yahoo fantasy sports
I don't know of any accessible app that will access your Yahoo fantasy account. However, recently the
app updated to include a fantasy tracker. You can import your team from either Yahoo or ESPN or just customize players from scratch. So, if nothing else, you can use this to get alerts about your players until we can get Yahoo to be more accessible.
I use ESPN myself and I love the website but I have similar experiences with their app that you seem to have with Yahoo. That being said, ESPN has given their fantasy football app a makeover this year. I'm hoping as we get closer I will find that it's more accessible than last years version. If so, I'll try and do a podcast review of it.
By the way, I've started a league on ESPN this year specifically for blind or visually impaired owners. Chris, if you or anyone else wants to join please let me know. I have a few spots left at the moment.