If your contacts aren't appearing in Hiya Spam Blocker, the app likely doesn't have permission to access them.
Note: Hiya only uses your phone's contact list to appropriately handle calls. We do not use or share contact information for any other purpose.
On your Android device, open Settings → Apps → Hiya → Permissions
Tap Contacts and select Allow
On your iPhone, open Settings → Apps → Hiya → Contacts
Tap Full Access
Try restarting your phone after granting permission. If contacts still don't appear, uninstall and reinstall Hiya Spam Blocker — this resets all permissions and prompts you to grant them again.
June 4, 2026 - All versions