The TreeView app follows in the footsteps of Ancestry's mobile app in giving users of TheGenealogist website access to their online tree within their Apple or Android phone or tablet. TreeView does a good job of making it easy to both navigate and update your tree on the go.
Navigating your tree is simple enough using the pedigree view. Most importantly you can edit your tree with facts and images, plus - unlike Ancestry.co.uk - search the website to incorporate directly from within the app itself (subscription required). You can also access your tree while offline.
TreeView is definitely worth investigating.
Use it for: Viewing and updating your family tree online