I'm not sure about the UI of the menu... the folders make it look kind of old school. I know I'm being picky, because I'm liking the rest of the design, but I'm still trying to find a proper Mailbox replacement... sigh
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@melissamonteee I've been using Boxer and Spark, for various reasons, and trying others, including this one. I've deleted this one already, though.
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@melissamonteee Agreed. It looks like something that should have hit the market five years ago.
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You should spend some time on the UI. It doesn't feel as good as it could be. If you can make it happen that all the features are in with a smooth, minimalistic but elegant design, you can attract more users who spend more time on the app.