The iPad app Readr can be purchased for US$2.50 per month for 3 months (Normally US$9.99 per month) using the code BLKFRI75 After that time it does auto charge your credit card. You also get a free week.
Being a Black Friday deal I imagine it ends soon.
Supposedly 10000 plus magazines available (multiple countries & languages). I've found it has quite a lot of good US and UK ones. One you have a subscription it's open slather. Even without one you get 20 minutes per month.
Someone pointed out that the Stacksocial offer (same deal, but free) is still going for a few days so a better option.
https://stacksocial.com/sales/three-months-of-readr-for-free
Just noticed the StackSocial code is valid till March 10th 2014 so you could get that with a different email address and use it after the BlackFriday deal finishes. So 6.5 months for US$7.50.
Good deal. Having checked this out before, a lot / majority of main stream magazines are missing, but on the upside there's lots of magazines you'll never see at your local newsagent.