These are just a few issues discovered opening the app for 5 minutes. I wish you and the product all the best. And I will be happy to try it again later.
But at this point, I just don't see myself paying a subscription for an MVP/alpha product, with so many visible bugs, and not working (or not intuitive) basic features.
- Clicking a button for every message to see images is a weird decision, to be honest. I understand some people are more paranoid. But both Mail.app and Fastmail web client provide features for privacy to hide your IP for loading images. There are I guess some WebKit context menus, which suggest that I can download the image or open the image in a new window, and when I click it - nothing happens.
- You are right, there is a reply button. Just not where I expected it, considering I was expecting the same behavior/view as Mail.app. But even that - another bug / unexpected behavior - the reply email (From) chosen first from the list, but not the same email account that received the email. Say I received an email on support@example.com, and when I click Reply - the From account is selected to myaccount@fastmail.fm.
- I don't see any ability to attach inline images to messages. Drag and drop of the image from Finder to the Compose does not work. I see that I can attach documents to the messages, but don't see the ability to create inline messages.
So at this point. I already wasted a trial period to see that the state of the app in a very early alpha/beta. I would call it alpha because I believe there are many basic features are still missing. And it is definitely beta because some basic features don't even work, like lists don't update when I receive new emails.
I am sorry. It is just too early. I can't try again later in a few months, assuming you will release some updates soon. Which is very disappointing. I will give it another try, when I see it again, maybe mentioned somewhere else.
Really wish you actually had a TestFlight first to build the app to v1 and collect feedback. I do feel like there is a good potential of the app. And despite even that I really hate the subscription models, I went ahead and gave your app a try.