diff --git a/app/Http/Controllers/TrackerController.php b/app/Http/Controllers/TrackerController.php
index cb63aa9..20bffb6 100644
--- a/app/Http/Controllers/TrackerController.php
+++ b/app/Http/Controllers/TrackerController.php
@@ -34,13 +34,26 @@ class TrackerController extends Controller
         if (!$tripId) return view('no-trip');
 
         $viewMode = $request->input('show', null);
+        $fromCheckin = $request->input('from', null);
+        $toCheckin = $request->input('to', null);
+        
         $tripData = $this->get_trip_data($tripId);
 
+        if ($fromCheckin) {
+            $tripData->checkins = array_filter($tripData->checkins, function($key) use ($fromCheckin) { return $key >= $fromCheckin; }, ARRAY_FILTER_USE_KEY);
+        }
+
+        if ($toCheckin) {
+            $tripData->checkins = array_filter($tripData->checkins, function($key) use ($toCheckin) { return $key <= $toCheckin; }, ARRAY_FILTER_USE_KEY);
+        }
+
         return view(
             'tracker', 
             [
                 'trip' => $tripData, 
-                'showAllCheckins' => ($viewMode === 'all')
+                'showAllCheckins' => ($viewMode === 'all'),
+                'fromCheckin' => $fromCheckin,
+                'toCheckin' => $toCheckin
             ]
         );
     }
diff --git a/app/Mail/Digest.php b/app/Mail/Digest.php
index 4de5749..bfaf608 100644
--- a/app/Mail/Digest.php
+++ b/app/Mail/Digest.php
@@ -55,6 +55,9 @@ class Digest extends Mailable
         case 'weekly':
             $cutoffDateTime->modify('-1 week');
             break;
+        case 'fortnightly':
+            $cutoffDateTime->modify('-2 weeks');
+            break;
         case 'monthly':
             $cutoffDateTime->modify('-1 month');
             break;
diff --git a/resources/views/emails/digest.blade.php b/resources/views/emails/digest.blade.php
index 131247d..166f215 100644
--- a/resources/views/emails/digest.blade.php
+++ b/resources/views/emails/digest.blade.php
@@ -37,21 +37,25 @@
 <p>View the tracker <a href="https://track.bengoldsworthy.net">here.</a></p>
 <hr>
 <h2>Checkins</h2>
-<ol>
-@foreach($checkins as $checkin)
-    <li>
-        <details class="checkin" id="{{ $checkin->id }}">
-            <summary class="checkin__summary">
-                <h3 class="checkin__title">{!! $checkin->title ?? "<i>Untitled</i>" !!}</h3>
-                <p class="checkin__meta">{!! render_date_difference($checkin->date) !!}</p>
-            </summary>
-            @if($checkin->note)
-            {!! $checkin->note !!}
-            @endif
-            @if($checkin->image_url)
-            <img class="popup__image" loading="lazy" src="{{ $checkin->image_url }}">
-            @endif
-        </details>
-    </li>
-@endforeach
-</ol>
+@if($checkins)
+    <ol>
+    @foreach($checkins as $checkin)
+        <li>
+            <details class="checkin" id="{{ $checkin->id }}">
+                <summary class="checkin__summary">
+                    <h3 class="checkin__title">{!! $checkin->title ?? "<i>Untitled</i>" !!}</h3>
+                    <p class="checkin__meta">{!! render_date_difference($checkin->date) !!}</p>
+                </summary>
+                @if($checkin->note)
+                {!! $checkin->note !!}
+                @endif
+                @if($checkin->image_url)
+                <img class="popup__image" loading="lazy" src="{{ $checkin->image_url }}">
+                @endif
+            </details>
+        </li>
+    @endforeach
+    </ol>
+@else
+    <p>No new checkins</p>
+@endif
diff --git a/resources/views/tracker.blade.php b/resources/views/tracker.blade.php
index 5b095b0..8eb518f 100644
--- a/resources/views/tracker.blade.php
+++ b/resources/views/tracker.blade.php
@@ -31,8 +31,8 @@
             </section>
             <section id="checkinList">
                 <h2 class="section__title">@if ($showAllCheckins) Check-ins @else Recent Check-ins @endif</h2>
-                <ol start="{{ count($trip->checkins) }}" reversed>
-                @if($showAllCheckins)
+                <ol start="{{ $toCheckin ?? count($trip->checkins) }}" reversed>
+                @if($showAllCheckins || $toCheckin || $fromCheckin)
                     @php $checkinsList = array_reverse($trip->checkins) @endphp
                 @else
                     @php $checkinsList = array_slice(array_reverse($trip->checkins), 0, 10) @endphp