.
+     * Determine if the value is a valid CRON expression
      *
      * @param  string  $attribute
      * @param  mixed  $value
diff --git a/app/User.php b/app/User.php
index ee0e14cc..c9ad0f1c 100644
--- a/app/User.php
+++ b/app/User.php
@@ -75,6 +75,11 @@ class User extends Authenticatable implements JWTSubject
         return $this->hasOne('\App\Auth\EmailVerification');
     }
 
+    /**
+     * Returns a user's login sessions
+     *
+     * @return  array
+     */
     public function sessions()
     {
         return $this->hasMany('\App\Auth\LoginSession');