What is Auto Sync?

[Note: The Auto Sync feature has been used extensively since its introduction in late 2014. For on-device (offline) validation services with duplicates set to Invalid you are limited to 20,000 values. Contact us if your database exceeds that temporary limit to learn your options. Record-only services and validation services with duplicates set to Valid have no limits.]


With Auto Sync, scans are instantly recorded and queued for uploading every two (2) seconds and validation databases stored on codeREADr’s servers are synced and downloaded to the device every 2 minutes. Syncing is done in the background while the app is open so the user doesn’t have to stop scanning.

Auto Sync

Scans are auto synced if scans get stored on-device because of connectivity issues.


Record On-Device (offline)

All scans are auto synced.

Validate in Real-Time (online) or On-Device (offline)

Scans are auto-uploaded and the updated validation database is auto-downloaded. The synced database is downloaded if it has changed (e.g. new data) or if scans have been uploaded and the service is set to check duplicate scans.

Note to advanced users (developers): Services posting scans to your own servers (see here) can deploy Auto Sync. However, if using a validation service, databases are not synced to the device from your server.

in Services