In the latest version (v1.3.0) of the Bigin iOS app, we have brought in support to access the emails related to a record from within the app. You can now view the related email section within Contacts, Companies and Deals module records.
You can send out emails right from the app and also make use of templates and rich text editor when composing emails in the Contacts and Deals module.
You can add attachments to the emails and also preview the email content from within the app.
I have attached screenshots covering the feature below for your reference:
Do try out the feature and share your feedback in the comments section!