Slack for Android updated with much faster navigation, emoji support, more
Slack, the workplace communication service that has taken the corporate communications space by storm, has released what is says is a “better, faster, and all around Android-ier” Slack app for Android, rewritten from the ground up.
Context & Ripple Effects
This 2015 rewrite is the opening move in what the related coverage shows is a decade-long cadence of Slack rebuilding its clients rather than incrementally patching them: faster navigation and emoji support here, Calls rolled out beyond invite-only across desktop and mobile a year later, search UI work in 2018, and a claimed 33% launch speedup on its Electron desktop app by mid-2019 (desktop performance push).
The pattern culminates later in structural overhauls rather than speed fixes — the 2020 navigation bar and collapsible sidebar redesign and the 2023 Home/sidebar/unified-inbox rebuild that explicitly borrowed a DMs layout similar to Teams'. The ground-up Android rewrite matters because it establishes platform-native performance, not feature count, as Slack's stated differentiator from the start.
First-order effects
- Android users immediately get faster navigation and native-feeling emoji support in a client rewritten from scratch, closing the gap with the iOS and desktop apps Slack had prioritized earlier.
Second-order effects
- Performance claims become Slack's marketing currency across platforms — the same framing resurfaces four years later when it pitches the desktop app's 33% faster launches and 50% lower RAM use — pressuring rivals like Microsoft's Teams, whose inbox-style layout Slack eventually adopts in its own 2023 redesign, to compete on client responsiveness.
Third-order effects
- If the cadence holds, workplace chat clients converge structurally — sidebar, unified inbox, thread-centric navigation — leaving differentiation to speed and integration depth rather than layout, which is where Slack's repeated rewrites keep pointing.
The trend: Slack treats its client apps as periodically rewritten surfaces rather than maintained codebases, with each overhaul trading accumulated design for platform-native speed.