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Documentation · head to head

Bump.sh vs Grammarly

Bump.sh logo

Bump.sh

Documentation

Hosted API documentation that diffs each new spec against the last and publishes a human readable changelog

From
On request
Rated
-
Full reviewWebsite
Grammarly logo

Grammarly

Documentation

Great writing, simplified

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Grammarly has a free tier, so it costs nothing to try first.
  • Each has a real cost: Bump.sh the service is hosted only, so organisations that cannot send their API specification to a third party are excluded regardless of how well the diff works.; Grammarly occasional false positives and grammatically incorrect suggestions that can introduce errors
  • They diverge on capability: Bump.sh covers Structural spec diff, Grammarly covers Grammar checking.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Bump.sh and Grammarly actually diverge.

Attributes where Bump.sh and Grammarly differ
AttributeBump.shGrammarly
Starting priceOn requestFree
Pricing modelquoteUnknown
Free tierNoYes
PlatformsWebWeb, macOS, Windows, iOS, Android
FoundedUnknown2009

Identical on both: user rating (Not yet rated), category (Documentation).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Bump.sh

  • Structural spec diff
  • Published changelog
  • AsyncAPI support
  • CI integration
  • Multi API hubs
  • Custom domain and branding
  • Access control

Only in Grammarly

  • Grammar checking
  • Spelling correction
  • Punctuation
  • Clarity suggestions
  • Engagement feedback
  • Delivery insights
  • Plagiarism checker
  • Citation generator

What people use each for

The jobs each tool is most often brought in to do.

Bump.sh

  • A public API with paying consumers where an accidental breaking change carries contractual consequencesnot Grammarly
  • An event driven platform that needs AsyncAPI documentation rather than REST only toolingnot Grammarly
  • A pull request gate that must fail when a spec change breaks an existing clientnot Grammarly
  • A partner portal grouping several internal APIs behind access control on a custom domainnot Grammarly

Grammarly

  • Email writingnot Bump.sh
  • Document editingnot Bump.sh
  • Academic writingnot Bump.sh
  • Business communicationnot Bump.sh
  • Content creationnot Bump.sh

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Bump.sh

  • The service is hosted only, so organisations that cannot send their API specification to a third party are excluded regardless of how well the diff works.
  • Long form guides and tutorials are secondary to the reference, so most teams still run and pay for a second documentation site.
  • Diff quality depends on spec quality, and a specification generated loosely from code annotations produces noisy change reports that teams learn to ignore.
  • It is a small European vendor in a category where larger competitors bundle documentation with gateways and portals, so procurement at a large enterprise can take longer than the evaluation did.
  • Because pricing is not something a buyer can confirm without contact, budgeting for it early in a comparison is guesswork.

Grammarly

  • Occasional false positives and grammatically incorrect suggestions that can introduce errors
  • Privacy concerns about sending text to Grammarly's servers for analysis
  • AI capabilities sometimes produce hallucinations and fabricated citations that appear grammatically correct

Pricing, plan by plan

Bump.sh

On request
  • Bump.sh$undefined/year
    • Hosted API documentation portal
    • Automatic breaking change detection
    • Consumer facing changelog

Grammarly

Free
  • FreeFree
    • Basic grammar and spelling checks
    • Tone visibility
    • 100 AI prompts per month
  • Pro$12/month
    • Sentence rewrites
    • Tone adjustment
    • Plagiarism and AI detection

Which should you pick?

Choose Bump.sh if

  • You need structural spec diff.
  • You also want published changelog.
Bump.sh review

Choose Grammarly if

  • You need grammar checking.
  • You want to start without paying.
  • You work on Web, macOS, Windows, iOS, Android.
  • You also want spelling correction.
Grammarly review

Questions people ask

Is Bump.sh or Grammarly better?
Neither clearly leads. Bump.sh starts at On request and Grammarly at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Bump.sh or Grammarly?
Grammarly has a free tier; the other does not. Paid plans start at On request for Bump.sh and Free for Grammarly.
Does Bump.sh or Grammarly run on more platforms?
Bump.sh runs on Web. Grammarly runs on Web, macOS, Windows, iOS, Android.
Can I use Grammarly for free?
Yes. Grammarly has a free tier, so you can try it without paying. Bump.sh starts at On request.
What is Bump.sh best used for?
Bump.sh is most often used for a public api with paying consumers where an accidental breaking change carries contractual consequences, an event driven platform that needs asyncapi documentation rather than rest only tooling, a pull request gate that must fail when a spec change breaks an existing client, a partner portal grouping several internal apis behind access control on a custom domain. Of those, a public api with paying consumers where an accidental breaking change carries contractual consequences and an event driven platform that needs asyncapi documentation rather than rest only tooling are not what Grammarly is typically brought in for.
What can Bump.sh do that Grammarly cannot?
Bump.sh covers Structural spec diff, Published changelog, AsyncAPI support, CI integration. Grammarly covers Grammar checking, Spelling correction, Punctuation, Clarity suggestions.

Answered from the vendors’ own pages

Bump.sh: What does it do that a normal API docs renderer does not?

It compares each published spec with the previous one and tells you, and your consumers, exactly what changed and whether it breaks clients.

Grammarly: Does Grammarly have a free version?

Yes, Grammarly offers a free tier with basic spelling, grammar, and punctuation checks, tone visibility, and 100 AI prompts per month. The Pro plan ($12/month annual) adds sentence rewriting, plagiarism detection, and 2,000 AI prompts.

Source
Bump.sh: Does it support event driven APIs?

Yes. AsyncAPI is a first class input alongside OpenAPI, which is unusual in this category.

Grammarly: What platforms does Grammarly work with?

Grammarly works across 1 million+ apps including Google Docs, Microsoft Word, Outlook, Slack, Gmail, and web browsers. It also integrates with productivity tools like Asana, Jira, Monday.com, Confluence, and HubSpot.

Source
Bump.sh: Can I self host it?

No. It is a hosted service only.

Grammarly: Can I use Grammarly offline?

Grammarly requires an internet connection to function, though the browser extension works with some offline text areas. For offline use, the desktop app and browser extensions sync when reconnected.

Source
Bump.sh: Can it block a merge?

Yes. The command line tool and GitHub action return a failure on a detected breaking change.

Grammarly: What is included in the Enterprise plan?

The Enterprise plan includes unlimited team members, dedicated support, custom roles and permissions, data loss prevention, bring-your-own-key encryption, and unlimited AI prompts. Pricing is custom and available by contacting sales.

Source
Bump.sh: Is it a full documentation site?

It is primarily reference and changelog. Plan on a separate generator for guides and conceptual content.

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