My sister has an iPhone and iPad and has thousands of MP3's she's downloaded from various places throughout the years and wants to place them on her new iDevices, the problem is that she wants to avoid iTunes and refuses to even think about using the program. In other words, she loves Apple hardware and hates the software. Is there any other possible way to transport her stuff over to her devices without the iTunes program? I believe there has to be a way, but I'm having trouble finding a true answer to this question.
She might be able to dodge iTunes by using iCloud, since its whole purpose is to substitute for a desktop machine in acting as your "digital hub" in the Apple-designed ecosystem. The whole idea is that iOS devices will sync media files, contacts, browser bookmarks, and all that fun stuff via iCloud which comes with something like 5GB or 10GB of space for free and then charges some subscription fee if you need more than that.
There's also iTunes Match, which is a $25/year fee and lets you sync all your music to iCloud. The benefit over just using iCloud is that you get a centralized location for up to 25,000 songs. That fee also covers the service where Apple will check your music and give you equivalent iTunes tracks for anything that matches without those songs counting towards the 25K limit. So, if I ripped my own CD of B.B. King's
Live at the Regal, for instance, once I go to iCloud, if Apple already sells that through iTunes, what will sync is their copy (probably with better audio quality, considering
Live at the Regal was one of the first CD's I ripped more than 10 years ago) and the 10 tracks on the disc won't count towards the 25K limit. If you go with iTunes Match, then I think the default iCloud storage space should be more than enough for anything else she wants to sync to your devices.
I'm describing all of this in the abstract because I haven't gone to do much with iCloud yet and have yet to sit down to subscribe to iTunes Match. There is also the problem that you're just going to be dealing with DIFFERENT Apple software other than iTunes. If the issue is that your sister thinks that iTunes sucks, then maybe this solution will make her happy. If it's some conceptual thing about Apple software in general, this solution may not make her happy either.
Hope this helps!