This was once the greatest app out there for an iOS device. It was able to collect and support all the formats I used - Tab Pro, Guitar Pro, and text tabs.
However, a few years ago, it became brutally painful to leverage the native browser for Ultimate-Guitar.com website - which is where just about every guitarist gets their tabs. Not sure what the deal was between Agile and UG, but it wasnt good. Now it takes forever and no-one seems to want to fix it.
It think this is more of a political/$$ problem than anything else (Im not going into the politics of Copyrights or anything), but its made a great app almost useless unless you want to use their library and pay-as-you-play.
Its too bad. If, however, youre behind your laptop/desktop, you can easily get all the tabs from the UG site directly from your browser and download them to your iOS device. I just wish I could use this on my iOS standalone.
Just remember to download what you need before you leave the house....
KFC68 about TabToolkit, v2.0.7