Grammarly vs SignNow

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.) and SignNow (SignNow e-signature API - send, sign & embed documents in any app. SDKs for Node.js, Python, PHP, .NET & Java.) both appear on the Smoower Developer Ecosystem Index.

SignNow (rank #209) holds a modest lead over Grammarly (rank #602) on the overall Smoower ecosystem score (49 vs 34). The gap of 15 points reflects composite signals across code, docs, community and reach.

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

Grammarly carries 4,355 GitHub stars across 23 public repos, with 0 repositories active in the last 90 days and 0 external contributors on record. SignNow shows 96 stars across 16 public repos, 8 active in the last 90 days and 4 external contributors. The star gap on its own does not decide the comparison, but Grammarly's footprint is roughly 45.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Grammarly is the stronger read for anyone weighting community. SignNow looks better where education 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.