Nth Key for iOs 
Use your iOs device as part of a Bitcoin multi-signature setup.
Best used with Specter Desktop.
Uses LibWally via a Swift wrapper.
Build
Install dependencies:
brew install gnu-sed
Install Ruby, e.g. using RBenv:
rbenv install `cat .ruby-version`
bundle install
bundle exec pod install --verbose
To preview documentation:
bundle exec jekyll server --incremental --source docs
To get the simulator working directory, export your public key in Settings. The path is printed in the log.
Usage
Download from the App Store and follow the tutorial.