So while it isn't yet clear which or how many of these solutions will be adopted instead of UDID, it is clear that there are alternatives available that should please those on both sides of the debate.

"While this may seem like an uncertain time, it's merely another exciting evolution point on the timeline of the app ecosystem. With cool heads and clear objectives, we're confident the industry will converge on common practices that not only provide a replacement to UDIDs, but accelerate innovation and adoption within the mobile advertising space," Biggs said.