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Linguix vs Sapling

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.

The short answer

Cheaper paid plan
Sapling — $12/mo vs $30/mo for Linguix
Free plan
Both have one
Public API
Both have one
Higher Trust score
Sapling — 96 vs 91 for Linguix
Best fit
Linguix: writers working in French, German, Spanish, Portuguese, Italian or Polish · Sapling: Support and sales teams answering high message volumes inside helpdesks and CRMs

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

LinguixGrammar and style checking in the browser across seven languagesSaplingGrammar, autocomplete and snippet suggestions for customer-facing teams, plus a language API with AI detection

Side by side

FactLinguixSapling
CategoryGrammar & ProofreadingGrammar & Proofreading
Pricing modelFreemiumFreemium
Starts at$30/mo$12/mo
Public APIYesYes
Trust score91 / 10096 / 100
PlatformsWeb, Chrome extension, Android, APIWeb, Chrome extension, API
CompanyTextly Inc.Sapling Intelligence
Launched2018—
Last verifiedOct 16, 2026Oct 16, 2026

What our research says

Linguix

A cheaper Grammarly substitute whose two genuinely interesting features are not what it leads with: non-English checking and a grammar API you can embed in your own editor. As a pure English writing assistant it trails the market leaders.

Pros

  • multi-language checking that most English-first rivals do not match
  • documented API with a free 1M-character tier for evaluation
  • text-expansion shortcuts bundled instead of sold as a separate tool
  • two-year plan brings the effective price down to about $10/month

Cons

  • a permanent 50%-off banner makes the real list price hard to pin down
  • team and business pricing is not published anywhere on the site
  • very small company — headcount reported in the low single digits in 2026
  • English suggestion quality does not match Grammarly or LanguageTool Premium

Sapling

Think of it as a grammar checker rebuilt for support queues: the payoff is faster replies via snippets and autocomplete, plus an API you can build product features on. It is less consumer-polished than the big-name checkers, and the better models sit behind Pro and Enterprise.

Pros

  • Snippets and autocomplete target measurable response-time gains, not just typo fixes
  • Real developer surface: REST API, Python/JS SDKs and an MCP server
  • Annual Pro at $12/month is inexpensive for the category
  • On-premise option is rare among writing assistants

Cons

  • Suggestion polish and UI trail Grammarly's consumer experience
  • AI-detection results are probabilistic and unsuitable as sole proof

Which one fits

Choose Linguix if you need

  • writers working in French, German, Spanish, Portuguese, Italian or Polish
  • developers embedding grammar checking into their own product via API
  • teams enforcing one style guide across support and sales writing
  • heavy users of canned replies and text snippets

Choose Sapling if you need

  • Support and sales teams answering high message volumes inside helpdesks and CRMs
  • Developers embedding grammar checking or AI detection through the API and SDKs
  • Organizations that need on-premise or self-hosted deployment for compliance

Linguix vs Sapling: the questions people ask

Is Linguix cheaper than Sapling?

On published entry prices, Sapling starts lower — $12/mo against $30/mo for Linguix. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does Linguix or Sapling have a free tier?

Both: Linguix has a free tier, and Sapling has a free tier.

Which has a public API, Linguix or Sapling?

Both ship a public API, so either can be built on; the fact table above shows the platforms each one runs on.

More comparisons

All Linguix alternatives →Browse all Grammar & Proofreading →