I'm currently using InDesign to create an online magazine.
Most views are via mobile devices. Is there a better Adobe program/software that I should be using... a fellow colleague has suggested Muse...
await your feedback
Please try the features of What is Adobe Muse? | Adobe Muse CC tutorials
Hope that helps!
It really depends on the use. Neither of those products are the ideal for creating an online Magazine. Especially if you need to be always updating content and articles.
Is this a magazine to be downloaded to devices or just a website in a magazine format?
If it is an actual magazine to be downloaded then InDesign is definitely the way to go. If it is just a website then you can certainly use Muse but Muse is not really the proper tool for that type of site either. To do it properly you will want to use Dreamweaver and build it from scratch with PHP/MySQL. So really Dreamweaver or Muse are your best options.
Muse = Easier to use + harder to maintain the site
Dreamweaver = Harder to use + easier to maintain the site
InDesign = for actual downloadable magazines, not really practical for websites.
Hope that helps. If not can you provide a link to your site or a site similar to what you are trying to do?