Stream vs Grammarly

Stream (Build scalable in-app chat, feeds, and live video with AI moderation capabilities in hours, not weeks.) and Grammarly (Millions of users rely on Grammarly's AI-powered products to make their messages, documents, and social media posts clear, mistake-free, and impactful.) both appear on the Smoower Developer Ecosystem Index.

Stream (rank #317) holds a modest lead over Grammarly (rank #602) on the overall Smoower ecosystem score (44 vs 34). The gap of 10 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Stream is clearly ahead of Grammarly. On education (docs, guides and learning material for developers), Grammarly is slightly ahead of Stream. On community (issue response, PR reviews and discussion health), Stream is clearly ahead of Grammarly. On reach (how visible the ecosystem is beyond its own repos), Grammarly is ahead of Stream. On momentum (release cadence and how fast the ecosystem moves), Stream is clearly ahead of Grammarly.

Stream carries 35,664 GitHub stars across 487 public repos, with 84 repositories active in the last 90 days and 44 external contributors on record. Grammarly shows 4,355 stars across 23 public repos, 0 active in the last 90 days and 0 external contributors. The star gap on its own does not decide the comparison, but Stream's footprint is roughly 8.2x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Stream is the stronger read for anyone weighting momentum. Grammarly looks better where reach is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.