This Week in Free Comics (29/04/14) - 'Battle of the Atom' and 'Arms of the Octopus'

Marvel Unlimited

• X-Men: Battle of the Atom #2 (Part 10)
• Thor: Crown of Fools #1 - A MCU story to tie in with The Dark World, also reprinting a recoloured version of Simonson's Thor #344.
• Superior Spider-Man Team-Up Special #1 (The Arms of the Octopus Part Three)

Overall, we have a number of partially completed series:

Battle of the Atom

• X-Men: Battle of the Atom #1 (Part 1)
• All-New X-Men #16 (Part 2)
• X-Men: Battle of the Atom #2 (Part 10)

The Arms of the Octopus

• Indestructible Hulk Special #1 (Part 2)
• Superior Spider-Man Team-Up Special #1 (Part 3)

Infinity

• Mighty Avengers #1
• Nova #8
• Superior Spider-Man Team-Up #3
• Thunderbolts #17
• Infinity: The Hunt #1
• Infinity: The Heist #1

Superior Spider-Man Team-Up #3 and #5

Comixology 

• The Amazing Spider-Man #546
• The Amazing Spider-Man #700.1
• The Avengers: Heroes Welcome #1
• Avenging Spider-Man #1
• Ultimate Spider-Man #1

Comixology have also issued $5 free credit to anyone who has previously bought comics on the app, in light of the changes to their iTunes and Android app (they no longer accept iTunes or Google Play Credit.) Pretty good, especially for 99c sales where the credit divides (just about) equally. (The credit expires on 25th May.)