I have Excel file which do not have unique key, Will this software transfer my Excel file to iPhone?

Yes, software can transfer the Excel files which do not have unique (primary) key. But for this, in Wireless Database Viewer Plus, when software ask for selection of unique key, you have to select more than one columns which will have unique data combination each row.

Does software send complete database every time?

No, This software only sends only changed records like new/updated/deleted records and not complete database each time.

Is my database secured?

Yes, Data transfer between iPhone side DBViewer Plus and Server application is secured as 128 bit AES is used for encryption.

How to get UDID of iphone?

To get Device ID, connect your device to your Mac/PC and launch iTunes. In iTunes, select your device in the ‘Devices’ section and navigate to the Summary tab. Click on the Serial Number label to reveal the Identifier field and the 40 character UDID. Press Ctrl+C to copy the UDID to your clipboard, and paste it in Device ID and Confirm Device ID field.

Whenever I add/edit/delete record on iphone, in Record view I get Red/Cyan color.

Cyan color indicates that record synchronization is still in progress.Red color indicates that Record has problem while syncing with desktop database. icon on this screen shows information related with record syncing process.