Desktop version slated for early 2016.<p><a href="https:&#x2F;&#x2F;twitter.com&#x2F;sparkmailapp&#x2F;status&#x2F;673945229221896192" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;sparkmailapp&#x2F;status&#x2F;673945229221896192</a><p>They&#x27;ve shown screenshots of the Mac app in dev.