Clients complain about iOS 8.0

[SEOPTI]

Mosts of the time adsense will not appear at all on the site.

Check your stats in analytics, with iOS 7.0 - 7.2 you will probably see 100% better CTR than with 8.0+
Be sure to use minimal-ui in your viewport.

[netmeg]

I dunno; the ads show up fine on my iPhone 6 Plus.

[Mentat]

Yes, "minimal-ui" is not supported on ios 8, but the drop on clicks means that those clicks were fake.