On any page tap the black icon mid-bottom then tap 'About', 'Advice' or 'Help'
Advice:
The four top sections (Where am I, Man Overboard, In an emergrency, and Fire, sinking, Illness) are to help when something goes wrong
The remaining sections cover a range of information and useful topics to ensure you carry out your sailing in safety and according to the rules laid down by the river authorities
Information provided includes Navigation Aids, Sound Signals, Flag Signals, Flag Etiquette and a searchable glossary of Boating Terms
Tap whichever section you wish to read; if you are new to boating it will make sense to read some of the Advice sections before your first trip!
About:
Provides a link to email the author alongside copyright, version info, disclaimer and privacy notice; a link to the app support site is also available here
Help:
Provides context-sensitive assistance for the page from which it is opened