Like Fiksu, Tapjoy estimates iOS 8 adoption rate significantly lagging previous OSes

It's not just Fiksu that's tracking the adoption rate of iOS 8.

Mobile monetisation outfit Tapjoy has also been tracking the changes.

Like Fiksu, on day 1 it seen a lower uptake rate than both iOS 7 and iOS 6, perhaps because of the high free space requirements that iOS 8 requires for installation.

18 hours post-launch, across Tapjoy's network of over 200 million unique iOS devices, around 6 percent had upgraded.

Wait and see

That compares with seven hours for iOS 7 to reach 10 percent adoption.

In terms of device segementation, surprisingly iPod touch is leading the charge with 7.7 percent adoption compared to 6.6 percent for iPhones and 4 percent of iPads.

Looking at adoption rates on a per country basis, South Korea is leading with over 14 percent, with the US at 9.4 percent, the UK at 8.5 percent and China at a mere 2 percent

You can compare Tapjoy's numbers with Fiksu's dynamic update, which is 23 hours after launch is showing an iOS 8 adoption rate of 10 percent.

[source: Tapjoy]