The Scottish Boinc Team

The iPad is great for Krunchie, on Firefox. Full control wherever you are.
You could probably use the iPhone for Krunchie as well. For monitoring the farm at least - the screen is probably a bit too small for controlling it.
Keeping up with this forum, other websites too, without having to be at your desktop is pretty handy too.
Sadly there's no crunching to be done on either device, not without some fairly extreme & probably pointless hacking of your OS.
You can also use the phone for phonecalls!

EDIT: Nice gifts BTW!

The Apple support for crunching never went further than PowerPC and X86(-64), they hate the background uploading and downloading, let alone things as BOINCtasks changing things on Apple OS or IOS....and they don't like the 'umbrella' functioning of the BOINC client -you should perhaps have a boinc instance per application/project, if it is possible to run boinc at all.

And that's a shame, really. Even the lowliest iPad AIr, the original 2013 model, has at least an Apple A7 dual-core 64-bit SOC, coupled to a M7 copro and a PowerVR G6430 GPU.
The iPad Air 2 of 2014 had even better specifications: Apple A8 triple-core 64-bit SOC, coupled to a M8 copro and a PowerVR GXA6850 GPU.
The last iPad Air is amazing: Apple A12 six-core 64-bit SOC, coupled to a M12 copro and a Apple G11P GPU.