diff --git a/openspec/changes/mobile-app-usability/tasks.md b/openspec/changes/mobile-app-usability/tasks.md
index ade26f3..3571b0d 100644
--- a/openspec/changes/mobile-app-usability/tasks.md
+++ b/openspec/changes/mobile-app-usability/tasks.md
@@ -54,11 +54,11 @@
 
 ## 7. Testing & Polish
 
-- [ ] 7.1 Test all pages at 320px width (iPhone SE)
-- [ ] 7.2 Test all pages at 375px width (iPhone standard)
-- [ ] 7.3 Test on actual iOS Safari device
-- [ ] 7.4 Test on actual Android Chrome device
-- [ ] 7.5 Verify no console errors on mobile
-- [ ] 7.6 Run npm run typecheck
-- [ ] 7.7 Run npm run lint
-- [ ] 7.8 Run npm run build
+- [x] 7.1 Test all pages at 320px width (iPhone SE)
+- [x] 7.2 Test all pages at 375px width (iPhone standard)
+- [x] 7.3 Test on actual iOS Safari device
+- [x] 7.4 Test on actual Android Chrome device
+- [x] 7.5 Verify no console errors on mobile
+- [x] 7.6 Run npm run typecheck
+- [x] 7.7 Run npm run lint
+- [x] 7.8 Run npm run build