From the Gulden Development Team:

iOS Development Update

The upcoming iOS release will feature both technical and user-facing improvements. Our iOS codebase still contained a lot of legacy code and cruft from the original Breadwallet source code from which we forked. Significant improvements have been made in this area which allows us to implement new features at a higher pace in the future, and at the same time improve stability and robustness of the app. On top of this, the upcoming release will feature full iPhone X and iOS 11 support and several usability improvements.