IOS-----------About Udid

Recent review of the Friends League SDK Update log: (the normal upgrade of the device system will not change openudid)

Apple's refusal to collect Udid app Store on May 1, 2013 began. To adapt to Apple's policy, the Openudid SDK for the league's statistical analysis iOS platform is available only on April 23, 2013. The Openudid version of the SDK uses Openudid as a statistical standard with MAC address statistics. At the same time, we have an on-line server-side solution to avoid demographic impact when switching the SDK from the Udid version to the Openudid version.

When it comes to Udid and Openudid, what is the difference between the two?

Recently iOS7 began to ban the Udid, do not allow the app to randomly access the player's Udid information, to prevent the use of illegal purposes, such as advertising analysis, hackers steal credit cards.
The difference between Udid and Openudid

• The udid of each iOS device is unique and will never change;
• The openudid for each iOS device is generated by the first app with the Openudid SDK package, and if you completely remove all apps with the Openudid SDK package (such as a recovery system, etc.), Openudid will regenerate and will be different from the previous values. equivalent to new equipment;

is enough to replace

• Normal iOS device users will not be OK to recover the system or erase the system, so the general Openudid value is not changed;
• When the iOS system upgrades, will have a big impact, after all, more than 95% of iOS device users will choose to upgrade to the latest system;

Whether the replacement is enough to see what you need for udid, if the requirements can not change, that Openudid may still not meet your needs!

IOS-----------About Udid