Can i play on iOS?

[don't bye]

Can I buy this game on Steam, and then play on my IPad?

[haharofl]

You should buy it twice. If you do, yes you can play with the same account.

[DanBaba]

On humble bundle page it says that you can sync across all devices for no additional charge just log into your account... trying it now myself.

[TrashE]

Yes, just log in with the same account and the iOS version will sync all the unlocked content and show them as purchased so you don't acciedentally repurchase anything.