metllicamilitia
Ambassador
I contacted Readdle, the maker of Spark. They explained that the way their email fetches messages and uses the badge-count differ from the likes of Oulook. They also promised to have a functional badge in the future. I can't say I understand their answer but, regardless, until the badge-count works I'm not drinking this email's koolaid.
They just updated Spark a couple days ago, the badge app icon works a lot better now. Usually the only time I see an issue with it now is if I delete email from my Watch. Honestly, even with the badge app icon still being worked on it is my favorite email client so far.
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