Skip to content
effecthub

BulkCorrector vs Grammarly

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. BulkCorrector starts at $29, Grammarly at $12. Both have a free tier.

BulkCorrectorSplits long documents into chunks to run AI grammar, spelling, and translation fixes past token limits.GrammarlyGrammar, tone and rewriting help inside every app

Side by side

FactBulkCorrectorGrammarly
CategoryGrammar & ProofreadingGrammar & Proofreading
Pricing modelFreemiumFreemium
Starts at$29 one_time$12 month
Public APINoNo
PlatformsWebWeb, Chrome Ext, Windows, macOS, iOS, Android
CompanyMelvynxSuperhuman
Launched—2009
Last verifiedSep 1, 2026Sep 6, 2026

What our research says

BulkCorrector

BulkCorrector fixes a real annoyance with AI proofreading tools: long documents blow past token limits, and manually splitting text into chunks is tedious. Automating that segmentation, then running corrections across every piece, is a narrow but genuinely useful function, and the one-time $29 price is cheap next to subscription grammar tools for someone who just needs to process a big document occasionally. It's a solo-developer project rather than a company, so support and longevity depend on one person continuing to maintain it.

Pros

  • Automatic segmentation handles documents beyond normal AI token limits
  • One-time $29 payment instead of a recurring subscription
  • Custom prompts and a prompt library on the paid tier
  • Free tier usable without payment up to 32,000 characters

Cons

  • Custom prompts and full history are locked behind the paid tier
  • Built and maintained by a single developer rather than a company or team
  • No company entity or country published, only the developer's name

Grammarly

Still the default for catching mistakes inside other people's software, but the free tier has quietly become an AI-prompt meter and the honest price is $30 unless you commit to a full year.

Pros

  • Runs inside the apps people already write in rather than as a separate editor
  • Free tier still covers spelling, grammar and tone detection with no time limit
  • Pro folds in plagiarism and AI-text detection that rivals charge for separately

Cons

  • The $12 headline is the annual rate; paying monthly costs $30
  • Free AI allowance is 100 prompts a month and depletes quickly
  • No public API, so it cannot be embedded in another product
  • Enterprise pricing is not published anywhere on the site

Which one fits

Choose BulkCorrector if you need

  • Correcting or translating a long document that exceeds normal AI token limits
  • One-time or occasional heavy use, given the one-time payment instead of a subscription

Choose Grammarly if you need

  • Anyone writing in a browser, Word or email who wants corrections in place
  • Teams enforcing a house style guide across people who are not writers
  • Non-native English speakers who want fluency rewrites, not just error flags

More comparisons

All BulkCorrector alternatives →Browse all Grammar & Proofreading →