New App Icon for Scan?

Trying to decide on whether to update the app icon for Scan. Here are the factors:
- Scan already has 10 million users in yr 1 from current icon.
- Scan will now also read bar codes (before just QR codes).
- This is what our Scan logo/site looks like: http://scan.me
Would very much appreciate your input. I attached a file which shows the icons at full size and on the actual device.
Thank you.