I don't know if you know, but there is a Apple Academy Developer, and i participated of this between 2015 and 2016, here in Brazil. We went to WWDC and to some apple conferences.
There, i learned about iOS developing, design and entrepreneurship concepts.
Over the years, i've worked in several projects, legacy or new ones, swift or objective-c, with test quality.
In these projects, i worked with several kinds of architetures: MVC, MVP, MVVM, VIPER, with coordinator or not. In your case, is not necessary know a lot about it, because is only a feature.
Although i'm new one here, i have experiences with some kind of projects and i'd like to continuous working in different projects around the world.
---
About the project
We only need to format a list of items to set message body, is it not a template html, right?
It is just a logical feature, i can do it functional and quality
It could be done in about 4 days, 1 day to get the project context, 1 day to do, 1 day to be testable.
---