Comparison Summary
Comparison SummarySigmaOS offers fresher design and user experience than Sidekick, which feels outdated and overrated next to SigmaOS and Arc Browser.
Only use Sidekick if you have a specific old feature you need, but SigmaOS is the clear pick for anything new.
- SigmaOSRecommended
Best alternative browser layout
Best alternative browser layout - Sidekick Browser
Acquired and shut down by Perplexity
Acquired and shut down by Perplexity
Comparison Video
Comparison VideoBest Web Browser? Arc vs Chrome vs Safari vs Brave
Best Web Browser? Arc vs Chrome vs Safari vs Brave
13:23Best Web Browser? Arc vs Chrome vs Safari vs Brave
Best Web Browser? Arc vs Chrome vs Safari vs BraveRecommended Alternatives
Recommended Alternatives- ChatGPT AtlasBest
Best AI Browser for ChatGPT users
Best AI Browser for ChatGPT users
Editor's Verdict
Editor's VerdictSigmaOS actually tries to rethink browser layout and productivity, with fresh, opinionated design choices that stand out even if some features are copied from Arc. Sidekick, on the other hand, feels outdated, its so-called productivity features are now standard everywhere, and its design and user experience lag behind both Arc and SigmaOS.
If you care about a browser that's genuinely pushing new ideas in productivity, SigmaOS is the clear pick. Sidekick just doesn't keep up anymore, and its experience feels stuck in the past.