diff --git a/apps/admin/src/lib/featureInterests.test.ts b/apps/admin/src/lib/featureInterests.test.ts
new file mode 100644
index 0000000..f962c77
--- /dev/null
+++ b/apps/admin/src/lib/featureInterests.test.ts
@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'vitest';
+import { featureInterestKey, formatFeatureName, toRecentFeatureInterest } from './featureInterests';
+
+describe('toRecentFeatureInterest', () => {
+    it('preserves the standalone API feature field for dashboard rendering', () => {
+        const interest = toRecentFeatureInterest({
+            user_id: 'user-1',
+            feature: 'better_chat',
+            created_at: '2026-09-05T12:00:00.000Z',
+        });
+
+        expect(interest).toEqual({
+            user_id: 'user-1',
+            feature: 'better_chat',
+            created_at: '2026-09-05T12:00:00.000Z',
+        });
+        expect(formatFeatureName(interest.feature)).toBe('Better Chat');
+        expect(featureInterestKey(interest)).toBe('user-1:better_chat');
+    });
+});
diff --git a/apps/admin/src/lib/featureInterests.ts b/apps/admin/src/lib/featureInterests.ts
new file mode 100644
index 0000000..4e73ecd
--- /dev/null
+++ b/apps/admin/src/lib/featureInterests.ts
@@ -0,0 +1,34 @@
+export interface FeatureInterestRow {
+    user_id: string;
+    feature: string;
+    created_at: string;
+}
+
+export interface RecentFeatureInterest extends FeatureInterestRow {
+    profile?: {
+        id: string;
+        name: string | null;
+        email: string | null;
+        avatar_url: string | null;
+    };
+}
+
+export function toRecentFeatureInterest(row: FeatureInterestRow): RecentFeatureInterest {
+    return {
+        user_id: row.user_id,
+        feature: row.feature,
+        created_at: row.created_at,
+    };
+}
+
+export function featureInterestKey(row: Pick<FeatureInterestRow, 'user_id' | 'feature'>): string {
+    return `${row.user_id}:${row.feature}`;
+}
+
+export function formatFeatureName(feature: string): string {
+    return feature
+        .split('_')
+        .filter(Boolean)
+        .map(part => part.charAt(0).toUpperCase() + part.slice(1))
+        .join(' ');
+}
diff --git a/apps/admin/src/pages/DashboardPage.tsx b/apps/admin/src/pages/DashboardPage.tsx
index 857757e..28b2b41 100644
--- a/apps/admin/src/pages/DashboardPage.tsx
+++ b/apps/admin/src/pages/DashboardPage.tsx
@@ -10,36 +10,22 @@ import { Bar, BarChart, ResponsiveContainer, XAxis, YAxis, Tooltip } from 'recha
 import { format, subDays, startOfDay, endOfDay, formatDistanceToNow } from 'date-fns';
 import { useRealtimeSubscription } from '@/hooks/useRealtimeSubscription';
 import { RealtimeStatusIndicator } from '@/components/RealtimeStatusIndicator';
+import {
+    formatFeatureName,
+    featureInterestKey,
+    toRecentFeatureInterest,
+    type FeatureInterestRow,
+    type RecentFeatureInterest,
+} from '@/lib/featureInterests';
 
 type FeatureInterestChartPoint = { date: string; count: number };
 
-type RecentFeatureInterest = {
-    id: string;
-    user_id: string;
-    feature_name: string;
-    created_at: string;
-    profile?: {
-        id: string;
-        name: string | null;
-        email: string | null;
-        avatar_url: string | null;
-    };
-};
-
 type FeatureInterestCountsRow = {
     feature_name: string;
     opt_in_count: number;
     opt_in_count_last_7_days: number;
 };
 
-function formatFeatureName(featureName: string) {
-    return featureName
-        .split('_')
-        .filter(Boolean)
-        .map(part => part.charAt(0).toUpperCase() + part.slice(1))
-        .join(' ');
-}
-
 export function DashboardPage() {
     const { hasPermission } = useAuth();
     const canViewUsers = hasPermission(PERMISSION_KEYS.VIEW_USERS);
@@ -95,7 +81,7 @@ export function DashboardPage() {
                     ? adminData.from('feature_interests').select('created_at, user_id').gte('created_at', startDate.toISOString()).lte('created_at', endDate.toISOString())
                     : Promise.resolve({ data: [] }),
                 canViewUsers
-                    ? adminData.from('feature_interests').select('id, user_id, feature_name, created_at').order('created_at', { ascending: false }).limit(10)
+                    ? adminData.from<FeatureInterestRow>('feature_interests').select('user_id, feature, created_at').order('created_at', { ascending: false }).limit(10)
                     : Promise.resolve({ data: [] }),
             ]);
 
@@ -158,12 +144,7 @@ export function DashboardPage() {
                 }))
             );
 
-            let recentActivity: RecentFeatureInterest[] = (recentInterests ?? []).map(item => ({
-                id: item.id,
-                user_id: item.user_id,
-                feature_name: item.feature_name,
-                created_at: item.created_at,
-            }));
+            let recentActivity: RecentFeatureInterest[] = (recentInterests ?? []).map(toRecentFeatureInterest);
 
             if (canViewUsers && recentActivity.length > 0) {
                 const userIds = Array.from(new Set(recentActivity.map(item => item.user_id)));
@@ -579,14 +560,14 @@ export function DashboardPage() {
                                                     if (item.profile?.name && item.profile.email) {
                                                         subtitleParts.push(item.profile.email);
                                                     }
-                                                    subtitleParts.push(formatFeatureName(item.feature_name));
+                                                    subtitleParts.push(formatFeatureName(item.feature));
 
                                                     const fallbackChar = (item.profile?.name || item.profile?.email || 'U')
                                                         .charAt(0)
                                                         .toUpperCase();
 
                                                     return (
-                                                        <div key={item.id} className="flex items-center justify-between gap-4 rounded-xl bg-white/5 p-3">
+                                                        <div key={featureInterestKey(item)} className="flex items-center justify-between gap-4 rounded-xl bg-white/5 p-3">
                                                             <div className="flex items-center gap-3 min-w-0">
                                                                 <Avatar className="h-8 w-8">
                                                                     <AvatarImage src={item.profile?.avatar_url || undefined} />