Try Sword Art Online: Integral Online (mobile game) if you want another MMORPG. Its really enjoyable for me and anyone can be strong if they put in the time. :)

Pros: HELLA generous to rewards / gifts / items / top - tier characters

Easy to level up.

Lots of rewards/ gifts/ low priced items/ weapons/etc.

Multiplayer

Story

Daily Events

Cons: Frequent Updates (small)

Lots of events to keep up with

Uses lots of battery

Oh, and dont get me wrong, I LOVE Naruto Online, but yeah, it is pretty hard if you dont pour money into it.