Here's how you can download the Marvel War of Heroes app free for Android devices.
1. Go to the Google Play page for the free app Marvel War of Heroes.
2. Tap the Install button.
Here's a description of Marvel War of Heroes:
"Hydra and the world’s most dangerous Super Villains are using the mysterious iso-8 to tip the balance of power in their favor. As an Agent for S.H.I.E.L.D. it is up to you to assemble a team of Super Heroes, unravel the mystery of iso-8 and battle the most powerful group of Super Villains ever assembled."