A free program for iPhone, by Viz Media iOS.
This app offers all the manga series that you can find online, from the publisher Shonen Jump. There are several different series that you can read, ranging from best-selling titles and so much more!
You can browse all the series in the app, as well as your favorites and the ones you’re into right now. You can also download them to read them offline.
You can even see how many chapters you’re currently reading and how far you are in the series.
And if you want to keep track of the latest chapters, you can easily find out when the next chapter is out and when you can read it.